linux/arch/arc/kernel
Vineet Gupta bb12433bf5 ARC: unbork 5.11 bootup: fix snafu in _TIF_NOTIFY_SIGNAL handling
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

Cc: Jens Axboe <axboe@kernel.dk>
Fixes: 53855e1258 ("arc: add support for TIF_NOTIFY_SIGNAL")
Link: https://github.com/foss-for-synopsys-dwc-arc-processors/linux/issues/34
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2021-01-07 14:04:42 -08:00
..
.gitignore
Makefile
arc_hostlink.c
arcksyms.c
asm-offsets.c
ctx_sw.c
ctx_sw_asm.S
devtree.c
disasm.c
entry-arcv2.S
entry-compact.S
entry.S
fpu.c
head.S
intc-arcv2.c
intc-compact.c
irq.c
jump_label.c
kgdb.c
kprobes.c
mcip.c
module.c
perf_event.c
process.c
ptrace.c
reset.c
setup.c
signal.c
smp.c
stacktrace.c
sys.c
traps.c
troubleshoot.c
unaligned.c
unwind.c
vmlinux.lds.S