Commit 2196dfea authored Jul 09, 2020 by Sudeep Holla Committed by Chris Wilson Jul 09, 2020

drm/i915/selftests: Fix compare functions provided for sorting

Both cmp_u32 and cmp_u64 are comparing the pointers instead of the value
at those pointers. This will result in incorrect/unsorted list. Fix it
by deferencing the pointers before comparison.

Fixes: 4ba74e53 ("drm/i915/selftests: Verify frequency scaling with RPS")
Fixes: 8757797f ("drm/i915/selftests: Repeat the rps clock frequency measurement")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200709154931.23310-1-sudeep.holla@arm.com

parent 3d702d06

drivers/gpu/drm/i915/gt/selftest_rps.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -29,9 +29,9 @@ static int cmp_u64(const void A, const void B)
		{
		const u64 a = A, b = B;

		if (a < b)
		if (a < b)
		return -1;
		else if (a > b)
		else if (a > b)
		return 1;
		else
		return 0;
		@@ -41,9 +41,9 @@ static int cmp_u32(const void A, const void B)
		{
		const u32 a = A, b = B;

		if (a < b)
		if (a < b)
		return -1;
		else if (a > b)
		else if (a > b)
		return 1;
		else
		return 0;