Messages in this thread | | | Subject | Re: [PATCH] ARC: unbork 5.11 bootup: fix snafu in _TIF_NOTIFY_SIGNAL handling | From | Jens Axboe <> | Date | Wed, 6 Jan 2021 19:13:03 -0700 |
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On 1/6/21 5:12 PM, Vineet Gupta wrote: > Linux 5.11.rcX was failing to boot on ARC HSDK board. Turns out we have > a couple of issues, this being the first one, and I'm to blame as I > didn't pay attention during review. > > TIF_NOTIFY_SIGNAL support requires checking multiple TIF_* bits in > kernel return code path. Old code only needed to check a single bit so > BBIT0 <TIF_SIGPENDING> worked. New code needs to check multiple bits so > AND <bit-mask> instruction. So needs to use bit mask variant _TIF_SIGPENDING
Sorry about that, my arc asm isn't that strong :-) Thanks for fixing it.
-- Jens Axboe
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