These patches fix several issues in the MIPS syscall tracing support. They are based on mips-for-linux-next (152e63e374cd). Patch 1 drops a harmless redundant select in Kconfig. Patch 2 ensures erroring syscalls have negated return value in the sys_exit trace event, so errors can be distinguished from success (tagged for stable). Patch 3 corrects a probably harmless inconsistency between normal syscall error return ($a3=1) and modified error return via syscall_set_return_value() ($a3=-1), e.g. due to seccomp SECCOMP_RET_ERRNO. Patch 4 fixes the probably harmless broken error return from negative syscall numbers when syscall tracing is enabled. Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx Cc: stable@xxxxxxxxxxxxxxx James Hogan (4): MIPS: Drop duplicate HAVE_SYSCALL_TRACEPOINTS select MIPS: Negate error syscall return in trace MIPS: Correct forced syscall errors MIPS: Traced negative syscalls should return -ENOSYS arch/mips/Kconfig | 1 - arch/mips/include/asm/syscall.h | 2 +- arch/mips/kernel/ptrace.c | 9 ++++++++- 3 files changed, 9 insertions(+), 3 deletions(-) -- git-series 0.8.10
