The patch titled
Subject: kprobes: silence DEBUG_STRICT_USER_COPY_CHECKS=y warning
has been removed from the -mm tree. Its filename was
kprobes-silence-debug_strict_user_copy_checks=y-warning.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Subject: kprobes: silence DEBUG_STRICT_USER_COPY_CHECKS=y warning
Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following warning:
In file included from arch/x86/include/asm/uaccess.h:573,
from kernel/kprobes.c:55:
In function 'copy_from_user',
inlined from 'write_enabled_file_bool' at
kernel/kprobes.c:2191:
arch/x86/include/asm/uaccess_64.h:65:
warning: call to 'copy_from_user_overflow' declared with
attribute warning: copy_from_user() buffer size is not provably
correct
presumably due to buf_size being signed causing GCC to fail to see that
buf_size can't become negative.
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Cc: Ananth N Mavinakayanahalli <ananth@xxxxxxxxxx>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/kprobes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/kprobes.c~kprobes-silence-debug_strict_user_copy_checks=y-warning kernel/kprobes.c
--- a/kernel/kprobes.c~kprobes-silence-debug_strict_user_copy_checks=y-warning
+++ a/kernel/kprobes.c
@@ -2198,7 +2198,7 @@ static ssize_t write_enabled_file_bool(s
const char __user *user_buf, size_t count, loff_t *ppos)
{
char buf[32];
- int buf_size;
+ size_t buf_size;
buf_size = min(count, (sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
_
Patches currently in -mm which might be from sboyd@xxxxxxxxxxxxxx are
origin.patch
linux-next.patch
debugobjects-fix-selftest-for-static-warnings.patch
drivers-scsi-sgc-convert-to-kstrtoul_from_user.patch
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