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| author | Max Filippov <jcmvbkbc@gmail.com> | 2022-03-20 09:40:14 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-15 14:18:03 +0200 |
| commit | 34a57be0f9f0c21c8bba72236dd9d69e0063522c (patch) | |
| tree | 9276bbb76e5bbe685aabf57b53b600eea26c7380 /arch/xtensa | |
| parent | 54c9fb17bef1bf69551671d36e54cba5ac9bb3d1 (diff) | |
xtensa: fix xtensa_wsr always writing 0
commit a3d0245c58f962ee99d4440ea0eaf45fb7f5a5cc upstream.
The commit cad6fade6e78 ("xtensa: clean up WSR*/RSR*/get_sr/set_sr")
replaced 'WSR' macro in the function xtensa_wsr with 'xtensa_set_sr',
but variable 'v' in the xtensa_set_sr body shadowed the argument 'v'
passed to it, resulting in wrong value written to debug registers.
Fix that by removing intermediate variable from the xtensa_set_sr
macro body.
Cc: stable@vger.kernel.org
Fixes: cad6fade6e78 ("xtensa: clean up WSR*/RSR*/get_sr/set_sr")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/processor.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index 7495520d7a3e..fd1161de4535 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -225,8 +225,8 @@ extern unsigned long get_wchan(struct task_struct *p); #define xtensa_set_sr(x, sr) \ ({ \ - unsigned int v = (unsigned int)(x); \ - __asm__ __volatile__ ("wsr %0, "__stringify(sr) :: "a"(v)); \ + __asm__ __volatile__ ("wsr %0, "__stringify(sr) :: \ + "a"((unsigned int)(x))); \ }) #define xtensa_get_sr(sr) \ |