Mesa (master): radv: Fix truncation issue hexifying the cache uuid for the disk cache.

[Bas Nieuwenhuizen]

Module: Mesa
Branch: master
Commit: 5bfbab2fdcc5b1fcb3a0d0b8cce19c5492c7de68
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5bfbab2fdcc5b1fcb3a0d0b8cce19c5492c7de68

Author: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Date:   Wed Oct 25 03:43:00 2017 +0200

radv: Fix truncation issue hexifying the cache uuid for the disk cache.

Going from binary to hex has a 2x blowup.

Fixes: 14216252923 'radv: create on-disk shader cache'
Reviewed-by: Dave Airlie <airlied at redhat.com>

---

 src/amd/vulkan/radv_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index ebc74fbade..19ff8fec64 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -170,8 +170,8 @@ radv_physical_device_init(struct radv_physical_device *device,
 	/* The gpu id is already embeded in the uuid so we just pass "radv"
 	 * when creating the cache.
 	 */
-	char buf[VK_UUID_SIZE + 1];
-	disk_cache_format_hex_id(buf, device->cache_uuid, VK_UUID_SIZE);
+	char buf[VK_UUID_SIZE * 2 + 1];
+	disk_cache_format_hex_id(buf, device->cache_uuid, VK_UUID_SIZE * 2);
 	device->disk_cache = disk_cache_create(device->name, buf, shader_env_flags);
 
 	fprintf(stderr, "WARNING: radv is not a conformant vulkan implementation, testing use only.\n");