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x86/irq: Remove x86_io_apic_ops.write and x86_io_apic_ops.modify 

x86_io_apic_ops.write is always set to native_io_apic_write(),
and nobody overrides it. So get rid of the indirection by changing
native_io_apic_write() as io_apic_write() and removing
x86_io_apic_ops.write.

Do the same for x86_io_apic_ops.modify and native_io_apic_modify().

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Tested-by: Joerg Roedel <jroedel@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Cc: Grant Likely <grant.likely@linaro.org>
Link: http://lkml.kernel.org/r/1428978610-28986-19-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2015-04-14 10:29:55 +08:00 committed by Thomas Gleixner
parent 50a6ad84b2
commit 9a93d4736e
4 changed files with 4 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/x86/include/asm/io_apic.h
View File

@ -208,8 +208,6 @@ extern void disable_ioapic_support(void);
extern void __init native_io_apic_init_mappings(void);
extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg);
extern void native_io_apic_write(unsigned int apic, unsigned int reg, unsigned int val);
extern void native_io_apic_modify(unsigned int apic, unsigned int reg, unsigned int val);
extern void native_disable_io_apic(void);
static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
@ -217,15 +215,6 @@ static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
return x86_io_apic_ops.read(apic, reg);
}
static inline void io_apic_write(unsigned int apic, unsigned int reg, unsigned int value)
{
x86_io_apic_ops.write(apic, reg, value);
}
static inline void io_apic_modify(unsigned int apic, unsigned int reg, unsigned int value)
{
x86_io_apic_ops.modify(apic, reg, value);
}
extern void setup_IO_APIC(void);
extern void enable_IO_APIC(void);
extern void disable_IO_APIC(void);
@ -266,8 +255,6 @@ static inline void mp_save_irq(struct mpc_intsrc *m) { };
static inline void disable_ioapic_support(void) { }
#define native_io_apic_init_mappings NULL
#define native_io_apic_read NULL
#define native_io_apic_write NULL
#define native_io_apic_modify NULL
#define native_disable_io_apic NULL
static inline void setup_IO_APIC(void) { }

2
arch/x86/include/asm/x86_init.h
View File

@ -182,8 +182,6 @@ struct x86_msi_ops {
struct x86_io_apic_ops {
void (*init) (void);
unsigned int (*read) (unsigned int apic, unsigned int reg);
void (*write) (unsigned int apic, unsigned int reg, unsigned int value);
void (*modify) (unsigned int apic, unsigned int reg, unsigned int value);
void (*disable)(void);
};

6
arch/x86/kernel/apic/io_apic.c
View File

@ -280,7 +280,8 @@ unsigned int native_io_apic_read(unsigned int apic, unsigned int reg)
return readl(&io_apic->data);
}
void native_io_apic_write(unsigned int apic, unsigned int reg, unsigned int value)
static void io_apic_write(unsigned int apic, unsigned int reg,
unsigned int value)
{
struct io_apic __iomem *io_apic = io_apic_base(apic);
@ -294,7 +295,8 @@ void native_io_apic_write(unsigned int apic, unsigned int reg, unsigned int valu
*
* Older SiS APIC requires we rewrite the index register
*/
void native_io_apic_modify(unsigned int apic, unsigned int reg, unsigned int value)
static void io_apic_modify(unsigned int apic, unsigned int reg,
unsigned int value)
{
struct io_apic __iomem *io_apic = io_apic_base(apic);

2
arch/x86/kernel/x86_init.c
View File

@ -141,7 +141,5 @@ void arch_restore_msi_irqs(struct pci_dev *dev)
struct x86_io_apic_ops x86_io_apic_ops = {
.init = native_io_apic_init_mappings,
.read = native_io_apic_read,
.write = native_io_apic_write,
.modify = native_io_apic_modify,
.disable = native_disable_io_apic,
};