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author | Christian Borntraeger <borntraeger@de.ibm.com> | 2019-10-08 17:02:32 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-06 12:43:19 +0100 |
commit | fbfd8dadf521784fd2fbb1cfc61e318979593c41 (patch) | |
tree | 214ceb688a01757849c250056d4a42764ff8685f /kernel/trace | |
parent | 640fb32d61f32d1011bf9a96805e5a8d033abcea (diff) |
s390/uaccess: avoid (false positive) compiler warnings
[ Upstream commit 062795fcdcb2d22822fb42644b1d76a8ad8439b3 ]
Depending on inlining decisions by the compiler, __get/put_user_fn
might become out of line. Then the compiler is no longer able to tell
that size can only be 1,2,4 or 8 due to the check in __get/put_user
resulting in false positives like
./arch/s390/include/asm/uaccess.h: In function ‘__put_user_fn’:
./arch/s390/include/asm/uaccess.h:113:9: warning: ‘rc’ may be used uninitialized in this function [-Wmaybe-uninitialized]
113 | return rc;
| ^~
./arch/s390/include/asm/uaccess.h: In function ‘__get_user_fn’:
./arch/s390/include/asm/uaccess.h:143:9: warning: ‘rc’ may be used uninitialized in this function [-Wmaybe-uninitialized]
143 | return rc;
| ^~
These functions are supposed to be always inlined. Mark it as such.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions