This is a note to let you know that I've just added the patch titled
drm/nouveau/bios: make jump conditional
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-nouveau-bios-make-jump-conditional.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6d60792ec059d9f2139828f9f017679abb81aa73 Mon Sep 17 00:00:00 2001
From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Date: Sun, 5 Jan 2014 20:07:02 -0500
Subject: drm/nouveau/bios: make jump conditional
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From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
commit 6d60792ec059d9f2139828f9f017679abb81aa73 upstream.
This fixes a hang in VBIOS scripts of the form "condition; jump".
The jump used to always be executed, while now it will only be
executed if the condition is true.
See https://bugs.freedesktop.org/show_bug.cgi?id=72943
Reported-by: Darcy Brás da Silva <dardevelin@xxxxxxxxxxxxxx>
Signed-off-by: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/core/subdev/bios/init.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
@@ -1294,7 +1294,11 @@ init_jump(struct nvbios_init *init)
u16 offset = nv_ro16(bios, init->offset + 1);
trace("JUMP\t0x%04x\n", offset);
- init->offset = offset;
+
+ if (init_exec(init))
+ init->offset = offset;
+ else
+ init->offset += 3;
}
/**
Patches currently in stable-queue which might be from imirkin@xxxxxxxxxxxx are
queue-3.12/drm-nouveau-bios-make-jump-conditional.patch
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