[PATCH 02/12] mm: add casts to/from gfp_t in gfp_to_alloc_flags()

From: Namhyung Kim
Date: Wed Sep 29 2010 - 23:50:42 EST


This removes following warning from sparse:

mm/page_alloc.c:1934:9: warning: restricted gfp_t degrades to integer

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx>
---
mm/page_alloc.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a8cfa9c..7c4e5b1 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1931,7 +1931,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask)
const gfp_t wait = gfp_mask & __GFP_WAIT;

/* __GFP_HIGH is assumed to be the same as ALLOC_HIGH to save a branch. */
- BUILD_BUG_ON(__GFP_HIGH != ALLOC_HIGH);
+ BUILD_BUG_ON(__GFP_HIGH != (__force gfp_t) ALLOC_HIGH);

/*
* The caller may dip into page reserves a bit more if the caller
@@ -1939,7 +1939,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask)
* policy or is asking for __GFP_HIGH memory. GFP_ATOMIC requests will
* set both ALLOC_HARDER (!wait) and ALLOC_HIGH (__GFP_HIGH).
*/
- alloc_flags |= (gfp_mask & __GFP_HIGH);
+ alloc_flags |= (__force int) (gfp_mask & __GFP_HIGH);

if (!wait) {
alloc_flags |= ALLOC_HARDER;
--
1.7.2.2

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