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| author | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2007-11-27 14:10:58 +0100 |
|---|---|---|
| committer | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2007-12-07 14:52:32 +0100 |
| commit | 702f22b306c8357b3ef5012b5a8ce062e1d11b4e (patch) | |
| tree | 48e488428753698ba003e9ff95f5bf835dbe473e | |
| parent | f194d132e4971111f85c18c96067acffb13cee6d (diff) | |
| download | lwn-702f22b306c8357b3ef5012b5a8ce062e1d11b4e.tar.gz lwn-702f22b306c8357b3ef5012b5a8ce062e1d11b4e.zip | |
[AVR32] Add TIF_RESTORE_SIGMASK to the work masks
We really need to check TIF_RESTORE_SIGMASK before returning to
userspace. The existing code does not necessarily do this.
Define the work masks as a bitwise OR of the respective flags instead
of a hardcoded hex value to make it easier to spot errors like this in
the future.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
| -rw-r--r-- | include/asm-avr32/thread_info.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/include/asm-avr32/thread_info.h b/include/asm-avr32/thread_info.h index 17dacf3f36d3..67e7aae89e1f 100644 --- a/include/asm-avr32/thread_info.h +++ b/include/asm-avr32/thread_info.h @@ -95,12 +95,19 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) #define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP) -/* XXX: These two masks must never span more than 16 bits! */ +/* Note: The masks below must never span more than 16 bits! */ + /* work to do on interrupt/exception return */ -#define _TIF_WORK_MASK 0x0000013e +#define _TIF_WORK_MASK \ + ((1 << TIF_SIGPENDING) \ + | (1 << TIF_NEED_RESCHED) \ + | (1 << TIF_POLLING_NRFLAG) \ + | (1 << TIF_BREAKPOINT) \ + | (1 << TIF_RESTORE_SIGMASK)) + /* work to do on any return to userspace */ -#define _TIF_ALLWORK_MASK 0x0000013f +#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SYSCALL_TRACE)) /* work to do on return from debug mode */ -#define _TIF_DBGWORK_MASK 0x0000017e +#define _TIF_DBGWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SINGLE_STEP)) #endif /* __ASM_AVR32_THREAD_INFO_H */ |