linux-stable.git/drivers/video/fbdev, branch v5.2.19

efifb: BGRT: Improve efifb_bgrt_sanity_check

2019-10-05T11:14:09+00:00

commit 51677dfcc17f88ed754143df670ff064eae67f84 upstream.

For various reasons, at least with x86 EFI firmwares, the xoffset and
yoffset in the BGRT info are not always reliable.

Extensive testing has shown that when the info is correct, the
BGRT image is always exactly centered horizontally (the yoffset variable
is more variable and not always predictable).

This commit simplifies / improves the bgrt_sanity_check to simply
check that the BGRT image is exactly centered horizontally and skips
(re)drawing it when it is not.

This fixes the BGRT image sometimes being drawn in the wrong place.

Cc: stable@vger.kernel.org
Fixes: 88fe4ceb2447 ("efifb: BGRT: Do not copy the boot graphics for non native resolutions")
Signed-off-by: Hans de Goede 
Cc: Peter Jones ,
Signed-off-by: Bartlomiej Zolnierkiewicz 
Link: https://patchwork.freedesktop.org/patch/msgid/20190721131918.10115-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

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Signed-off-by: Greg Kroah-Hartman

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2019-06-19T15:09:07+00:00

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Signed-off-by: Thomas Gleixner 
Reviewed-by: Alexios Zavras 
Reviewed-by: Allison Randal 
Reviewed-by: Enrico Weigelt 
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Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de
Signed-off-by: Greg Kroah-Hartman

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2019-06-05T15:37:18+00:00

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Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333

2019-06-05T15:37:06+00:00

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  warranty without even the implied warranty of merchantability or
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Link: https://lkml.kernel.org/r/20190530000436.384967451@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288

2019-06-05T15:36:37+00:00

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  fitness for a particular purpose see the gnu general public license
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extracted by the scancode license scanner the SPDX license identifier

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Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
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Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de
Signed-off-by: Greg Kroah-Hartman

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2019-06-05T15:36:37+00:00

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Signed-off-by: Thomas Gleixner 
Reviewed-by: Alexios Zavras 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 280

2019-06-05T15:36:36+00:00

Based on 1 normalized pattern(s):

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Signed-off-by: Thomas Gleixner 
Reviewed-by: Alexios Zavras 
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Link: https://lkml.kernel.org/r/20190529141900.459653302@linutronix.de
Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 262

2019-06-05T15:30:28+00:00

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Signed-off-by: Greg Kroah-Hartman

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2019-06-05T15:30:27+00:00

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Signed-off-by: Greg Kroah-Hartman