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f75df8d4b4
linux/drivers/video/fbdev
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Peter Rosin f75df8d4b4 fbdev: fbmem: behave better with small rotated displays and many CPUs 
Blitting an image with "negative" offsets is not working since there
is no clipping. It hopefully just crashes. For the bootup logo, there
is protection so that blitting does not happen as the image is drawn
further and further to the right (ROTATE_UR) or further and further
down (ROTATE_CW). There is however no protection when drawing in the
opposite directions (ROTATE_UD and ROTATE_CCW).

Add back this protection.

The regression is 20-odd years old but the mindless warning-killing
mentality displayed in commit 34bdb666f4 ("fbdev: fbmem: remove
positive test on unsigned values") is also to blame, methinks.

Fixes: 448d479747 ("fbdev: fb_do_show_logo() updates")
Signed-off-by: Peter Rosin <peda@axentia.se>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Fabian Frederick <ffrederick@users.sourceforge.net>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
cc: Geoff Levand <geoff@infradead.org>
Cc: James Simmons <jsimmons@users.sf.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-12-20 19:13:07 +01:00
..
aty atyfb: fix debugging printks 2018-10-08 12:57:35 +02:00
core fbdev: fbmem: behave better with small rotated displays and many CPUs 2018-12-20 19:13:07 +01:00
geode x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping 2018-02-15 01:15:52 +01:00
i810 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intelfb video: fbdev: intelfb: deprecate pci_get_bus_and_slot() 2018-01-17 08:16:46 -06:00
kyro video: fbdev: kyro: constify pci_device_id. 2017-08-01 17:20:42 +02:00
matrox video: matroxfb: Delete an error message for a failed memory allocation in matroxfb_crtc2_probe() 2018-03-28 16:34:28 +02:00
mb862xx treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
mbx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmp video: fbdev: remove redundant 'default n' from Kconfig-s 2018-10-24 11:26:32 +02:00
nvidia fbdev changes for v4.18: 2018-06-17 05:00:24 +09:00
omap video: fbdev: omapfb: lcd_ams_delta: use GPIO lookup table 2018-10-08 12:57:36 +02:00
omap2 video: fbdev: remove redundant 'default n' from Kconfig-s 2018-10-24 11:26:32 +02:00
riva treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
savage video: fbdev: savage: Replace mdelay with usleep_range in savage_init_hw 2018-04-24 18:11:21 +02:00
sis video: fbdev: sis: Remove unnecessary parentheses and commented code 2018-10-08 12:57:36 +02:00
vermilion video: fbdev: vermilion: use 64-bit arithmetic instead of 32-bit 2018-03-12 17:06:54 +01:00
via video: fbdev: mark expected switch fall-throughs 2018-07-24 19:11:28 +02:00
68328fb.c video: fbdev: annotate fb_fix_screeninfo with const and __initconst 2017-09-04 16:00:49 +02:00
acornfb.c drivers/video/fbdev: Fixing coding guidelines in acornfb.c 2017-04-07 17:03:24 +02:00
acornfb.h
amba-clcd-nomadik.c fbdev changes for v4.11: 2017-02-25 13:20:22 -08:00
amba-clcd-nomadik.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amba-clcd-versatile.c video: ARM CLCD: use panel device node for panel initialization 2017-01-30 17:39:48 +01:00
amba-clcd-versatile.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amba-clcd.c video: ARM CLCD: Improve a size determination in clcdfb_probe() 2018-03-28 16:34:29 +02:00
amifb.c fb: amifb: fix build warnings when not builtin 2018-07-31 13:06:58 +02:00
arcfb.c video: fbdev: arcfb: mark expected switch fall-through 2018-10-08 12:57:37 +02:00
arkfb.c video: fbdev: arkfb: constify pci_device_id. 2017-08-01 17:20:42 +02:00
asiliantfb.c video: fbdev: asiliantfb: constify pci_device_id. 2017-08-01 17:20:41 +02:00
atafb_iplan2p2.c
atafb_iplan2p4.c
atafb_iplan2p8.c
atafb_mfb.c
atafb_utils.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atafb.c
atafb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel_lcdfb.c atmel_lcdfb: support native-mode display-timings 2018-10-08 12:57:35 +02:00
au1100fb.c fbdev changes for v4.18: 2018-06-17 05:00:24 +09:00
au1100fb.h
au1200fb.c video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer" 2018-05-15 12:41:11 +02:00
au1200fb.h fbdev: au1200fb: delete duplicate header contents 2018-01-04 16:53:49 +01:00
broadsheetfb.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
bt431.h
bt455.h
bw2.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
c2p_core.h
c2p_iplan2.c
c2p_planar.c
c2p.h
carminefb_regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
carminefb.c
carminefb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cg3.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
cg6.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
cg14.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
chipsfb.c drivers/video/fbdev: use ioremap_wc/wt() instead of __ioremap() 2018-10-13 23:52:45 +11:00
cirrusfb.c video: fbdev: cirrusfb: mark expected switch fall-throughs 2017-11-09 18:09:32 +01:00
clps711x-fb.c video: clps711x-fb: release disp device node in probe() 2018-12-20 19:13:07 +01:00
cobalt_lcdfb.c video: cobalt_lcdfb: constify fb_fix_screeninfo structure 2017-08-01 17:20:39 +02:00
controlfb.c drivers/video/fbdev: use ioremap_wc/wt() instead of __ioremap() 2018-10-13 23:52:45 +11:00
controlfb.h fbdev: controlfb: Add missing modes to fix out of bounds access 2017-11-09 18:09:33 +01:00
cyber2000fb.c video: fbdev: make fb_videomode const 2017-09-04 16:00:49 +02:00
cyber2000fb.h
da8xx-fb.c fbdev: da8xx-fb: Drop unnecessary static 2017-08-01 17:20:39 +02:00
dnfb.c video/fbdev/dnfb: Use common error handling code in dnfb_probe() 2017-11-09 18:09:31 +01:00
edid.h
efifb.c efifb: BGRT: Add nobgrt option 2018-09-26 18:11:22 +02:00
ep93xx-fb.c
fb-puv3.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
ffb.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
fm2fb.c video: fm2fb: constify zorro_device_id 2017-09-04 16:00:49 +02:00
fsl-diu-fb.c fbdev: fsl-diu: get cpu node with of_get_cpu_node 2018-09-28 14:25:58 -05:00
g364fb.c
gbefb.c
goldfishfb.c video: goldfishfb: fix memory leak on driver remove 2018-07-24 19:11:27 +02:00
grvga.c video: fbdev: annotate fb_fix_screeninfo with const and __initconst 2017-09-04 16:00:49 +02:00
gxt4500.c
hecubafb.c
hgafb.c
hitfb.c
hpfb.c hpfb: use probe_kernel_read() 2017-05-27 15:41:17 -04:00
hyperv_fb.c use the new async probing feature for the hyperv drivers 2018-07-03 13:02:28 +02:00
i740_reg.h
i740fb.c video: fbdev: mark expected switch fall-throughs 2018-07-24 19:11:28 +02:00
imsttfb.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
imxfb.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
jz4740_fb.c fbdev: jz4740-fb: Let the pinctrl driver configure the pins 2017-05-22 17:22:06 +02:00
Kconfig fbdev: make FB_BACKLIGHT a tristate 2018-12-20 19:13:07 +01:00
leo.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
macfb.c nubus: Adopt standard linked list implementation 2018-01-16 16:47:29 +01:00
macmodes.c
macmodes.h
Makefile video: fbdev: remove dead old CLPS711x LCD support driver 2018-10-24 11:26:32 +02:00
maxinefb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
metronomefb.c video: fbdev: metronomefb: fix some off by one bugs 2018-07-24 19:11:26 +02:00
mx3fb.c
mxsfb.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
n411.c Annotate hardware config module parameters in drivers/video/ 2017-04-20 12:02:32 +01:00
neofb.c video: fbdev: neofb: constify pci_device_id. 2017-08-01 17:20:44 +02:00
nuc900fb.c
nuc900fb.h
ocfb.c
offb.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
p9100.c fbdev: Convert to using %pOFn instead of device_node.name 2018-10-08 12:57:36 +02:00
platinumfb.c drivers/video/fbdev: use ioremap_wc/wt() instead of __ioremap() 2018-10-13 23:52:45 +11:00
platinumfb.h
pm2fb.c video: fbdev: mark expected switch fall-throughs 2018-07-24 19:11:28 +02:00
pm3fb.c video: fbdev: pm3fb: constify pci_device_id. 2017-08-01 17:20:45 +02:00
pmag-aa-fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
pmag-ba-fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
pmagb-b-fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
ps3fb.c video: fbdev: annotate fb_fix_screeninfo with const and __initconst 2017-09-04 16:00:49 +02:00
pvr2fb.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
pxa3xx-gcu.c video: fbdev: pxa3xx_gcu: add devicetree bindings 2018-07-24 19:11:25 +02:00
pxa3xx-gcu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pxa168fb.c pxa168fb: remove set but not used variables 'mi' 2018-10-08 12:57:37 +02:00
pxa168fb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pxafb.c video: fbdev: pxafb: Add support for lcd-supply regulator 2018-07-24 19:11:26 +02:00
pxafb.h video: fbdev: pxafb: Add support for lcd-supply regulator 2018-07-24 19:11:26 +02:00
q40fb.c video: fbdev: make fb_var_screeninfo const 2017-09-04 16:00:50 +02:00
s1d13xxxfb.c fbdev: s1d13xxxfb: remove m32r specific hacks 2018-03-26 15:56:46 +02:00
s3c2410fb.c
s3c2410fb.h
s3c-fb.c video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms 2018-03-28 16:34:29 +02:00
s3fb.c video: fbdev: s3fb: constify pci_device_id. 2017-08-01 17:20:45 +02:00
sa1100fb.c video: sa1100fb: move pseudo palette into sa1100fb_info structure 2017-10-17 16:01:13 +02:00
sa1100fb.h video: sa1100fb: move pseudo palette into sa1100fb_info structure 2017-10-17 16:01:13 +02:00
sbuslib.c fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper() 2018-10-08 12:57:36 +02:00
sbuslib.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sh7760fb.c media: fbdev: sh7760fb: convert to SPDX identifiers 2018-09-12 09:31:04 -04:00
sh_mobile_lcdcfb.c video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support 2018-05-14 15:47:30 +02:00
sh_mobile_lcdcfb.h video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support 2018-05-14 15:47:30 +02:00
simplefb.c video: fbdev: simplefb: Stop including <linux/clk-provider.h> 2018-07-03 17:43:09 +02:00
skeletonfb.c docs: fix broken references with multiple hints 2018-06-15 18:10:01 -03:00
sm501fb.c video: sm501fb: Improve a size determination in sm501fb_probe() 2018-04-26 12:24:18 +02:00
sm712.h
sm712fb.c video: fbdev: sm712fb.c: fixed constant-left comparison warning 2017-08-01 17:20:38 +02:00
smscufx.c video: smscufx: Delete an error message for a failed memory allocation in ufx_realloc_framebuffer() 2018-03-28 16:34:28 +02:00
ssd1307fb.c Revert "video: ssd1307fb: Do not hard code active-low reset sequence" 2018-10-09 15:18:42 +02:00
sstfb.c
sticore.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stifb.c video/fbdev/stifb: Fix spelling mistake in fall-through annotation 2018-09-26 18:50:54 +02:00
sunxvr500.c video: fbdev: sunxvr500: constify pci_device_id. 2017-08-01 17:20:43 +02:00
sunxvr1000.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
sunxvr2500.c video: fbdev: sunxvr2500: constify pci_device_id. 2017-08-01 17:20:41 +02:00
tcx.c video: fbdev: Convert to using %pOF instead of full_name 2017-08-07 17:22:13 +02:00
tdfxfb.c video: fbdev: mark expected switch fall-throughs 2018-07-24 19:11:28 +02:00
tgafb.c
tmiofb.c
tridentfb.c video: fbdev: tridentfb: remove deadcode on unreachable case statement 2018-07-24 19:11:28 +02:00
udlfb.c udlfb: fix some inconsistent NULL checking 2018-12-20 19:13:07 +01:00
uvesafb.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
valkyriefb.c drivers/video/fbdev: use ioremap_wc/wt() instead of __ioremap() 2018-10-13 23:52:45 +11:00
valkyriefb.h
vesafb.c
vfb.c vfb: fix video mode and line_length being set when loaded 2018-01-04 16:53:50 +01:00
vga16fb.c video: fbdev: remove redundant self assignment of 'height' 2017-12-29 19:48:43 +01:00
vt8500lcdfb.c video/fbdev/vt8500lcdfb: Delete an error message for a failed memory allocation in vt8500lcd_probe() 2017-12-29 19:48:44 +01:00
vt8500lcdfb.h
vt8623fb.c video: fbdev: vt8623fb: constify vt8623_timing_regs 2017-08-18 19:56:40 +02:00
w100fb.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
w100fb.h
wm8505fb_regs.h
wm8505fb.c video/fbdev/wm8505fb: Delete an error message for a failed memory allocation in wm8505fb_probe() 2017-12-29 19:48:43 +01:00
wmt_ge_rops.c
wmt_ge_rops.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-fbfront.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
xilinxfb.c video: fbdev: Fix multiple style issues in xilinxfb 2017-08-21 16:49:57 +02:00