diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2021-07-05 17:53:42 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-07-08 22:12:18 +0200 |
| commit | a9b660849ffa70aaef868d0bc54e325919fe1281 (patch) | |
| tree | 435c1bf417e2ee589c4e05cdf19ea3709d17cd58 /arch/s390 | |
| parent | 60a4813c4794281084a0f3de544ccf209f29a957 (diff) | |
s390: add type checking to CALL_ON_STACK_NORETURN() macro
Make sure the to be called function takes no arguments (and returns void).
Otherwise usage of CALL_ON_STACK_NORETURN() would generate broken code.
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/stacktrace.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/include/asm/stacktrace.h b/arch/s390/include/asm/stacktrace.h index 1dc9e814b756..4d4d5dfac24b 100644 --- a/arch/s390/include/asm/stacktrace.h +++ b/arch/s390/include/asm/stacktrace.h @@ -191,12 +191,14 @@ struct stack_frame { #define CALL_ON_STACK_NORETURN(fn, stack) \ ({ \ + void (*__fn)(void) = fn; \ + \ asm volatile( \ " la 15,0(%[_stack])\n" \ " xc %[_bc](8,15),%[_bc](15)\n" \ " brasl 14,%[_fn]\n" \ ::[_bc] "i" (offsetof(struct stack_frame, back_chain)), \ - [_stack] "a" (stack), [_fn] "X" (fn)); \ + [_stack] "a" (stack), [_fn] "X" (__fn)); \ BUG(); \ }) |