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Merge 4.8-rc5 into driver-core-next 

We want the sysfs and kernfs in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2016-09-05 08:09:04 +02:00
parent 2c507e464f c6935931c1
commit 2f5bb02ff2
368 changed files with 2902 additions and 1767 deletions
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2
.mailmap
View File

@ -158,6 +158,8 @@ Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com>
Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar2@arm.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@virtuozzo.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>
Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Yusuke Goda <goda.yusuke@renesas.com>
Gustavo Padovan <gustavo@las.ic.unicamp.br>

2
Documentation/ABI/stable/sysfs-devices
View File

@ -1,7 +1,7 @@
# Note: This documents additional properties of any device beyond what
# is documented in Documentation/sysfs-rules.txt
What: /sys/devices/*/of_path
What: /sys/devices/*/of_node
Date: February 2015
Contact: Device Tree mailing list <devicetree@vger.kernel.org>
Description:

1
Documentation/PCI/pci.txt
View File

@ -124,7 +124,6 @@ initialization with a pointer to a structure describing the driver
The ID table is an array of struct pci_device_id entries ending with an
all-zero entry. Definitions with static const are generally preferred.
Use of the deprecated macro DEFINE_PCI_DEVICE_TABLE should be avoided.
Each entry consists of:

7
Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
View File

@ -16,6 +16,11 @@ Required properties:
- vref-supply: The regulator supply ADC reference voltage.
- #io-channel-cells: Should be 1, see ../iio-bindings.txt
Optional properties:
- resets: Must contain an entry for each entry in reset-names if need support
this option. See ../reset/reset.txt for details.
- reset-names: Must include the name "saradc-apb".
Example:
saradc: saradc@2006c000 {
compatible = "rockchip,saradc";
@ -23,6 +28,8 @@ Example:
interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
clock-names = "saradc", "apb_pclk";
resets = <&cru SRST_SARADC>;
reset-names = "saradc-apb";
#io-channel-cells = <1>;
vref-supply = <&vcc18>;
};

19
Documentation/devicetree/bindings/serial/8250.txt
View File

@ -42,9 +42,6 @@ Optional properties:
- auto-flow-control: one way to enable automatic flow control support. The
driver is allowed to detect support for the capability even without this
property.
- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD
line respectively. It will use specified GPIO instead of the peripheral
function pin for the UART feature. If unsure, don't specify this property.
Note:
* fsl,ns16550:
@ -66,19 +63,3 @@ Example:
interrupts = <10>;
reg-shift = <2>;
};
Example for OMAP UART using GPIO-based modem control signals:
uart4: serial@49042000 {
compatible = "ti,omap3-uart";
reg = <0x49042000 0x400>;
interrupts = <80>;
ti,hwmods = "uart4";
clock-frequency = <48000000>;
cts-gpios = <&gpio3 5 GPIO_ACTIVE_LOW>;
rts-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
dtr-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
dsr-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
dcd-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
rng-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
};

8
Documentation/filesystems/overlayfs.txt
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@ -183,12 +183,10 @@ The copy_up operation essentially creates a new, identical file and
moves it over to the old name. The new file may be on a different
filesystem, so both st_dev and st_ino of the file may change.
Any open files referring to this inode will access the old data and
metadata. Similarly any file locks obtained before copy_up will not
apply to the copied up file.
Any open files referring to this inode will access the old data.
On a file opened with O_RDONLY fchmod(2), fchown(2), futimesat(2) and
fsetxattr(2) will fail with EROFS.
Any file locks (and leases) obtained before copy_up will not apply
to the copied up file.
If a file with multiple hard links is copied up, then this will
"break" the link. Changes will not be propagated to other names

20
Documentation/networking/dsa/dsa.txt
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@ -587,26 +587,6 @@ of DSA, would be the its port-based VLAN, used by the associated bridge device.
TODO
====
The platform device problem
---------------------------
DSA is currently implemented as a platform device driver which is far from ideal
as was discussed in this thread:
http://permalink.gmane.org/gmane.linux.network/329848
This basically prevents the device driver model to be properly used and applied,
and support non-MDIO, non-MMIO Ethernet connected switches.
Another problem with the platform device driver approach is that it prevents the
use of a modular switch drivers build due to a circular dependency, illustrated
here:
http://comments.gmane.org/gmane.linux.network/345803
Attempts of reworking this has been done here:
https://lwn.net/Articles/643149/
Making SWITCHDEV and DSA converge towards an unified codebase
-------------------------------------------------------------

2
Documentation/powerpc/transactional_memory.txt
View File

@ -167,6 +167,8 @@ signal will be rolled back anyway.
For signals taken in non-TM or suspended mode, we use the
normal/non-checkpointed stack pointer.
Any transaction initiated inside a sighandler and suspended on return
from the sighandler to the kernel will get reclaimed and discarded.
Failure cause codes used by kernel
==================================

4
Documentation/rapidio/mport_cdev.txt
View File

@ -80,6 +80,10 @@ functionality of their platform when planning to use this driver:
III. Module parameters
- 'dma_timeout' - DMA transfer completion timeout (in msec, default value 3000).
This parameter set a maximum completion wait time for SYNC mode DMA
transfer requests and for RIO_WAIT_FOR_ASYNC ioctl requests.
- 'dbg_level' - This parameter allows to control amount of debug information
generated by this device driver. This parameter is formed by set of
bit masks that correspond to the specific functional blocks.

11
MAINTAINERS
View File

@ -798,6 +798,7 @@ M: Laura Abbott <labbott@redhat.com>
M: Sumit Semwal <sumit.semwal@linaro.org>
L: devel@driverdev.osuosl.org
S: Supported
F: Documentation/devicetree/bindings/staging/ion/
F: drivers/staging/android/ion
F: drivers/staging/android/uapi/ion.h
F: drivers/staging/android/uapi/ion_test.h
@ -3247,7 +3248,7 @@ F: kernel/cpuset.c
CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)
M: Johannes Weiner <hannes@cmpxchg.org>
M: Michal Hocko <mhocko@kernel.org>
M: Vladimir Davydov <vdavydov@virtuozzo.com>
M: Vladimir Davydov <vdavydov.dev@gmail.com>
L: cgroups@vger.kernel.org
L: linux-mm@kvack.org
S: Maintained
@ -11232,12 +11233,8 @@ S: Odd Fixes
F: drivers/staging/vt665?/
STAGING - WILC1000 WIFI DRIVER
M: Johnny Kim <johnny.kim@atmel.com>
M: Austin Shin <austin.shin@atmel.com>
M: Chris Park <chris.park@atmel.com>
M: Tony Cho <tony.cho@atmel.com>
M: Glen Lee <glen.lee@atmel.com>
M: Leo Kim <leo.kim@atmel.com>
M: Aditya Shankar <aditya.shankar@microchip.com>
M: Ganesh Krishna <ganesh.krishna@microchip.com>
L: linux-wireless@vger.kernel.org
S: Supported
F: drivers/staging/wilc1000/

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 8
SUBLEVEL = 0
EXTRAVERSION = -rc4
EXTRAVERSION = -rc5
NAME = Psychotic Stoned Sheep
# *DOCUMENTATION*

2
arch/arm/boot/dts/rk3066a.dtsi
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@ -197,6 +197,8 @@
clock-names = "saradc", "apb_pclk";
interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
#io-channel-cells = <1>;
resets = <&cru SRST_SARADC>;
reset-names = "saradc-apb";
status = "disabled";
};

2
arch/arm/boot/dts/rk3288.dtsi
View File

@ -279,6 +279,8 @@
#io-channel-cells = <1>;
clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
clock-names = "saradc", "apb_pclk";
resets = <&cru SRST_SARADC>;
reset-names = "saradc-apb";
status = "disabled";
};

2
arch/arm/boot/dts/rk3xxx.dtsi
View File

@ -399,6 +399,8 @@
#io-channel-cells = <1>;
clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
clock-names = "saradc", "apb_pclk";
resets = <&cru SRST_SARADC>;
reset-names = "saradc-apb";
status = "disabled";
};

3
arch/arm/mach-pxa/idp.c
View File

@ -83,7 +83,8 @@ static struct resource smc91x_resources[] = {
};
static struct smc91x_platdata smc91x_platdata = {
.flags = SMC91X_USE_32BIT | SMC91X_USE_DMA | SMC91X_NOWAIT,
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
SMC91X_USE_DMA | SMC91X_NOWAIT,
};
static struct platform_device smc91x_device = {

3
arch/arm/mach-pxa/xcep.c
View File

@ -120,7 +120,8 @@ static struct resource smc91x_resources[] = {
};
static struct smc91x_platdata xcep_smc91x_info = {
.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT | SMC91X_USE_DMA,
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
SMC91X_NOWAIT | SMC91X_USE_DMA,
};
static struct platform_device smc91x_device = {

3
arch/arm/mach-realview/core.c
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@ -93,7 +93,8 @@ static struct smsc911x_platform_config smsc911x_config = {
};
static struct smc91x_platdata smc91x_platdata = {
.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
SMC91X_NOWAIT,
};
static struct platform_device realview_eth_device = {

2
arch/arm/mach-sa1100/pleb.c
View File

@ -45,7 +45,7 @@ static struct resource smc91x_resources[] = {
};
static struct smc91x_platdata smc91x_platdata = {
.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
.flags = SMC91X_USE_16BIT | SMC91X_USE_8BIT | SMC91X_NOWAIT,
};
static struct platform_device smc91x_device = {

2
arch/arm64/boot/dts/rockchip/rk3368.dtsi
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@ -270,6 +270,8 @@
#io-channel-cells = <1>;
clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
clock-names = "saradc", "apb_pclk";
resets = <&cru SRST_SARADC>;
reset-names = "saradc-apb";
status = "disabled";
};

9
arch/arm64/mm/proc.S
View File

@ -100,7 +100,16 @@ ENTRY(cpu_do_resume)
msr tcr_el1, x8
msr vbar_el1, x9
/*
* __cpu_setup() cleared MDSCR_EL1.MDE and friends, before unmasking
* debug exceptions. By restoring MDSCR_EL1 here, we may take a debug
* exception. Mask them until local_dbg_restore() in cpu_suspend()
* resets them.
*/
disable_dbg
msr mdscr_el1, x10
msr sctlr_el1, x12
/*
* Restore oslsr_el1 by writing oslar_el1

3
arch/blackfin/mach-bf561/boards/cm_bf561.c
View File

@ -146,7 +146,8 @@ static struct platform_device hitachi_fb_device = {
#include <linux/smc91x.h>
static struct smc91x_platdata smc91x_info = {
.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
SMC91X_NOWAIT,
.leda = RPC_LED_100_10,
.ledb = RPC_LED_TX_RX,
};

3
arch/blackfin/mach-bf561/boards/ezkit.c
View File

@ -134,7 +134,8 @@ static struct platform_device net2272_bfin_device = {
#include <linux/smc91x.h>
static struct smc91x_platdata smc91x_info = {
.flags = SMC91X_USE_32BIT | SMC91X_NOWAIT,
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
SMC91X_NOWAIT,
.leda = RPC_LED_100_10,
.ledb = RPC_LED_TX_RX,
};

1
arch/parisc/Kconfig
View File

@ -1,6 +1,5 @@
config PARISC
def_bool y
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_MIGHT_HAVE_PC_PARPORT
select HAVE_IDE
select HAVE_OPROFILE

1
arch/parisc/configs/c8000_defconfig
View File

@ -245,7 +245,6 @@ CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_PROVE_RCU_DELAY=y
CONFIG_DEBUG_BLOCK_EXT_DEVT=y
CONFIG_LATENCYTOP=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_KEYS=y
# CONFIG_CRYPTO_HW is not set
CONFIG_FONTS=y

1
arch/parisc/configs/generic-64bit_defconfig
View File

@ -291,7 +291,6 @@ CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_ECB=m
CONFIG_CRYPTO_PCBC=m

20
arch/parisc/include/asm/uaccess.h
View File

@ -208,13 +208,13 @@ unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned lo
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user
extern void copy_from_user_overflow(void)
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
__compiletime_error("copy_from_user() buffer size is not provably correct")
#else
__compiletime_warning("copy_from_user() buffer size is not provably correct")
#endif
;
extern void __compiletime_error("usercopy buffer size is too small")
__bad_copy_user(void);
static inline void copy_user_overflow(int size, unsigned long count)
{
WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
}
static inline unsigned long __must_check copy_from_user(void *to,
const void __user *from,
@ -223,10 +223,12 @@ static inline unsigned long __must_check copy_from_user(void *to,
int sz = __compiletime_object_size(to);
int ret = -EFAULT;
if (likely(sz == -1 || !__builtin_constant_p(n) || sz >= n))
if (likely(sz == -1 || sz >= n))
ret = __copy_from_user(to, from, n);
else if (!__builtin_constant_p(n))
copy_user_overflow(sz, n);
else
copy_from_user_overflow();
__bad_copy_user();
return ret;
}

1
arch/powerpc/include/asm/cputhreads.h
View File

@ -3,6 +3,7 @@
#ifndef __ASSEMBLY__
#include <linux/cpumask.h>
#include <asm/cpu_has_feature.h>
/*
* Mapping of threads to cores

2
arch/powerpc/include/asm/hmi.h
View File

@ -21,7 +21,7 @@
#ifndef __ASM_PPC64_HMI_H__
#define __ASM_PPC64_HMI_H__
#ifdef CONFIG_PPC_BOOK3S_64
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
#define CORE_TB_RESYNC_REQ_BIT 63
#define MAX_SUBCORE_PER_CORE 4

12
arch/powerpc/include/asm/paca.h
View File

@ -183,11 +183,6 @@ struct paca_struct {
*/
u16 in_mce;
u8 hmi_event_available; /* HMI event is available */
/*
* Bitmap for sibling subcore status. See kvm/book3s_hv_ras.c for
* more details
*/
struct sibling_subcore_state *sibling_subcore_state;
#endif
/* Stuff for accurate time accounting */
@ -202,6 +197,13 @@ struct paca_struct {
struct kvmppc_book3s_shadow_vcpu shadow_vcpu;
#endif
struct kvmppc_host_state kvm_hstate;
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
/*
* Bitmap for sibling subcore status. See kvm/book3s_hv_ras.c for
* more details
*/
struct sibling_subcore_state *sibling_subcore_state;
#endif
#endif
};

1
arch/powerpc/include/asm/pci-bridge.h
View File

@ -301,6 +301,7 @@ extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
/* Allocate & free a PCI host bridge structure */
extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev);
extern void pcibios_free_controller(struct pci_controller *phb);
extern void pcibios_free_controller_deferred(struct pci_host_bridge *bridge);
#ifdef CONFIG_PCI
extern int pcibios_vaddr_is_ioport(void __iomem *address);

2
arch/powerpc/kernel/Makefile
View File

@ -41,7 +41,7 @@ obj-$(CONFIG_VDSO32) += vdso32/
obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o
obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o
obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o hmi.o
obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o
obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_book3e.o
obj-$(CONFIG_PPC64) += vdso64/
obj-$(CONFIG_ALTIVEC) += vecemu.o

12
arch/powerpc/kernel/entry_64.S
View File

@ -368,13 +368,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
tabort_syscall:
/* Firstly we need to enable TM in the kernel */
mfmsr r10
li r13, 1
rldimi r10, r13, MSR_TM_LG, 63-MSR_TM_LG
li r9, 1
rldimi r10, r9, MSR_TM_LG, 63-MSR_TM_LG
mtmsrd r10, 0
/* tabort, this dooms the transaction, nothing else */
li r13, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
TABORT(R13)
li r9, (TM_CAUSE_SYSCALL|TM_CAUSE_PERSISTENT)
TABORT(R9)
/*
* Return directly to userspace. We have corrupted user register state,
@ -382,8 +382,8 @@ tabort_syscall:
* resume after the tbegin of the aborted transaction with the
* checkpointed register state.
*/
li r13, MSR_RI
andc r10, r10, r13
li r9, MSR_RI
andc r10, r10, r9
mtmsrd r10, 1
mtspr SPRN_SRR0, r11
mtspr SPRN_SRR1, r12

29
arch/powerpc/kernel/exceptions-64s.S
View File

@ -485,7 +485,23 @@ machine_check_fwnmi:
EXCEPTION_PROLOG_0(PACA_EXMC)
machine_check_pSeries_0:
EXCEPTION_PROLOG_1(PACA_EXMC, KVMTEST, 0x200)
EXCEPTION_PROLOG_PSERIES_1(machine_check_common, EXC_STD)
/*
* The following is essentially EXCEPTION_PROLOG_PSERIES_1 with the
* difference that MSR_RI is not enabled, because PACA_EXMC is being
* used, so nested machine check corrupts it. machine_check_common
* enables MSR_RI.
*/
ld r12,PACAKBASE(r13)
ld r10,PACAKMSR(r13)
xori r10,r10,MSR_RI
mfspr r11,SPRN_SRR0
LOAD_HANDLER(r12, machine_check_common)
mtspr SPRN_SRR0,r12
mfspr r12,SPRN_SRR1
mtspr SPRN_SRR1,r10
rfid
b . /* prevent speculative execution */
KVM_HANDLER_SKIP(PACA_EXMC, EXC_STD, 0x200)
KVM_HANDLER_SKIP(PACA_EXGEN, EXC_STD, 0x300)
KVM_HANDLER_SKIP(PACA_EXSLB, EXC_STD, 0x380)
@ -969,14 +985,17 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
machine_check_common:
mfspr r10,SPRN_DAR
std r10,PACA_EXGEN+EX_DAR(r13)
std r10,PACA_EXMC+EX_DAR(r13)
mfspr r10,SPRN_DSISR
stw r10,PACA_EXGEN+EX_DSISR(r13)
stw r10,PACA_EXMC+EX_DSISR(r13)
EXCEPTION_PROLOG_COMMON(0x200, PACA_EXMC)
FINISH_NAP
RECONCILE_IRQ_STATE(r10, r11)
ld r3,PACA_EXGEN+EX_DAR(r13)
lwz r4,PACA_EXGEN+EX_DSISR(r13)
ld r3,PACA_EXMC+EX_DAR(r13)
lwz r4,PACA_EXMC+EX_DSISR(r13)
/* Enable MSR_RI when finished with PACA_EXMC */
li r10,MSR_RI
mtmsrd r10,1
std r3,_DAR(r1)
std r4,_DSISR(r1)
bl save_nvgprs

2
arch/powerpc/kernel/kprobes.c
View File

@ -29,7 +29,7 @@
#include <linux/kprobes.h>
#include <linux/ptrace.h>
#include <linux/preempt.h>
#include <linux/module.h>
#include <linux/extable.h>
#include <linux/kdebug.h>
#include <linux/slab.h>
#include <asm/code-patching.h>

36
arch/powerpc/kernel/pci-common.c
View File

@ -153,6 +153,42 @@ void pcibios_free_controller(struct pci_controller *phb)
}
EXPORT_SYMBOL_GPL(pcibios_free_controller);
/*
* This function is used to call pcibios_free_controller()
* in a deferred manner: a callback from the PCI subsystem.
*
* _*DO NOT*_ call pcibios_free_controller() explicitly if
* this is used (or it may access an invalid *phb pointer).
*
* The callback occurs when all references to the root bus
* are dropped (e.g., child buses/devices and their users).
*
* It's called as .release_fn() of 'struct pci_host_bridge'
* which is associated with the 'struct pci_controller.bus'
* (root bus) - it expects .release_data to hold a pointer
* to 'struct pci_controller'.
*
* In order to use it, register .release_fn()/release_data
* like this:
*
* pci_set_host_bridge_release(bridge,
* pcibios_free_controller_deferred
* (void *) phb);
*
* e.g. in the pcibios_root_bridge_prepare() callback from
* pci_create_root_bus().
*/
void pcibios_free_controller_deferred(struct pci_host_bridge *bridge)
{
struct pci_controller *phb = (struct pci_controller *)
bridge->release_data;
pr_debug("domain %d, dynamic %d\n", phb->global_number, phb->is_dynamic);
pcibios_free_controller(phb);
}
EXPORT_SYMBOL_GPL(pcibios_free_controller_deferred);
/*
* The function is used to return the minimal alignment
* for memory or I/O windows of the associated P2P bridge.

9
arch/powerpc/kernel/prom_init.c
View File

@ -695,7 +695,7 @@ unsigned char ibm_architecture_vec[] = {
OV4_MIN_ENT_CAP, /* minimum VP entitled capacity */
/* option vector 5: PAPR/OF options */
VECTOR_LENGTH(18), /* length */
VECTOR_LENGTH(21), /* length */
0, /* don't ignore, don't halt */
OV5_FEAT(OV5_LPAR) | OV5_FEAT(OV5_SPLPAR) | OV5_FEAT(OV5_LARGE_PAGES) |
OV5_FEAT(OV5_DRCONF_MEMORY) | OV5_FEAT(OV5_DONATE_DEDICATE_CPU) |
@ -726,8 +726,11 @@ unsigned char ibm_architecture_vec[] = {
0,
0,
OV5_FEAT(OV5_PFO_HW_RNG) | OV5_FEAT(OV5_PFO_HW_ENCR) |
OV5_FEAT(OV5_PFO_HW_842),
OV5_FEAT(OV5_SUB_PROCESSORS),
OV5_FEAT(OV5_PFO_HW_842), /* Byte 17 */
0, /* Byte 18 */
0, /* Byte 19 */
0, /* Byte 20 */
OV5_FEAT(OV5_SUB_PROCESSORS), /* Byte 21 */
/* option vector 6: IBM PAPR hints */
VECTOR_LENGTH(3), /* length */

14
arch/powerpc/kernel/signal_32.c
View File

@ -1226,7 +1226,21 @@ long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
(regs->gpr[1] + __SIGNAL_FRAMESIZE + 16);
if (!access_ok(VERIFY_READ, rt_sf, sizeof(*rt_sf)))
goto bad;
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
/*
* If there is a transactional state then throw it away.
* The purpose of a sigreturn is to destroy all traces of the
* signal frame, this includes any transactional state created
* within in. We only check for suspended as we can never be
* active in the kernel, we are active, there is nothing better to
* do than go ahead and Bad Thing later.
* The cause is not important as there will never be a
* recheckpoint so it's not user visible.
*/
if (MSR_TM_SUSPENDED(mfmsr()))
tm_reclaim_current(0);
if (__get_user(tmp, &rt_sf->uc.uc_link))
goto bad;
uc_transact = (struct ucontext __user *)(uintptr_t)tmp;

14
arch/powerpc/kernel/signal_64.c
View File

@ -676,7 +676,21 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5,
if (__copy_from_user(&set, &uc->uc_sigmask, sizeof(set)))
goto badframe;
set_current_blocked(&set);
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
/*
* If there is a transactional state then throw it away.
* The purpose of a sigreturn is to destroy all traces of the
* signal frame, this includes any transactional state created
* within in. We only check for suspended as we can never be
* active in the kernel, we are active, there is nothing better to
* do than go ahead and Bad Thing later.
* The cause is not important as there will never be a
* recheckpoint so it's not user visible.
*/
if (MSR_TM_SUSPENDED(mfmsr()))
tm_reclaim_current(0);
if (__get_user(msr, &uc->uc_mcontext.gp_regs[PT_MSR]))
goto badframe;
if (MSR_TM_ACTIVE(msr)) {

2
arch/powerpc/kernel/smp.c
View File

@ -830,7 +830,7 @@ int __cpu_disable(void)
/* Update sibling maps */
base = cpu_first_thread_sibling(cpu);
for (i = 0; i < threads_per_core; i++) {
for (i = 0; i < threads_per_core && base + i < nr_cpu_ids; i++) {
cpumask_clear_cpu(cpu, cpu_sibling_mask(base + i));
cpumask_clear_cpu(base + i, cpu_sibling_mask(cpu));
cpumask_clear_cpu(cpu, cpu_core_mask(base + i));

3
arch/powerpc/kernel/traps.c
View File

@ -25,7 +25,8 @@
#include <linux/user.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/extable.h>
#include <linux/module.h> /* print_modules */
#include <linux/prctl.h>
#include <linux/delay.h>
#include <linux/kprobes.h>

1
arch/powerpc/kvm/Makefile
View File

@ -78,6 +78,7 @@ kvm-book3s_64-builtin-xics-objs-$(CONFIG_KVM_XICS) := \
ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) += \
book3s_hv_hmi.o \
book3s_hv_rmhandlers.o \
book3s_hv_rm_mmu.o \
book3s_hv_ras.o \

0
arch/powerpc/kernel/hmi.c → arch/powerpc/kvm/book3s_hv_hmi.c
View File

2
arch/powerpc/mm/fault.c
View File

@ -26,7 +26,7 @@
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/highmem.h>
#include <linux/module.h>
#include <linux/extable.h>
#include <linux/kprobes.h>
#include <linux/kdebug.h>
#include <linux/perf_event.h>

1
arch/powerpc/platforms/512x/mpc512x_lpbfifo.c
View File

@ -528,7 +528,6 @@ static struct platform_driver mpc512x_lpbfifo_driver = {
.remove = mpc512x_lpbfifo_remove,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.of_match_table = mpc512x_lpbfifo_match,
},
};

1
arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
View File

@ -222,7 +222,6 @@ static const struct of_device_id mcu_of_match_table[] = {
static struct i2c_driver mcu_driver = {
.driver = {
.name = "mcu-mpc8349emitx",
.owner = THIS_MODULE,
.of_match_table = mcu_of_match_table,
},
.probe = mcu_probe,

2
arch/powerpc/platforms/embedded6xx/holly.c
View File

@ -26,7 +26,7 @@
#include <linux/tty.h>
#include <linux/serial_core.h>
#include <linux/of_platform.h>
#include <linux/module.h>
#include <linux/extable.h>
#include <asm/time.h>
#include <asm/machdep.h>

2
arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
View File

@ -23,7 +23,7 @@
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/console.h>
#include <linux/module.h>
#include <linux/extable.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/seq_file.h>

7
arch/powerpc/platforms/powernv/opal-dump.c
View File

@ -370,6 +370,7 @@ static irqreturn_t process_dump(int irq, void *data)
uint32_t dump_id, dump_size, dump_type;
struct dump_obj *dump;
char name[22];
struct kobject *kobj;
rc = dump_read_info(&dump_id, &dump_size, &dump_type);
if (rc != OPAL_SUCCESS)
@ -381,8 +382,12 @@ static irqreturn_t process_dump(int irq, void *data)
* that gracefully and not create two conflicting
* entries.
*/
if (kset_find_obj(dump_kset, name))
kobj = kset_find_obj(dump_kset, name);
if (kobj) {
/* Drop reference added by kset_find_obj() */
kobject_put(kobj);
return 0;
}
dump = create_dump_obj(dump_id, dump_size, dump_type);
if (!dump)

7
arch/powerpc/platforms/powernv/opal-elog.c
View File

@ -247,6 +247,7 @@ static irqreturn_t elog_event(int irq, void *data)
uint64_t elog_type;
int rc;
char name[2+16+1];
struct kobject *kobj;
rc = opal_get_elog_size(&id, &size, &type);
if (rc != OPAL_SUCCESS) {
@ -269,8 +270,12 @@ static irqreturn_t elog_event(int irq, void *data)
* that gracefully and not create two conflicting
* entries.
*/
if (kset_find_obj(elog_kset, name))
kobj = kset_find_obj(elog_kset, name);
if (kobj) {
/* Drop reference added by kset_find_obj() */
kobject_put(kobj);
return IRQ_HANDLED;
}
create_elog_obj(log_id, elog_size, elog_type);

2
arch/powerpc/platforms/powernv/pci-ioda.c
View File

@ -149,7 +149,7 @@ static void pnv_ioda_reserve_pe(struct pnv_phb *phb, int pe_no)
static struct pnv_ioda_pe *pnv_ioda_alloc_pe(struct pnv_phb *phb)
{
unsigned long pe = phb->ioda.total_pe_num - 1;
long pe;
for (pe = phb->ioda.total_pe_num - 1; pe >= 0; pe--) {
if (!test_and_set_bit(pe, phb->ioda.pe_alloc))

4
arch/powerpc/platforms/pseries/pci.c
View File

@ -119,6 +119,10 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge)
bus = bridge->bus;
/* Rely on the pcibios_free_controller_deferred() callback. */
pci_set_host_bridge_release(bridge, pcibios_free_controller_deferred,
(void *) pci_bus_to_host(bus));
dn = pcibios_get_phb_of_node(bus);
if (!dn)
return 0;

7
arch/powerpc/platforms/pseries/pci_dlpar.c
View File

@ -106,8 +106,11 @@ int remove_phb_dynamic(struct pci_controller *phb)
release_resource(res);
}
/* Free pci_controller data structure */
pcibios_free_controller(phb);
/*
* The pci_controller data structure is freed by
* the pcibios_free_controller_deferred() callback;
* see pseries_root_bridge_prepare().
*/
return 0;
}

6
arch/powerpc/sysdev/cpm1.c
View File

@ -534,7 +534,8 @@ struct cpm1_gpio16_chip {
static void cpm1_gpio16_save_regs(struct of_mm_gpio_chip *mm_gc)
{
struct cpm1_gpio16_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
struct cpm1_gpio16_chip *cpm1_gc =
container_of(mm_gc, struct cpm1_gpio16_chip, mm_gc);
struct cpm_ioport16 __iomem *iop = mm_gc->regs;
cpm1_gc->cpdata = in_be16(&iop->dat);
@ -649,7 +650,8 @@ struct cpm1_gpio32_chip {
static void cpm1_gpio32_save_regs(struct of_mm_gpio_chip *mm_gc)
{
struct cpm1_gpio32_chip *cpm1_gc = gpiochip_get_data(&mm_gc->gc);
struct cpm1_gpio32_chip *cpm1_gc =
container_of(mm_gc, struct cpm1_gpio32_chip, mm_gc);
struct cpm_ioport32b __iomem *iop = mm_gc->regs;
cpm1_gc->cpdata = in_be32(&iop->dat);

3
arch/powerpc/sysdev/cpm_common.c
View File

@ -94,7 +94,8 @@ struct cpm2_gpio32_chip {
static void cpm2_gpio32_save_regs(struct of_mm_gpio_chip *mm_gc)
{
struct cpm2_gpio32_chip *cpm2_gc = gpiochip_get_data(&mm_gc->gc);
struct cpm2_gpio32_chip *cpm2_gc =
container_of(mm_gc, struct cpm2_gpio32_chip, mm_gc);
struct cpm2_ioports __iomem *iop = mm_gc->regs;
cpm2_gc->cpdata = in_be32(&iop->dat);

2
arch/powerpc/sysdev/fsl_rio.c
View File

@ -23,7 +23,7 @@
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/extable.h>
#include <linux/types.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>

1
arch/s390/Kconfig
View File

@ -68,7 +68,6 @@ config DEBUG_RODATA
config S390
def_bool y
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_GCOV_PROFILE_ALL

1
arch/s390/configs/default_defconfig
View File

@ -602,7 +602,6 @@ CONFIG_FAIL_FUTEX=y
CONFIG_FAULT_INJECTION_DEBUG_FS=y
CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
CONFIG_LATENCYTOP=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_IRQSOFF_TRACER=y
CONFIG_PREEMPT_TRACER=y
CONFIG_SCHED_TRACER=y

1
arch/s390/configs/gcov_defconfig
View File

@ -552,7 +552,6 @@ CONFIG_NOTIFIER_ERROR_INJECTION=m
CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
CONFIG_PM_NOTIFIER_ERROR_INJECT=m
CONFIG_LATENCYTOP=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_BLK_DEV_IO_TRACE=y
# CONFIG_KPROBE_EVENT is not set
CONFIG_TRACE_ENUM_MAP_FILE=y

1
arch/s390/configs/performance_defconfig
View File

@ -549,7 +549,6 @@ CONFIG_TIMER_STATS=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_LATENCYTOP=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_STACK_TRACER=y

1
arch/s390/defconfig
View File

@ -172,7 +172,6 @@ CONFIG_DEBUG_NOTIFIERS=y
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_RCU_TRACE=y
CONFIG_LATENCYTOP=y
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
CONFIG_SCHED_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y

19
arch/s390/include/asm/uaccess.h
View File

@ -311,6 +311,14 @@ int __get_user_bad(void) __attribute__((noreturn));
#define __put_user_unaligned __put_user
#define __get_user_unaligned __get_user
extern void __compiletime_error("usercopy buffer size is too small")
__bad_copy_user(void);
static inline void copy_user_overflow(int size, unsigned long count)
{
WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
}
/**
* copy_to_user: - Copy a block of data into user space.
* @to: Destination address, in user space.
@ -332,12 +340,6 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
return __copy_to_user(to, from, n);
}
void copy_from_user_overflow(void)
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
__compiletime_warning("copy_from_user() buffer size is not provably correct")
#endif
;
/**
* copy_from_user: - Copy a block of data from user space.
* @to: Destination address, in kernel space.
@ -362,7 +364,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
might_fault();
if (unlikely(sz != -1 && sz < n)) {
copy_from_user_overflow();
if (!__builtin_constant_p(n))
copy_user_overflow(sz, n);
else
__bad_copy_user();
return n;
}
return __copy_from_user(to, from, n);

1
arch/tile/Kconfig
View File

@ -4,7 +4,6 @@
config TILE
def_bool y
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_WANT_FRAME_POINTERS

22
arch/tile/include/asm/uaccess.h
View File

@ -416,14 +416,13 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
return n;
}
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
/*
* There are still unprovable places in the generic code as of 2.6.34, so this
* option is not really compatible with -Werror, which is more useful in
* general.
*/
extern void copy_from_user_overflow(void)
__compiletime_warning("copy_from_user() size is not provably correct");
extern void __compiletime_error("usercopy buffer size is too small")
__bad_copy_user(void);
static inline void copy_user_overflow(int size, unsigned long count)
{
WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
}
static inline unsigned long __must_check copy_from_user(void *to,
const void __user *from,
@ -433,14 +432,13 @@ static inline unsigned long __must_check copy_from_user(void *to,
if (likely(sz == -1 || sz >= n))
n = _copy_from_user(to, from, n);
else if (!__builtin_constant_p(n))
copy_user_overflow(sz, n);
else
copy_from_user_overflow();
__bad_copy_user();
return n;
}
#else
#define copy_from_user _copy_from_user
#endif
#ifdef __tilegx__
/**

1
arch/x86/Kconfig
View File

@ -24,7 +24,6 @@ config X86
select ARCH_DISCARD_MEMBLOCK
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_FAST_MULTIPLIER

2
arch/x86/configs/tiny.config
View File

@ -1 +1,3 @@
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set

69
arch/x86/include/asm/uaccess.h
View File

@ -697,43 +697,14 @@ unsigned long __must_check _copy_from_user(void *to, const void __user *from,
unsigned long __must_check _copy_to_user(void __user *to, const void *from,
unsigned n);
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
# define copy_user_diag __compiletime_error
#else
# define copy_user_diag __compiletime_warning
#endif
extern void __compiletime_error("usercopy buffer size is too small")
__bad_copy_user(void);
extern void copy_user_diag("copy_from_user() buffer size is too small")
copy_from_user_overflow(void);
extern void copy_user_diag("copy_to_user() buffer size is too small")
copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
#undef copy_user_diag
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
extern void
__compiletime_warning("copy_from_user() buffer size is not provably correct")
__copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
#define __copy_from_user_overflow(size, count) __copy_from_user_overflow()
extern void
__compiletime_warning("copy_to_user() buffer size is not provably correct")
__copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
#define __copy_to_user_overflow(size, count) __copy_to_user_overflow()
#else
static inline void
__copy_from_user_overflow(int size, unsigned long count)
static inline void copy_user_overflow(int size, unsigned long count)
{
WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
}
#define __copy_to_user_overflow __copy_from_user_overflow
#endif
static inline unsigned long __must_check
copy_from_user(void *to, const void __user *from, unsigned long n)
{
@ -743,31 +714,13 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
kasan_check_write(to, n);
/*
* While we would like to have the compiler do the checking for us
* even in the non-constant size case, any false positives there are
* a problem (especially when DEBUG_STRICT_USER_COPY_CHECKS, but even
* without - the [hopefully] dangerous looking nature of the warning
* would make people go look at the respecitive call sites over and
* over again just to find that there's no problem).
*
* And there are cases where it's just not realistic for the compiler
* to prove the count to be in range. For example when multiple call
* sites of a helper function - perhaps in different source files -
* all doing proper range checking, yet the helper function not doing
* so again.
*
* Therefore limit the compile time checking to the constant size
* case, and do only runtime checking for non-constant sizes.
*/
if (likely(sz < 0 || sz >= n)) {
check_object_size(to, n, false);
n = _copy_from_user(to, from, n);
} else if (__builtin_constant_p(n))
copy_from_user_overflow();
} else if (!__builtin_constant_p(n))
copy_user_overflow(sz, n);
else
__copy_from_user_overflow(sz, n);
__bad_copy_user();
return n;
}
@ -781,21 +734,17 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
might_fault();
/* See the comment in copy_from_user() above. */
if (likely(sz < 0 || sz >= n)) {
check_object_size(from, n, true);
n = _copy_to_user(to, from, n);
} else if (__builtin_constant_p(n))
copy_to_user_overflow();
} else if (!__builtin_constant_p(n))
copy_user_overflow(sz, n);
else
__copy_to_user_overflow(sz, n);
__bad_copy_user();
return n;
}
#undef __copy_from_user_overflow
#undef __copy_to_user_overflow
/*
* We rely on the nested NMI work to allow atomic faults from the NMI path; the
* nested NMI paths are careful to preserve CR2.

12
arch/x86/kernel/cpu/amd.c
View File

@ -669,6 +669,17 @@ static void init_amd_gh(struct cpuinfo_x86 *c)
set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH);
}
#define MSR_AMD64_DE_CFG 0xC0011029
static void init_amd_ln(struct cpuinfo_x86 *c)
{
/*
* Apply erratum 665 fix unconditionally so machines without a BIOS
* fix work.
*/
msr_set_bit(MSR_AMD64_DE_CFG, 31);
}
static void init_amd_bd(struct cpuinfo_x86 *c)
{
u64 value;
@ -726,6 +737,7 @@ static void init_amd(struct cpuinfo_x86 *c)
case 6: init_amd_k7(c); break;
case 0xf: init_amd_k8(c); break;
case 0x10: init_amd_gh(c); break;
case 0x12: init_amd_ln(c); break;
case 0x15: init_amd_bd(c); break;
}

4
arch/x86/kernel/paravirt.c
View File

@ -56,12 +56,12 @@ asm (".pushsection .entry.text, \"ax\"\n"
".popsection");
/* identity function, which can be inlined */
u32 _paravirt_ident_32(u32 x)
u32 notrace _paravirt_ident_32(u32 x)
{
return x;
}
u64 _paravirt_ident_64(u64 x)
u64 notrace _paravirt_ident_64(u64 x)
{
return x;
}

6
drivers/acpi/scan.c
View File

@ -2054,7 +2054,7 @@ int __init acpi_scan_init(void)
static struct acpi_probe_entry *ape;
static int acpi_probe_count;
static DEFINE_SPINLOCK(acpi_probe_lock);
static DEFINE_MUTEX(acpi_probe_mutex);
static int __init acpi_match_madt(struct acpi_subtable_header *header,
const unsigned long end)
@ -2073,7 +2073,7 @@ int __init __acpi_probe_device_table(struct acpi_probe_entry *ap_head, int nr)
if (acpi_disabled)
return 0;
spin_lock(&acpi_probe_lock);
mutex_lock(&acpi_probe_mutex);
for (ape = ap_head; nr; ape++, nr--) {
if (ACPI_COMPARE_NAME(ACPI_SIG_MADT, ape->id)) {
acpi_probe_count = 0;
@ -2086,7 +2086,7 @@ int __init __acpi_probe_device_table(struct acpi_probe_entry *ap_head, int nr)
count++;
}
}
spin_unlock(&acpi_probe_lock);
mutex_unlock(&acpi_probe_mutex);
return count;
}

2
drivers/ata/libahci.c
View File

@ -2524,7 +2524,7 @@ static int ahci_host_activate_multi_irqs(struct ata_host *host,
/* Do not receive interrupts sent by dummy ports */
if (!pp) {
disable_irq(irq + i);
disable_irq(irq);
continue;
}

2
drivers/ata/pata_ninja32.c
View File

@ -144,7 +144,7 @@ static int ninja32_init_one(struct pci_dev *dev, const struct pci_device_id *id)
ap->ioaddr.altstatus_addr = base + 0x1E;
ap->ioaddr.bmdma_addr = base;
ata_sff_std_ports(&ap->ioaddr);
ap->pflags = ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE;
ap->pflags |= ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE;
ninja32_program(base);
/* FIXME: Should we disable them at remove ? */

10
drivers/base/power/runtime.c
View File

@ -301,7 +301,7 @@ static int rpm_idle(struct device *dev, int rpmflags)
int (*callback)(struct device *);
int retval;
trace_rpm_idle(dev, rpmflags);
trace_rpm_idle_rcuidle(dev, rpmflags);
retval = rpm_check_suspend_allowed(dev);
if (retval < 0)
; /* Conditions are wrong. */
@ -337,7 +337,7 @@ static int rpm_idle(struct device *dev, int rpmflags)
dev->power.request_pending = true;
queue_work(pm_wq, &dev->power.work);
}
trace_rpm_return_int(dev, _THIS_IP_, 0);
trace_rpm_return_int_rcuidle(dev, _THIS_IP_, 0);
return 0;
}
@ -352,7 +352,7 @@ static int rpm_idle(struct device *dev, int rpmflags)
wake_up_all(&dev->power.wait_queue);
out:
trace_rpm_return_int(dev, _THIS_IP_, retval);
trace_rpm_return_int_rcuidle(dev, _THIS_IP_, retval);
return retval ? retval : rpm_suspend(dev, rpmflags | RPM_AUTO);
}
@ -601,7 +601,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
struct device *parent = NULL;
int retval = 0;
trace_rpm_resume(dev, rpmflags);
trace_rpm_resume_rcuidle(dev, rpmflags);
repeat:
if (dev->power.runtime_error)
@ -764,7 +764,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
spin_lock_irq(&dev->power.lock);
}
trace_rpm_return_int(dev, _THIS_IP_, retval);
trace_rpm_return_int_rcuidle(dev, _THIS_IP_, retval);
return retval;
}

2
drivers/char/hw_random/Kconfig
View File

@ -244,7 +244,7 @@ config HW_RANDOM_TX4939
config HW_RANDOM_MXC_RNGA
tristate "Freescale i.MX RNGA Random Number Generator"
depends on ARCH_HAS_RNGA
depends on SOC_IMX31
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number

3
drivers/char/tpm/tpm2-cmd.c
View File

@ -957,7 +957,7 @@ int tpm2_auto_startup(struct tpm_chip *chip)
goto out;
rc = tpm2_do_selftest(chip);
if (rc != TPM2_RC_INITIALIZE) {
if (rc != 0 && rc != TPM2_RC_INITIALIZE) {
dev_err(&chip->dev, "TPM self test failed\n");
goto out;
}
@ -974,7 +974,6 @@ int tpm2_auto_startup(struct tpm_chip *chip)
}
}
return rc;
out:
if (rc > 0)
rc = -ENODEV;

9
drivers/clk/renesas/r8a7795-cpg-mssr.c
View File

@ -69,6 +69,7 @@ static const struct cpg_core_clk r8a7795_core_clks[] __initconst = {
DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1),
DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1),
DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1),
DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1),
/* Core Clock Outputs */
DEF_FIXED("ztr", R8A7795_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
@ -87,10 +88,10 @@ static const struct cpg_core_clk r8a7795_core_clks[] __initconst = {
DEF_FIXED("s3d2", R8A7795_CLK_S3D2, CLK_S3, 2, 1),
DEF_FIXED("s3d4", R8A7795_CLK_S3D4, CLK_S3, 4, 1),
DEF_GEN3_SD("sd0", R8A7795_CLK_SD0, CLK_PLL1_DIV2, 0x0074),
DEF_GEN3_SD("sd1", R8A7795_CLK_SD1, CLK_PLL1_DIV2, 0x0078),
DEF_GEN3_SD("sd2", R8A7795_CLK_SD2, CLK_PLL1_DIV2, 0x0268),
DEF_GEN3_SD("sd3", R8A7795_CLK_SD3, CLK_PLL1_DIV2, 0x026c),
DEF_GEN3_SD("sd0", R8A7795_CLK_SD0, CLK_SDSRC, 0x0074),
DEF_GEN3_SD("sd1", R8A7795_CLK_SD1, CLK_SDSRC, 0x0078),
DEF_GEN3_SD("sd2", R8A7795_CLK_SD2, CLK_SDSRC, 0x0268),
DEF_GEN3_SD("sd3", R8A7795_CLK_SD3, CLK_SDSRC, 0x026c),
DEF_FIXED("cl", R8A7795_CLK_CL, CLK_PLL1_DIV2, 48, 1),
DEF_FIXED("cp", R8A7795_CLK_CP, CLK_EXTAL, 2, 1),

11
drivers/clk/rockchip/clk-rk3399.c
View File

@ -833,9 +833,9 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
/* perihp */
GATE(0, "cpll_aclk_perihp_src", "cpll", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(5), 0, GFLAGS),
GATE(0, "gpll_aclk_perihp_src", "gpll", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(5), 1, GFLAGS),
GATE(0, "gpll_aclk_perihp_src", "gpll", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(5), 0, GFLAGS),
COMPOSITE(ACLK_PERIHP, "aclk_perihp", mux_aclk_perihp_p, CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(14), 7, 1, MFLAGS, 0, 5, DFLAGS,
RK3399_CLKGATE_CON(5), 2, GFLAGS),
@ -923,9 +923,9 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
RK3399_CLKGATE_CON(6), 14, GFLAGS),
GATE(0, "cpll_aclk_emmc_src", "cpll", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(6), 12, GFLAGS),
GATE(0, "gpll_aclk_emmc_src", "gpll", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(6), 13, GFLAGS),
GATE(0, "gpll_aclk_emmc_src", "gpll", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(6), 12, GFLAGS),
COMPOSITE_NOGATE(ACLK_EMMC, "aclk_emmc", mux_aclk_emmc_p, CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(21), 7, 1, MFLAGS, 0, 5, DFLAGS),
GATE(ACLK_EMMC_CORE, "aclk_emmccore", "aclk_emmc", CLK_IGNORE_UNUSED,
@ -1071,7 +1071,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
/* vio */
COMPOSITE(ACLK_VIO, "aclk_vio", mux_pll_src_cpll_gpll_ppll_p, CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(42), 6, 2, MFLAGS, 0, 5, DFLAGS,
RK3399_CLKGATE_CON(11), 10, GFLAGS),
RK3399_CLKGATE_CON(11), 0, GFLAGS),
COMPOSITE_NOMUX(PCLK_VIO, "pclk_vio", "aclk_vio", 0,
RK3399_CLKSEL_CON(43), 0, 5, DFLAGS,
RK3399_CLKGATE_CON(11), 1, GFLAGS),
@ -1484,6 +1484,7 @@ static const char *const rk3399_cru_critical_clocks[] __initconst = {
"hclk_perilp1",
"hclk_perilp1_noc",
"aclk_dmac0_perilp",
"aclk_emmc_noc",
"gpll_hclk_perilp1_src",
"gpll_aclk_perilp0_src",
"gpll_aclk_perihp_src",

2
drivers/clk/sunxi-ng/ccu_common.c
View File

@ -31,7 +31,7 @@ void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock)
return;
WARN_ON(readl_relaxed_poll_timeout(common->base + common->reg, reg,
!(reg & lock), 100, 70000));
reg & lock, 100, 70000));
}
int sunxi_ccu_probe(struct device_node *node, void __iomem *reg,

4
drivers/clk/tegra/clk-tegra114.c
View File

@ -428,7 +428,7 @@ static struct tegra_clk_pll_params pll_d_params = {
.div_nmp = &pllp_nmp,
.freq_table = pll_d_freq_table,
.flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_SET_LFCON |
TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
TEGRA_PLL_HAS_LOCK_ENABLE,
};
static struct tegra_clk_pll_params pll_d2_params = {
@ -446,7 +446,7 @@ static struct tegra_clk_pll_params pll_d2_params = {
.div_nmp = &pllp_nmp,
.freq_table = pll_d_freq_table,
.flags = TEGRA_PLL_HAS_CPCON | TEGRA_PLL_SET_LFCON |
TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE,
TEGRA_PLL_HAS_LOCK_ENABLE,
};
static const struct pdiv_map pllu_p[] = {

1
drivers/clocksource/timer-atmel-pit.c
View File

@ -240,6 +240,7 @@ static int __init at91sam926x_pit_common_init(struct pit_data *data)
static int __init at91sam926x_pit_dt_init(struct device_node *node)
{
struct pit_data *data;
int ret;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)

2
drivers/cpufreq/cpufreq-dt-platdev.c
View File

@ -74,6 +74,8 @@ static const struct of_device_id machines[] __initconst = {
{ .compatible = "ti,omap5", },
{ .compatible = "xlnx,zynq-7000", },
{ }
};
static int __init cpufreq_dt_platdev_init(void)

4
drivers/crypto/qat/qat_common/qat_algs.c
View File

@ -1260,8 +1260,8 @@ static struct crypto_alg qat_algs[] = { {
.setkey = qat_alg_ablkcipher_xts_setkey,
.decrypt = qat_alg_ablkcipher_decrypt,
.encrypt = qat_alg_ablkcipher_encrypt,
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
},
},

2
drivers/crypto/vmx/aes_xts.c
View File

@ -129,8 +129,8 @@ static int p8_aes_xts_crypt(struct blkcipher_desc *desc,
blkcipher_walk_init(&walk, dst, src, nbytes);
iv = (u8 *)walk.iv;
ret = blkcipher_walk_virt(desc, &walk);
iv = walk.iv;
memset(tweak, 0, AES_BLOCK_SIZE);
aes_p8_encrypt(iv, tweak, &ctx->tweak_key);

4
drivers/dma/at_xdmac.c
View File

@ -2067,7 +2067,7 @@ err_dma_unregister:
err_clk_disable:
clk_disable_unprepare(atxdmac->clk);
err_free_irq:
free_irq(atxdmac->irq, atxdmac->dma.dev);
free_irq(atxdmac->irq, atxdmac);
return ret;
}
@ -2081,7 +2081,7 @@ static int at_xdmac_remove(struct platform_device *pdev)
dma_async_device_unregister(&atxdmac->dma);
clk_disable_unprepare(atxdmac->clk);
free_irq(atxdmac->irq, atxdmac->dma.dev);
free_irq(atxdmac->irq, atxdmac);
for (i = 0; i < atxdmac->dma.chancnt; i++) {
struct at_xdmac_chan *atchan = &atxdmac->chan[i];

1
drivers/dma/fsl_raid.c
View File

@ -836,6 +836,7 @@ static int fsl_re_probe(struct platform_device *ofdev)
rc = of_property_read_u32(np, "reg", &off);
if (rc) {
dev_err(dev, "Reg property not found in JQ node\n");
of_node_put(np);
return -ENODEV;
}
/* Find out the Job Rings present under each JQ */

4
drivers/dma/img-mdc-dma.c
View File

@ -861,7 +861,6 @@ static int mdc_dma_probe(struct platform_device *pdev)
{
struct mdc_dma *mdma;
struct resource *res;
const struct of_device_id *match;
unsigned int i;
u32 val;
int ret;
@ -871,8 +870,7 @@ static int mdc_dma_probe(struct platform_device *pdev)
return -ENOMEM;
platform_set_drvdata(pdev, mdma);
match = of_match_device(mdc_dma_of_match, &pdev->dev);
mdma->soc = match->data;
mdma->soc = of_device_get_match_data(&pdev->dev);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mdma->regs = devm_ioremap_resource(&pdev->dev, res);

11
drivers/dma/pxa_dma.c
View File

@ -638,7 +638,7 @@ static bool pxad_try_hotchain(struct virt_dma_chan *vc,
vd_last_issued = list_entry(vc->desc_issued.prev,
struct virt_dma_desc, node);
pxad_desc_chain(vd_last_issued, vd);
if (is_chan_running(chan) || is_desc_completed(vd_last_issued))
if (is_chan_running(chan) || is_desc_completed(vd))
return true;
}
@ -671,6 +671,7 @@ static irqreturn_t pxad_chan_handler(int irq, void *dev_id)
struct virt_dma_desc *vd, *tmp;
unsigned int dcsr;
unsigned long flags;
bool vd_completed;
dma_cookie_t last_started = 0;
BUG_ON(!chan);
@ -681,15 +682,17 @@ static irqreturn_t pxad_chan_handler(int irq, void *dev_id)
spin_lock_irqsave(&chan->vc.lock, flags);
list_for_each_entry_safe(vd, tmp, &chan->vc.desc_issued, node) {
vd_completed = is_desc_completed(vd);
dev_dbg(&chan->vc.chan.dev->device,
"%s(): checking txd %p[%x]: completed=%d\n",
__func__, vd, vd->tx.cookie, is_desc_completed(vd));
"%s(): checking txd %p[%x]: completed=%d dcsr=0x%x\n",
__func__, vd, vd->tx.cookie, vd_completed,
dcsr);
last_started = vd->tx.cookie;
if (to_pxad_sw_desc(vd)->cyclic) {
vchan_cyclic_callback(vd);
break;
}
if (is_desc_completed(vd)) {
if (vd_completed) {
list_del(&vd->node);
vchan_cookie_complete(vd);
} else {

17
drivers/dma/sh/usb-dmac.c
View File

@ -600,27 +600,30 @@ static irqreturn_t usb_dmac_isr_channel(int irq, void *dev)
{
struct usb_dmac_chan *chan = dev;
irqreturn_t ret = IRQ_NONE;
u32 mask = USB_DMACHCR_TE;
u32 check_bits = USB_DMACHCR_TE | USB_DMACHCR_SP;
u32 mask = 0;
u32 chcr;
bool xfer_end = false;
spin_lock(&chan->vc.lock);
chcr = usb_dmac_chan_read(chan, USB_DMACHCR);
if (chcr & check_bits)
mask |= USB_DMACHCR_DE | check_bits;
if (chcr & (USB_DMACHCR_TE | USB_DMACHCR_SP)) {
mask |= USB_DMACHCR_DE | USB_DMACHCR_TE | USB_DMACHCR_SP;
if (chcr & USB_DMACHCR_DE)
xfer_end = true;
ret |= IRQ_HANDLED;
}
if (chcr & USB_DMACHCR_NULL) {
/* An interruption of TE will happen after we set FTE */
mask |= USB_DMACHCR_NULL;
chcr |= USB_DMACHCR_FTE;
ret |= IRQ_HANDLED;
}
if (mask)
usb_dmac_chan_write(chan, USB_DMACHCR, chcr & ~mask);
if (chcr & check_bits) {
if (xfer_end)
usb_dmac_isr_transfer_end(chan);
ret |= IRQ_HANDLED;
}
spin_unlock(&chan->vc.lock);

5
drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
View File

@ -280,7 +280,7 @@ void amdgpu_ib_pool_fini(struct amdgpu_device *adev)
int amdgpu_ib_ring_tests(struct amdgpu_device *adev)
{
unsigned i;
int r;
int r, ret = 0;
for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
struct amdgpu_ring *ring = adev->rings[i];
@ -301,10 +301,11 @@ int amdgpu_ib_ring_tests(struct amdgpu_device *adev)
} else {
/* still not good, but we can live with it */
DRM_ERROR("amdgpu: failed testing IB on ring %d (%d).\n", i, r);
ret = r;
}
}
}
return 0;
return ret;
}
/*

3
drivers/gpu/drm/amd/amdgpu/cik_sdma.c
View File

@ -52,6 +52,7 @@ static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev);
static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev);
static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev);
static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev);
static int cik_sdma_soft_reset(void *handle);
MODULE_FIRMWARE("radeon/bonaire_sdma.bin");
MODULE_FIRMWARE("radeon/bonaire_sdma1.bin");
@ -1037,6 +1038,8 @@ static int cik_sdma_resume(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
cik_sdma_soft_reset(handle);
return cik_sdma_hw_init(adev);
}

12
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
View File

@ -2755,8 +2755,7 @@ static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
u64 wb_gpu_addr;
u32 *buf;
struct bonaire_mqd *mqd;
gfx_v7_0_cp_compute_enable(adev, true);
struct amdgpu_ring *ring;
/* fix up chicken bits */
tmp = RREG32(mmCP_CPF_DEBUG);
@ -2791,7 +2790,7 @@ static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
/* init the queues. Just two for now. */
for (i = 0; i < adev->gfx.num_compute_rings; i++) {
struct amdgpu_ring *ring = &adev->gfx.compute_ring[i];
ring = &adev->gfx.compute_ring[i];
if (ring->mqd_obj == NULL) {
r = amdgpu_bo_create(adev,
@ -2970,6 +2969,13 @@ static int gfx_v7_0_cp_compute_resume(struct amdgpu_device *adev)
amdgpu_bo_unreserve(ring->mqd_obj);
ring->ready = true;
}
gfx_v7_0_cp_compute_enable(adev, true);
for (i = 0; i < adev->gfx.num_compute_rings; i++) {
ring = &adev->gfx.compute_ring[i];
r = amdgpu_ring_test_ring(ring);
if (r)
ring->ready = false;

26
drivers/gpu/drm/imx/imx-drm-core.c
View File

@ -171,10 +171,34 @@ static void imx_drm_output_poll_changed(struct drm_device *drm)
drm_fbdev_cma_hotplug_event(imxdrm->fbhelper);
}
static int imx_drm_atomic_check(struct drm_device *dev,
struct drm_atomic_state *state)
{
int ret;
ret = drm_atomic_helper_check_modeset(dev, state);
if (ret)
return ret;
ret = drm_atomic_helper_check_planes(dev, state);
if (ret)
return ret;
/*
* Check modeset again in case crtc_state->mode_changed is
* updated in plane's ->atomic_check callback.
*/
ret = drm_atomic_helper_check_modeset(dev, state);
if (ret)
return ret;
return ret;
}
static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
.fb_create = drm_fb_cma_create,
.output_poll_changed = imx_drm_output_poll_changed,
.atomic_check = drm_atomic_helper_check,
.atomic_check = imx_drm_atomic_check,
.atomic_commit = drm_atomic_helper_commit,
};

4
drivers/gpu/drm/imx/ipuv3-crtc.c
View File

@ -76,6 +76,8 @@ static void ipu_crtc_disable(struct drm_crtc *crtc)
crtc->state->event = NULL;
}
spin_unlock_irq(&crtc->dev->event_lock);
drm_crtc_vblank_off(crtc);
}
static void imx_drm_crtc_reset(struct drm_crtc *crtc)
@ -175,6 +177,8 @@ static int ipu_crtc_atomic_check(struct drm_crtc *crtc,
static void ipu_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
drm_crtc_vblank_on(crtc);
spin_lock_irq(&crtc->dev->event_lock);
if (crtc->state->event) {
WARN_ON(drm_crtc_vblank_get(crtc));

17
drivers/gpu/drm/imx/ipuv3-plane.c
View File

@ -319,13 +319,14 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
return -EINVAL;
/*
* since we cannot touch active IDMAC channels, we do not support
* resizing the enabled plane or changing its format
* We support resizing active plane or changing its format by
* forcing CRTC mode change and disabling-enabling plane in plane's
* ->atomic_update callback.
*/
if (old_fb && (state->src_w != old_state->src_w ||
state->src_h != old_state->src_h ||
fb->pixel_format != old_fb->pixel_format))
return -EINVAL;
crtc_state->mode_changed = true;
eba = drm_plane_state_to_eba(state);
@ -336,7 +337,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
return -EINVAL;
if (old_fb && fb->pitches[0] != old_fb->pitches[0])
return -EINVAL;
crtc_state->mode_changed = true;
switch (fb->pixel_format) {
case DRM_FORMAT_YUV420:
@ -372,7 +373,7 @@ static int ipu_plane_atomic_check(struct drm_plane *plane,
return -EINVAL;
if (old_fb && old_fb->pitches[1] != fb->pitches[1])
return -EINVAL;
crtc_state->mode_changed = true;
}
return 0;
@ -392,10 +393,16 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
enum ipu_color_space ics;
if (old_state->fb) {
struct drm_crtc_state *crtc_state = state->crtc->state;
if (!crtc_state->mode_changed) {
ipu_plane_atomic_set_base(ipu_plane, old_state);
return;
}
ipu_disable_plane(plane);
}
switch (ipu_plane->dp_flow) {
case IPU_DP_FLOW_SYNC_BG:
ipu_dp_setup_channel(ipu_plane->dp,

6
drivers/gpu/drm/msm/msm_drv.h
View File

@ -157,6 +157,12 @@ struct msm_drm_private {
struct shrinker shrinker;
struct msm_vblank_ctrl vblank_ctrl;
/* task holding struct_mutex.. currently only used in submit path
* to detect and reject faults from copy_from_user() for submit
* ioctl.
*/
struct task_struct *struct_mutex_task;
};
struct msm_format {

9
drivers/gpu/drm/msm/msm_gem.c
View File

@ -196,11 +196,20 @@ int msm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct drm_gem_object *obj = vma->vm_private_data;
struct drm_device *dev = obj->dev;
struct msm_drm_private *priv = dev->dev_private;
struct page **pages;
unsigned long pfn;
pgoff_t pgoff;
int ret;
/* This should only happen if userspace tries to pass a mmap'd
* but unfaulted gem bo vaddr into submit ioctl, triggering
* a page fault while struct_mutex is already held. This is
* not a valid use-case so just bail.
*/
if (priv->struct_mutex_task == current)
return VM_FAULT_SIGBUS;
/* Make sure we don't parallel update on a fault, nor move or remove
* something from beneath our feet
*/

28
drivers/gpu/drm/msm/msm_gem_submit.c
View File

@ -64,6 +64,14 @@ void msm_gem_submit_free(struct msm_gem_submit *submit)
kfree(submit);
}
static inline unsigned long __must_check
copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
{
if (access_ok(VERIFY_READ, from, n))
return __copy_from_user_inatomic(to, from, n);
return -EFAULT;
}
static int submit_lookup_objects(struct msm_gem_submit *submit,
struct drm_msm_gem_submit *args, struct drm_file *file)
{
@ -71,6 +79,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
int ret = 0;
spin_lock(&file->table_lock);
pagefault_disable();
for (i = 0; i < args->nr_bos; i++) {
struct drm_msm_gem_submit_bo submit_bo;
@ -84,10 +93,15 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
*/
submit->bos[i].flags = 0;
ret = copy_from_user_inatomic(&submit_bo, userptr, sizeof(submit_bo));
if (unlikely(ret)) {
pagefault_enable();
spin_unlock(&file->table_lock);
ret = copy_from_user(&submit_bo, userptr, sizeof(submit_bo));
if (ret) {
ret = -EFAULT;
goto out_unlock;
if (ret)
goto out;
spin_lock(&file->table_lock);
pagefault_disable();
}
if (submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) {
@ -127,9 +141,12 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
}
out_unlock:
submit->nr_bos = i;
pagefault_enable();
spin_unlock(&file->table_lock);
out:
submit->nr_bos = i;
return ret;
}
@ -377,6 +394,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
if (ret)
return ret;
priv->struct_mutex_task = current;
submit = submit_create(dev, gpu, args->nr_bos, args->nr_cmds);
if (!submit) {
ret = -ENOMEM;
@ -468,6 +487,7 @@ out:
if (ret)
msm_gem_submit_free(submit);
out_unlock:
priv->struct_mutex_task = NULL;
mutex_unlock(&dev->struct_mutex);
return ret;
}

11
drivers/gpu/drm/nouveau/nouveau_acpi.c
View File

@ -225,6 +225,17 @@ static bool nouveau_pr3_present(struct pci_dev *pdev)
if (!parent_pdev)
return false;
if (!parent_pdev->bridge_d3) {
/*
* Parent PCI bridge is currently not power managed.
* Since userspace can change these afterwards to be on
* the safe side we stick with _DSM and prevent usage of
* _PR3 from the bridge.
*/
pci_d3cold_disable(pdev);
return false;
}
parent_adev = ACPI_COMPANION(&parent_pdev->dev);
if (!parent_adev)
return false;

6
drivers/gpu/drm/vc4/vc4_drv.c
View File

@ -57,21 +57,21 @@ static int vc4_get_param_ioctl(struct drm_device *dev, void *data,
switch (args->param) {
case DRM_VC4_PARAM_V3D_IDENT0:
ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
if (ret)
if (ret < 0)
return ret;
args->value = V3D_READ(V3D_IDENT0);
pm_runtime_put(&vc4->v3d->pdev->dev);
break;
case DRM_VC4_PARAM_V3D_IDENT1:
ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
if (ret)
if (ret < 0)
return ret;
args->value = V3D_READ(V3D_IDENT1);
pm_runtime_put(&vc4->v3d->pdev->dev);
break;
case DRM_VC4_PARAM_V3D_IDENT2:
ret = pm_runtime_get_sync(&vc4->v3d->pdev->dev);
if (ret)
if (ret < 0)
return ret;
args->value = V3D_READ(V3D_IDENT2);
pm_runtime_put(&vc4->v3d->pdev->dev);

9
drivers/gpu/drm/vc4/vc4_drv.h
View File

@ -321,6 +321,15 @@ vc4_first_render_job(struct vc4_dev *vc4)
struct vc4_exec_info, head);
}
static inline struct vc4_exec_info *
vc4_last_render_job(struct vc4_dev *vc4)
{
if (list_empty(&vc4->render_job_list))
return NULL;
return list_last_entry(&vc4->render_job_list,
struct vc4_exec_info, head);
}
/**
* struct vc4_texture_sample_info - saves the offsets into the UBO for texture
* setup parameters.

18
drivers/gpu/drm/vc4/vc4_gem.c
View File

@ -534,8 +534,8 @@ vc4_cl_lookup_bos(struct drm_device *dev,
return -EINVAL;
}
exec->bo = kcalloc(exec->bo_count, sizeof(struct drm_gem_cma_object *),
GFP_KERNEL);
exec->bo = drm_calloc_large(exec->bo_count,
sizeof(struct drm_gem_cma_object *));
if (!exec->bo) {
DRM_ERROR("Failed to allocate validated BO pointers\n");
return -ENOMEM;
@ -572,8 +572,8 @@ vc4_cl_lookup_bos(struct drm_device *dev,
spin_unlock(&file_priv->table_lock);
fail:
kfree(handles);
return 0;
drm_free_large(handles);
return ret;
}
static int
@ -608,7 +608,7 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
* read the contents back for validation, and I think the
* bo->vaddr is uncached access.
*/
temp = kmalloc(temp_size, GFP_KERNEL);
temp = drm_malloc_ab(temp_size, 1);
if (!temp) {
DRM_ERROR("Failed to allocate storage for copying "
"in bin/render CLs.\n");
@ -675,7 +675,7 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
ret = vc4_validate_shader_recs(dev, exec);
fail:
kfree(temp);
drm_free_large(temp);
return ret;
}
@ -688,7 +688,7 @@ vc4_complete_exec(struct drm_device *dev, struct vc4_exec_info *exec)
if (exec->bo) {
for (i = 0; i < exec->bo_count; i++)
drm_gem_object_unreference_unlocked(&exec->bo[i]->base);
kfree(exec->bo);
drm_free_large(exec->bo);
}
while (!list_empty(&exec->unref_list)) {
@ -942,8 +942,8 @@ vc4_gem_destroy(struct drm_device *dev)
vc4->overflow_mem = NULL;
}
vc4_bo_cache_destroy(dev);
if (vc4->hang_state)
vc4_free_hang_state(dev, vc4->hang_state);
vc4_bo_cache_destroy(dev);
}

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