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* [PATCH v2] drm/xe/tests: Fix the shrinker test compiler warnings.
@ 2024-10-04 14:11 Thomas Hellström
  2024-10-04 14:25 ` Matthew Auld
                   ` (8 more replies)
  0 siblings, 9 replies; 10+ messages in thread
From: Thomas Hellström @ 2024-10-04 14:11 UTC (permalink / raw)
  To: intel-xe
  Cc: Thomas Hellström, Nathan Chancellor, dri-devel, Matthew Auld

The xe_bo_shrink_kunit test has an uninitialized value and illegal
integer size conversions on 32-bit. Fix.

v2:
- Use div64_u64 to ensure the u64 division compiles everywhere. (Matt Auld)

Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://lore.kernel.org/20240913195649.GA61514@thelio-3990X/
Fixes: 5a90b60db5e6 ("drm/xe: Add a xe_bo subtest for shrinking / swapping")
Cc: dri-devel@lists.freedesktop.org
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com> #v1
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
---
 drivers/gpu/drm/xe/tests/xe_bo.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/tests/xe_bo.c b/drivers/gpu/drm/xe/tests/xe_bo.c
index 7d3fd720478b..cd811aa2b227 100644
--- a/drivers/gpu/drm/xe/tests/xe_bo.c
+++ b/drivers/gpu/drm/xe/tests/xe_bo.c
@@ -7,6 +7,7 @@
 #include <kunit/visibility.h>
 
 #include <linux/iosys-map.h>
+#include <linux/math64.h>
 #include <linux/random.h>
 #include <linux/swap.h>
 
@@ -440,7 +441,7 @@ static int shrink_test_run_device(struct xe_device *xe)
 	LIST_HEAD(bos);
 	struct xe_bo_link *link, *next;
 	struct sysinfo si;
-	size_t ram, ram_and_swap, purgeable, alloced, to_alloc, limit;
+	u64 ram, ram_and_swap, purgeable = 0, alloced, to_alloc, limit;
 	unsigned int interrupted = 0, successful = 0, count = 0;
 	struct rnd_state prng;
 	u64 rand_seed;
@@ -469,7 +470,7 @@ static int shrink_test_run_device(struct xe_device *xe)
 	ram_and_swap = ram + get_nr_swap_pages() * PAGE_SIZE;
 	if (to_alloc > ram_and_swap)
 		purgeable = to_alloc - ram_and_swap;
-	purgeable += purgeable / 5;
+	purgeable += div64_u64(purgeable, 5);
 
 	kunit_info(test, "Free ram is %lu bytes. Will allocate twice of that.\n",
 		   (unsigned long)ram);
-- 
2.46.0


^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2024-10-08  6:20 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
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2024-10-04 14:11 [PATCH v2] drm/xe/tests: Fix the shrinker test compiler warnings Thomas Hellström
2024-10-04 14:25 ` Matthew Auld
2024-10-07 12:29 ` ✓ CI.Patch_applied: success for drm/xe/tests: Fix the shrinker test compiler warnings. (rev2) Patchwork
2024-10-07 12:29 ` ✓ CI.checkpatch: " Patchwork
2024-10-07 12:30 ` ✓ CI.KUnit: " Patchwork
2024-10-07 12:42 ` ✓ CI.Build: " Patchwork
2024-10-07 12:44 ` ✓ CI.Hooks: " Patchwork
2024-10-07 12:45 ` ✓ CI.checksparse: " Patchwork
2024-10-07 13:10 ` ✓ CI.BAT: " Patchwork
2024-10-08  6:20 ` ✗ CI.FULL: failure " Patchwork

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