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OpenCloudOS-Kernel
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Thomas Zimmermann 340bbe90cc fbdev: vesafb: Detect VGA compatibility from screen info's VESA attributes 
[ Upstream commit c2bc958b2b03e361f14df99983bc64a39a7323a3 ]

Test the vesa_attributes field in struct screen_info for compatibility
with VGA hardware. Vesafb currently tests bit 1 in screen_info's
capabilities field which indicates a 64-bit lfb address and is
unrelated to VGA compatibility.

Section 4.4 of the Vesa VBE 2.0 specifications defines that bit 5 in
the mode's attributes field signals VGA compatibility. The mode is
compatible with VGA hardware if the bit is clear. In that case, the
driver can access VGA state of the VBE's underlying hardware. The
vesafb driver uses this feature to program the color LUT in palette
modes. Without, colors might be incorrect.

The problem got introduced in commit 89ec4c238e ("[PATCH] vesafb: Fix
incorrect logo colors in x86_64"). It incorrectly stores the mode
attributes in the screen_info's capabilities field and updates vesafb
accordingly. Later, commit 5e8ddcbe86 ("Video mode probing support for
the new x86 setup code") fixed the screen_info, but did not update vesafb.
Color output still tends to work, because bit 1 in capabilities is
usually 0.

Besides fixing the bug in vesafb, this commit introduces a helper that
reads the correct bit from screen_info.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 5e8ddcbe86 ("Video mode probing support for the new x86 setup code")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Cc: <stable@vger.kernel.org> # v2.6.23+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-08-11 12:47:16 +02:00
..
accel kthread: add kthread_stop_put 2024-06-12 11:12:52 +02:00
accessibility speakup: Fix sizeof() vs ARRAY_SIZE() bug 2024-06-12 11:11:18 +02:00
acpi ACPI: EC: Avoid returning AE_OK on errors in address space handler 2024-07-25 09:50:40 +02:00
amba
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android binder: fix hang of unregistered readers 2024-08-03 08:54:21 +02:00
ata ata: libata-scsi: Honor the D_SENSE bit for CK_COND=1 and no error 2024-08-03 08:54:15 +02:00
atm
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auxdisplay auxdisplay: ht16k33: Drop reference after LED registration 2024-08-03 08:54:39 +02:00
base devres: Fix memory leakage caused by driver API devm_free_percpu() 2024-08-03 08:54:25 +02:00
bcma
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block rbd: don't assume RBD_LOCK_STATE_LOCKED for exclusive mappings 2024-08-03 08:54:32 +02:00
bluetooth Bluetooth: btusb: Add Realtek RTL8852BE support ID 0x13d3:0x3591 2024-08-03 08:54:33 +02:00
bus bus: mhi: host: Add MHI_PM_SYS_ERR_FAIL state 2024-04-13 13:07:38 +02:00
cache cache: ax45mp_cache: Align end size to cache boundary in ax45mp_dma_cache_wback() 2024-03-01 13:35:08 +01:00
cdrom cdrom: rearrange last_media_change check to avoid unintentional overflow 2024-07-11 12:49:10 +02:00
cdx
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char hwrng: amd - Convert PCIBIOS_* return codes to errnos 2024-08-03 08:54:21 +02:00
clk clk: davinci: da8xx-cfgchip: Initialize clk_init_data before use 2024-08-03 08:54:23 +02:00
clocksource clocksource/drivers/arm_global_timer: Fix maximum prescaler value 2024-04-03 15:28:50 +02:00
comedi comedi: vmk80xx: fix incomplete endpoint checking 2024-04-27 17:11:39 +02:00
connector
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counter counter: ti-eqep: enable clock at probe 2024-07-05 09:33:56 +02:00
cpufreq cpufreq: qcom-nvmem: fix memory leaks in probe error paths 2024-08-11 12:47:14 +02:00
cpuidle cpuidle: Avoid potential overflow in integer multiplication 2024-04-13 13:07:29 +02:00
crypto crypto: qat - extend scope of lock in adf_cfg_add_key_value_param() 2024-08-03 08:54:01 +02:00
cxl cxl/region: check interleave capability 2024-07-05 09:34:07 +02:00
dax
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dca
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devfreq
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dio
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dma dmaengine: ti: k3-udma: Fix BCHAN count with UHC and HC channels 2024-08-03 08:54:34 +02:00
dma-buf dma-buf: handle testing kthreads creation failure 2024-06-21 14:38:40 +02:00
edac EDAC, i10nm: make skx_common.o a separate module 2024-08-03 08:53:19 +02:00
eisa
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extcon extcon: max8997: select IRQ_DOMAIN instead of depending on it 2024-06-12 11:12:27 +02:00
firewire firewire: ohci: fulfill timestamp for some local asynchronous transaction 2024-05-17 12:02:30 +02:00
firmware firmware/sysfb: Update screen_info for relocated EFI framebuffers 2024-08-11 12:47:16 +02:00
fpga fpga: region: add owner module and take its refcount 2024-06-12 11:12:23 +02:00
fsi
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gnss
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gpio gpio: pca953x: fix pca953x_irq_bus_sync_unlock race 2024-07-25 09:50:50 +02:00
gpu drm/panfrost: Mark simple_ondemand governor as softdep 2024-08-03 08:54:32 +02:00
greybus greybus: Fix use-after-free bug in gb_interface_release due to race condition. 2024-06-21 14:38:48 +02:00
hid HID: Ignore battery for ELAN touchscreens 2F2C and 4116 2024-07-25 09:50:44 +02:00
hsi
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hte
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hv Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted 2024-05-17 12:02:17 +02:00
hwmon hwmon: (max6697) Fix swapped temp{1,8} critical alarms 2024-08-03 08:53:23 +02:00
hwspinlock
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hwtracing coresight: Fix ref leak when of_coresight_parse_endpoint() fails 2024-08-03 08:53:57 +02:00
i2c i2c: rcar: fix error code in probe() 2024-07-18 13:21:27 +02:00
i3c i3c: master: svc: fix invalidate IBI type and miss call client IBI handler 2024-06-16 13:47:46 +02:00
idle
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iio iio: frequency: adrf6780: rm clk provider include 2024-08-03 08:53:56 +02:00
infiniband RDMA/iwcm: Fix a use-after-free related to destroying CM IDs 2024-08-03 08:54:30 +02:00
input Input: elan_i2c - do not leave interrupt disabled on suspend failure 2024-08-03 08:54:00 +02:00
interconnect interconnect: qcom: qcm2290: Fix mas_snoc_bimc RPM master ID 2024-08-03 08:53:58 +02:00
iommu iommu: sprd: Avoid NULL deref in sprd_iommu_hw_en 2024-08-03 08:54:41 +02:00
ipack
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irqchip irqchip/imx-irqsteer: Handle runtime power management correctly 2024-08-03 08:54:25 +02:00
isdn mISDN: Fix a use after free in hfcmulti_tx() 2024-08-03 08:54:38 +02:00
leds leds: triggers: Flush pending brightness before activating trigger 2024-08-11 12:47:14 +02:00
macintosh macintosh/therm_windtunnel: fix module unload. 2024-08-03 08:54:02 +02:00
mailbox
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mcb
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md dm-verity: fix dm_is_verity_target() when dm-verity is builtin 2024-08-03 08:54:30 +02:00
media lirc: rc_dev_get_from_fd(): fix file leak 2024-08-03 08:54:38 +02:00
memory memory: fsl_ifc: Make FSL_IFC config visible and selectable 2024-08-03 08:53:27 +02:00
memstick
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message
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mfd mfd: omap-usb-tll: Use struct_size to allocate tll 2024-08-03 08:53:54 +02:00
misc mei: demote client disconnect warning on suspend to debug 2024-07-25 09:50:45 +02:00
mmc mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro() 2024-07-05 09:33:55 +02:00
most
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mtd ubi: eba: properly rollback inside self_check_eba 2024-08-03 08:54:23 +02:00
mux
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net net: stmmac: Correct byte order of perfect_match 2024-08-03 08:54:38 +02:00
nfc nfc/nci: Add the inconsistency check between the input data length and count 2024-07-11 12:49:21 +02:00
ntb NTB: fix possible name leak in ntb_register_device() 2024-03-26 18:19:48 -04:00
nubus
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nvdimm
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nvme nvme-pci: add missing condition check for existence of mapped data 2024-08-03 08:54:41 +02:00
nvmem nvmem: rockchip-otp: set add_legacy_fixed_of_cells config option 2024-08-03 08:54:01 +02:00
of of/irq: Disable "interrupt-map" parsing for PASEMI Nemo 2024-07-25 09:50:57 +02:00
opp OPP: ti: Fix ti_opp_supply_probe wrong return values 2024-08-03 08:53:27 +02:00
parisc
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parport dev/parport: fix the array out-of-bounds risk 2024-08-03 08:54:22 +02:00
pci PCI: Add pci_get_base_class() helper 2024-08-11 12:47:15 +02:00
pcmcia
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peci
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perf drivers/perf: riscv: Reset the counter to hpmevent mapping while starting cpus 2024-07-25 09:50:55 +02:00
phy phy: zynqmp: Enable reference clock correctly 2024-08-03 08:54:35 +02:00
pinctrl pinctrl: renesas: r8a779g0: Fix TPU suffixes 2024-08-03 08:54:09 +02:00
platform platform: mips: cpu_hwmon: Disable driver on unsupported hardware 2024-08-03 08:54:30 +02:00
pmdomain pmdomain: qcom: rpmhpd: Skip retention level for Power Domains 2024-07-18 13:21:22 +02:00
pnp
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power power: supply: cros_usbpd: provide ID table for avoiding fallback match 2024-06-27 13:49:03 +02:00
powercap powercap: intel_rapl_tpmi: Fix System Domain probing 2024-04-03 15:28:19 +02:00
pps
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ps3
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ptp ptp: fix integer overflow in max_vclocks_store 2024-06-27 13:49:07 +02:00
pwm pwm: atmel-tcb: Fix race condition and convert to guards 2024-08-03 08:53:23 +02:00
rapidio
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ras
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regulator regulator: bd71815: fix ramp values 2024-06-27 13:49:09 +02:00
remoteproc remoteproc: imx_rproc: Fix refcount mistake in imx_rproc_addr_init 2024-08-03 08:54:31 +02:00
reset
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rpmsg
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rtc rtc: abx80x: Fix return value of nvmem callback on read 2024-08-03 08:54:29 +02:00
s390 s390/dasd: fix error checks in dasd_copy_pair_store() 2024-08-03 08:54:10 +02:00
sbus
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scsi minmax: scsi: fix mis-use of 'clamp()' in sr.c 2024-08-03 08:54:33 +02:00
sh
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siox
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slimbus slimbus: qcom-ngd-ctrl: Add timeout for wait operation 2024-05-17 12:02:33 +02:00
soc drivers: soc: xilinx: check return status of get_api_version() 2024-08-03 08:54:18 +02:00
soundwire soundwire: cadence: fix invalid PDI offset 2024-06-12 11:12:15 +02:00
spi spi: spidev: add correct compatible for Rohm BH2228FV 2024-08-03 08:54:40 +02:00
spmi spmi: hisi-spmi-controller: Do not override device identifier 2024-06-21 14:38:40 +02:00
ssb ssb: Fix potential NULL pointer dereference in ssb_device_uevent() 2024-06-27 13:49:01 +02:00
staging greybus: arche-ctrl: move device table to its right location 2024-06-12 11:12:17 +02:00
target scsi: target: Fix SELinux error when systemd-modules loads the target module 2024-05-17 12:02:15 +02:00
tc
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tee tee: optee: ffa: Fix missing-field-initializers warning 2024-07-25 09:50:53 +02:00
thermal thermal/drivers/broadcom: Fix race between removal and clock disable 2024-08-11 12:47:12 +02:00
thunderbolt thunderbolt: debugfs: Fix margin debugfs node creation condition 2024-06-21 14:38:25 +02:00
tty tty: serial: ma35d1: Add a NULL check for of_node 2024-07-18 13:21:21 +02:00
ufs scsi: ufs: mcq: Fix missing argument 'hba' in MCQ_OPR_OFFSET_n 2024-08-03 08:53:56 +02:00
uio uio_hv_generic: Don't free decrypted memory 2024-05-17 12:02:17 +02:00
usb usb: typec-mux: nb7vpq904m: unregister typec switch on probe error and remove 2024-08-03 08:53:57 +02:00
vdpa vduse: Temporarily fail if control queue feature requested 2024-07-05 09:33:50 +02:00
vfio vfio/pci: Init the count variable in collecting hot-reset devices 2024-07-18 13:21:10 +02:00
vhost vhost/vsock: always initialize seqpacket_allow 2024-08-03 08:54:01 +02:00
video fbdev: vesafb: Detect VGA compatibility from screen info's VESA attributes 2024-08-11 12:47:16 +02:00
virt drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map() 2024-06-12 11:12:09 +02:00
virtio virtio: delete vq in vp_find_vqs_msix() when request_irq() fails 2024-06-12 11:12:49 +02:00
vlynq
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w1 nvmem: add explicit config option to read old syntax fixed OF cells 2024-05-17 12:01:55 +02:00
watchdog watchdog: rzg2l_wdt: Check return status of pm_runtime_put() 2024-08-03 08:54:35 +02:00
xen drivers/xen: Improve the late XenStore init protocol 2024-06-12 11:12:51 +02:00
zorro
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Kconfig
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Makefile
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