[Intel-gfx] [PATCH] drm/i915: silence coverity warning

Lionel Landwerlin lionel.g.landwerlin at intel.com
Thu Nov 2 11:41:26 UTC 2017


Because dev_priv is 0-ed it's not currently an issue, but since we
have dev_priv->perf.oa.test_config.uuid size at uuid + 1, we could
just copy the null character and silence this warning.

Detected by CoverityScan, CID#369632 ("Buffer not null terminated")

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/i915_oa_bdw.c    | 2 +-
 drivers/gpu/drm/i915/i915_oa_bxt.c    | 2 +-
 drivers/gpu/drm/i915/i915_oa_cflgt2.c | 2 +-
 drivers/gpu/drm/i915/i915_oa_chv.c    | 2 +-
 drivers/gpu/drm/i915/i915_oa_glk.c    | 2 +-
 drivers/gpu/drm/i915/i915_oa_hsw.c    | 2 +-
 drivers/gpu/drm/i915/i915_oa_kblgt2.c | 2 +-
 drivers/gpu/drm/i915/i915_oa_kblgt3.c | 2 +-
 drivers/gpu/drm/i915/i915_oa_sklgt2.c | 2 +-
 drivers/gpu/drm/i915/i915_oa_sklgt3.c | 2 +-
 drivers/gpu/drm/i915/i915_oa_sklgt4.c | 2 +-
 11 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_oa_bdw.c b/drivers/gpu/drm/i915/i915_oa_bdw.c
index abdf4d0abcce..cdc6456dceeb 100644
--- a/drivers/gpu/drm/i915/i915_oa_bdw.c
+++ b/drivers/gpu/drm/i915/i915_oa_bdw.c
@@ -87,7 +87,7 @@ i915_perf_load_test_config_bdw(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"d6de6f55-e526-4f79-a6a6-d7315c09044e",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_bxt.c b/drivers/gpu/drm/i915/i915_oa_bxt.c
index b69b900de0fe..0abf71a08912 100644
--- a/drivers/gpu/drm/i915/i915_oa_bxt.c
+++ b/drivers/gpu/drm/i915/i915_oa_bxt.c
@@ -85,7 +85,7 @@ i915_perf_load_test_config_bxt(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"5ee72f5c-092f-421e-8b70-225f7c3e9612",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_cflgt2.c b/drivers/gpu/drm/i915/i915_oa_cflgt2.c
index 368c87d7ee9a..cdda100cdc4d 100644
--- a/drivers/gpu/drm/i915/i915_oa_cflgt2.c
+++ b/drivers/gpu/drm/i915/i915_oa_cflgt2.c
@@ -86,7 +86,7 @@ i915_perf_load_test_config_cflgt2(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"74fb4902-d3d3-4237-9e90-cbdc68d0a446",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_chv.c b/drivers/gpu/drm/i915/i915_oa_chv.c
index 322a3f94cd16..ce0975c2173d 100644
--- a/drivers/gpu/drm/i915/i915_oa_chv.c
+++ b/drivers/gpu/drm/i915/i915_oa_chv.c
@@ -86,7 +86,7 @@ i915_perf_load_test_config_chv(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"4a534b07-cba3-414d-8d60-874830e883aa",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_glk.c b/drivers/gpu/drm/i915/i915_oa_glk.c
index 4ee527e4c926..1c8d72495259 100644
--- a/drivers/gpu/drm/i915/i915_oa_glk.c
+++ b/drivers/gpu/drm/i915/i915_oa_glk.c
@@ -85,7 +85,7 @@ i915_perf_load_test_config_glk(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"dd3fd789-e783-4204-8cd0-b671bbccb0cf",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_hsw.c b/drivers/gpu/drm/i915/i915_oa_hsw.c
index 56b03773bb9d..b02430bf2eaa 100644
--- a/drivers/gpu/drm/i915/i915_oa_hsw.c
+++ b/drivers/gpu/drm/i915/i915_oa_hsw.c
@@ -115,7 +115,7 @@ i915_perf_load_test_config_hsw(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"403d8832-1a27-4aa6-a64e-f5389ce7b212",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_render_basic;
diff --git a/drivers/gpu/drm/i915/i915_oa_kblgt2.c b/drivers/gpu/drm/i915/i915_oa_kblgt2.c
index b6e7cc774136..ff01de704781 100644
--- a/drivers/gpu/drm/i915/i915_oa_kblgt2.c
+++ b/drivers/gpu/drm/i915/i915_oa_kblgt2.c
@@ -86,7 +86,7 @@ i915_perf_load_test_config_kblgt2(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"baa3c7e4-52b6-4b85-801e-465a94b746dd",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_kblgt3.c b/drivers/gpu/drm/i915/i915_oa_kblgt3.c
index 5576afdd9a7e..4ac014c2d685 100644
--- a/drivers/gpu/drm/i915/i915_oa_kblgt3.c
+++ b/drivers/gpu/drm/i915/i915_oa_kblgt3.c
@@ -86,7 +86,7 @@ i915_perf_load_test_config_kblgt3(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"f1792f32-6db2-4b50-b4b2-557128f1688d",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_sklgt2.c b/drivers/gpu/drm/i915/i915_oa_sklgt2.c
index 890d55879946..f74cd5b0b28c 100644
--- a/drivers/gpu/drm/i915/i915_oa_sklgt2.c
+++ b/drivers/gpu/drm/i915/i915_oa_sklgt2.c
@@ -85,7 +85,7 @@ i915_perf_load_test_config_sklgt2(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"1651949f-0ac0-4cb1-a06f-dafd74a407d1",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_sklgt3.c b/drivers/gpu/drm/i915/i915_oa_sklgt3.c
index 85e51addf86a..7f4812893846 100644
--- a/drivers/gpu/drm/i915/i915_oa_sklgt3.c
+++ b/drivers/gpu/drm/i915/i915_oa_sklgt3.c
@@ -86,7 +86,7 @@ i915_perf_load_test_config_sklgt3(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"2b985803-d3c9-4629-8a4f-634bfecba0e8",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
diff --git a/drivers/gpu/drm/i915/i915_oa_sklgt4.c b/drivers/gpu/drm/i915/i915_oa_sklgt4.c
index bce031ee4445..4487235be28e 100644
--- a/drivers/gpu/drm/i915/i915_oa_sklgt4.c
+++ b/drivers/gpu/drm/i915/i915_oa_sklgt4.c
@@ -86,7 +86,7 @@ i915_perf_load_test_config_sklgt4(struct drm_i915_private *dev_priv)
 {
 	strncpy(dev_priv->perf.oa.test_config.uuid,
 		"882fa433-1f4a-4a67-a962-c741888fe5f5",
-		UUID_STRING_LEN);
+		sizeof(dev_priv->perf.oa.test_config.uuid));
 	dev_priv->perf.oa.test_config.id = 1;
 
 	dev_priv->perf.oa.test_config.mux_regs = mux_config_test_oa;
-- 
2.15.0



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