Nicholas Piggin 105345b909 powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls ... commit 5665bc35c1ed917ac8fd06cb651317bb47a65b10 upstream. The sc and scv 0 system calls have different ABI conventions, and ptracers need to know which system call type is being used if they want to look at the syscall registers. Document that pt_regs.trap can be used for this, and fix one in-tree user to work with scv 0 syscalls. Fixes: 7fa95f9ada ("powerpc/64s: system call support for scv/rfscv instructions") Cc: stable@vger.kernel.org # v5.9+ Reported-by: "Dmitry V. Levin" <ldv@altlinux.org> Suggested-by: "Dmitry V. Levin" <ldv@altlinux.org> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210520111931.2597127-1-npiggin@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-26 12:06:53 +02:00
..
fault-injection	docs: fault-injection: convert docs to ReST and rename to *.rst	2019-06-14 14:21:07 -06:00
ktest	tweewide: Fix most Shebang lines	2021-05-22 11:40:55 +02:00
kunit	tweewide: Fix most Shebang lines	2021-05-22 11:40:55 +02:00
nvdimm	device-dax: add dis-contiguous resource support	2020-10-13 18:38:28 -07:00
radix-tree	idr test suite: Create anchor before launching throbber	2021-04-16 11:43:21 +02:00
scatterlist	tools/testing/scatterlist: Fix test to compile and run	2020-11-17 20:02:20 -04:00
selftests	powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls	2021-05-26 12:06:53 +02:00
vsock	SPDX patches for 5.7-rc1.	2020-04-03 13:12:26 -07:00