linux-kernel - [PATCH] drm/i915: fix command parser debug print format mismatches

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Date:	Wed,  2 Apr 2014 11:24:20 +0300
From:	Jani Nikula <jani.nikula@...el.com>
To:	Randy Dunlap <rdunlap@...radead.org>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
	Daniel Vetter <daniel.vetter@...ll.ch>, jani.nikula@...el.com
Subject: [PATCH] drm/i915: fix command parser debug print format mismatches

Drop the cast from the pointer diff to fix:

drivers/gpu/drm/i915/i915_cmd_parser.c:405:4: warning: format '%td' expects
argument of type 'ptrdiff_t', but argument 5 has type 'long unsigned int'
[-Wformat]

While at it, use %u for u32.

Reported-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Jani Nikula <jani.nikula@...el.com>

---

Randy, try as I might, I wasn't able to coerce gcc to spit out that
warning. Please enlighten me! (Does this fix the warn?)

Thanks for the report.
---
 drivers/gpu/drm/i915/i915_cmd_parser.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_cmd_parser.c b/drivers/gpu/drm/i915/i915_cmd_parser.c
index 71ac3b4eaa0d..e5c4e99a22fb 100644
--- a/drivers/gpu/drm/i915/i915_cmd_parser.c
+++ b/drivers/gpu/drm/i915/i915_cmd_parser.c
@@ -811,10 +811,10 @@ int i915_parse_cmds(struct intel_ring_buffer *ring,
 			length = ((*cmd & desc->length.mask) + LENGTH_BIAS);
 
 		if ((batch_end - cmd) < length) {
-			DRM_DEBUG_DRIVER("CMD: Command length exceeds batch length: 0x%08X length=%d batchlen=%td\n",
+			DRM_DEBUG_DRIVER("CMD: Command length exceeds batch length: 0x%08X length=%u batchlen=%td\n",
 					 *cmd,
 					 length,
-					 (unsigned long)(batch_end - cmd));
+					 batch_end - cmd);
 			ret = -EINVAL;
 			break;
 		}
-- 
1.7.9.5

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