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Subject[PATCH 2/5] kmemtrace: Better alternative to "kmemtrace: fix printk format warnings".
Fix the problem "kmemtrace: fix printk format warnings" attempted to fix,
but resulted in marker-probe format mismatch warnings. Instead of carrying
size_t into probes, we get rid of it by casting to unsigned long, just as
we did with gfp_t.

This way, we don't need to change marker format strings and we don't have
to rely on other format specifiers like "%zu", making for consistent use
of more generic data types (since there are no format specifiers for
gfp_t, for example).

Signed-off-by: Eduard - Gabriel Munteanu <>
include/linux/kmemtrace.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/include/linux/kmemtrace.h b/include/linux/kmemtrace.h
index 2c33201..5bea8ea 100644
--- a/include/linux/kmemtrace.h
+++ b/include/linux/kmemtrace.h
@@ -33,7 +33,8 @@ static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
trace_mark(kmemtrace_alloc, "type_id %d call_site %lu ptr %lu "
"bytes_req %lu bytes_alloc %lu gfp_flags %lu node %d",
type_id, call_site, (unsigned long) ptr,
- bytes_req, bytes_alloc, (unsigned long) gfp_flags, node);
+ (unsigned long) bytes_req, (unsigned long) bytes_alloc,
+ (unsigned long) gfp_flags, node);

static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,

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