igt-gpu-tools: Fix warnings with gcc 11

(From OE-Core rev: 5537ad961e5d0663c2d293abe8312bd2b614d9ff)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 43 insertions, 0 deletions

diff --git a/meta/recipes-graphics/igt-gpu-tools/igt-gpu-tools/0001-lib-igt_edid-Allocate-raw-8-bytes-for-VSDB.patch b/meta/recipes-graphics/igt-gpu-tools/igt-gpu-tools/0001-lib-igt_edid-Allocate-raw-8-bytes-for-VSDB.patch
new file mode 100644
index 0000000000..38bd4550a3
--- /dev/null
+++ b/meta/recipes-graphics/igt-gpu-tools/igt-gpu-tools/0001-lib-igt_edid-Allocate-raw-8-bytes-for-VSDB.patch
@@ -0,0 +1,42 @@
+From 606349860d27492c328752dca5a3784c0e9a6d24 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sat, 27 Feb 2021 11:05:45 -0800
+Subject: [PATCH i-g-t] lib/igt_edid: Allocate raw 8-bytes for VSDB
+
+hdmi_vsdb is an element of cea_vsdb which makes the size of cea_vsdb to
+be 8 ( 3bytes ieee_oui ) + ( 5bytes hdmi_vsdb struct), its true that we
+only use 7 bytes technically we can only allocate 7byte array but since
+we are writing to elements of hdmi_vsdb struct which is sitting at offet
+4-8 in cea_vsdb, compiler thinks we have an element which is out of
+array bounds since out allocated size is 7bytes
+
+This errors out
+../git/lib/igt_edid.c:365:13: error: array subscript 'struct hdmi_vsdb[0]' is partly outside array bounds of 'char[7]' [-Werror=array-bounds]
+  365 |         hdmi->src_phy_addr[0] = 0x10;
+      |             ^~
+
+allocating one extra byte matches with size of cea_vsdb and compiler is
+happy
+
+Upstream-Status: Submitted [https://lists.freedesktop.org/archives/igt-dev/2021-February/029446.html]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ lib/igt_edid.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/igt_edid.c b/lib/igt_edid.c
+index 1c85486d..ce09cc47 100644
+--- a/lib/igt_edid.c
++++ b/lib/igt_edid.c
+@@ -351,7 +351,7 @@ void cea_sad_init_pcm(struct cea_sad *sad, int channels,
+ const struct cea_vsdb *cea_vsdb_get_hdmi_default(size_t *size)
+ {
+        /* We'll generate a VSDB with 2 extension fields. */
+-       static char raw[CEA_VSDB_HDMI_MIN_SIZE + 2] = {0};
++       static char raw[CEA_VSDB_HDMI_MIN_SIZE + 3] = {0};
+        struct cea_vsdb *vsdb;
+        struct hdmi_vsdb *hdmi;
+ 
+-- 
+2.30.1
+
diff --git a/meta/recipes-graphics/igt-gpu-tools/igt-gpu-tools_git.bb b/meta/recipes-graphics/igt-gpu-tools/igt-gpu-tools_git.bb
index f25cbc0603..098594cf2c 100644
--- a/meta/recipes-graphics/igt-gpu-tools/igt-gpu-tools_git.bb
+++ b/meta/recipes-graphics/igt-gpu-tools/igt-gpu-tools_git.bb
@@ -11,6 +11,7 @@ SRCREV = "d16ad07e7f2a028e14d61f570931c87fa5ce404c"
 PV = "1.25+git${SRCPV}"
 
 SRC_URI = "git://gitlab.freedesktop.org/drm/igt-gpu-tools.git;protocol=https \
+           file://0001-lib-igt_edid-Allocate-raw-8-bytes-for-VSDB.patch \
            file://reproducibility.patch"
 
 S = "${WORKDIR}/git"