brcm2708: rename all patches from raspberrypi git tree to use 950 prefix

Right now all brcm2708 patches are extracted from the non-mainline
raspberrypi/linux git tree. Many of them are hacks and/or are unneeded
in LEDE. Raspberry Pi is getting better and better mainline support so
it would be nice to finally start maintaining patches in a cleaner way:
1) Backport patches accepted in upstream tree
2) Start using upstream drivers
3) Pick only these patches that are needed for more complete support

Handling above tasks requires grouping patches - ideally using the same
prefixes as generic ones. It means we should rename existing patches to
use some high prefix. This will allow e.g. use 0xx for backported code.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch b/target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch
new file mode 100644
index 0000000000..000f3a8df3
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/950-0181-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch
@@ -0,0 +1,34 @@
+From 3f131f18e76bb3fa56158adea3abddeaac68e860 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 9 Feb 2017 09:23:34 -0800
+Subject: [PATCH] drm/vc4: Fix OOPSes from trying to cache a partially
+ constructed BO.
+
+If a CMA allocation failed, the partially constructed BO would be
+unreferenced through the normal path, and we might choose to put it in
+the BO cache.  If we then reused it before it expired from the cache,
+the kernel would OOPS.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.")
+---
+ drivers/gpu/drm/vc4/vc4_bo.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_bo.c
++++ b/drivers/gpu/drm/vc4/vc4_bo.c
+@@ -314,6 +314,14 @@ void vc4_free_object(struct drm_gem_obje
+ 		goto out;
+ 	}
+ 
++	/* If this object was partially constructed but CMA allocation
++	 * had failed, just free it.
++	 */
++	if (!bo->base.vaddr) {
++		vc4_bo_destroy(bo);
++		goto out;
++	}
++
+ 	cache_list = vc4_get_cache_list_for_size(dev, gem_bo->size);
+ 	if (!cache_list) {
+ 		vc4_bo_destroy(bo);