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[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>
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1 changed files with 11 additions and 4 deletions
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@ -95,12 +95,19 @@ static inline struct thread_info *current_thread_info(void)
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#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
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#define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP)
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/* XXX: These two masks must never span more than 16 bits! */
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/* Note: The masks below must never span more than 16 bits! */
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/* work to do on interrupt/exception return */
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#define _TIF_WORK_MASK 0x0000013e
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#define _TIF_WORK_MASK \
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((1 << TIF_SIGPENDING) \
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| (1 << TIF_NEED_RESCHED) \
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| (1 << TIF_POLLING_NRFLAG) \
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| (1 << TIF_BREAKPOINT) \
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| (1 << TIF_RESTORE_SIGMASK))
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/* work to do on any return to userspace */
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#define _TIF_ALLWORK_MASK 0x0000013f
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#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SYSCALL_TRACE))
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/* work to do on return from debug mode */
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#define _TIF_DBGWORK_MASK 0x0000017e
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#define _TIF_DBGWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SINGLE_STEP))
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#endif /* __ASM_AVR32_THREAD_INFO_H */
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