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(parent: 02ce94c) | patch
xtensa: clean up system_call/xtensa_rt_sigreturn interaction
authorMax Filippov <jcmvbkbc@gmail.com>
Fri, 29 Nov 2019 09:25:20 +0000 (01:25 -0800)
committerMax Filippov <jcmvbkbc@gmail.com>
Sat, 30 Nov 2019 03:37:12 +0000 (19:37 -0800)
commit9d9043f6a81713248d82d88983c06b1eaedda287
tree07e43db996f00f85a7ef86fcc2858c4e71895349tree | snapshot
parent02ce94c229251555ac726ecfebe3458ef5905fa9commit | diff
xtensa: clean up system_call/xtensa_rt_sigreturn interaction

system_call assembly code always pushes pointer to struct pt_regs as the
last additional parameter for all system calls. The only user of this
feature is xtensa_rt_sigreturn.
Avoid this special case. Define xtensa_rt_sigreturn as accepting no
argiments. Use current_pt_regs to get pointer to struct pt_regs in
xtensa_rt_sigreturn. Don't pass additional parameter from system_call
code.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
arch/xtensa/include/asm/syscall.h diff | blob | history
arch/xtensa/kernel/entry.S diff | blob | history
arch/xtensa/kernel/signal.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git