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Subject[PATCH-ugly] kmemtrace: casting a gfp_t requires __force
gfp_t is a bitwise type, casting to unsigned long produces a
warning. Suppress it with __force.

Otherwise sparse complains thusly:
include/linux/kmemtrace.h:33:2: warning: cast from restricted gfp_t

Signed-off-by: Harvey Harrison <>
Eduard, this is a local patch I've had sitting around in my sparse testing
tree. I'm really not sure what the appropriate format specifier is for a
gfp_t, but I don't think the trace infrastructure has support for it if you are going to keep casting to unsigned long you'll need
this...perhaps with a comment why added.

include/linux/kmemtrace.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/kmemtrace.h b/include/linux/kmemtrace.h
index 5bea8ea..9d82085 100644
--- a/include/linux/kmemtrace.h
+++ b/include/linux/kmemtrace.h
@@ -34,7 +34,7 @@ static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
"bytes_req %lu bytes_alloc %lu gfp_flags %lu node %d",
type_id, call_site, (unsigned long) ptr,
(unsigned long) bytes_req, (unsigned long) bytes_alloc,
- (unsigned long) gfp_flags, node);
+ (__force unsigned long)gfp_flags, node);

static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,

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