From: Huang Rui <ray.huang@xxxxxxx>
[ Upstream commit 3ca706c189db861b2ca2019a0901b94050ca49d8 ]
On sparc64, __fls() returns an "int", but the drm TTM code expected it
to be "unsigned long" as on x86. As a result, on sparc (and arc, and
m68k) you get build errors because 'min()' checks that the types match.
As suggested by Linus, it can use min_t instead of min to force the type
to be "unsigned int".
Suggested-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Cc: Alex Deucher <alexdeucher@xxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/ttm/ttm_pool.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index cb38b1a17b09..82cbb29a05aa 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -383,7 +383,8 @@ int ttm_pool_alloc(struct ttm_pool *pool, struct ttm_tt *tt,
else
gfp_flags |= GFP_HIGHUSER;
- for (order = min(MAX_ORDER - 1UL, __fls(num_pages)); num_pages;
+ for (order = min_t(unsigned int, MAX_ORDER - 1, __fls(num_pages));
+ num_pages;
order = min_t(unsigned int, order, __fls(num_pages))) {
bool apply_caching = false;
struct ttm_pool_type *pt;
--
2.33.0
