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authorMichael Weiser <michael.weiser@gmx.de>2018-02-01 23:13:36 +0100
committerWill Deacon <will.deacon@arm.com>2018-02-19 17:05:53 +0000
commit1962682d2b2fbe6cfa995a85c53c069fadda473e (patch)
tree9e5edcbca7a89ac09fd2e68a100d41c3505332f8 /arch
parent5ee39a71fd89ab7240c5339d04161c44a8e03269 (diff)
arm64: Remove unimplemented syscall log message
Stop printing a (ratelimited) kernel message for each instance of an unimplemented syscall being called. Userland making an unimplemented syscall is not necessarily misbehaviour and to be expected with a current userland running on an older kernel. Also, the current message looks scary to users but does not actually indicate a real problem nor help them narrow down the cause. Just rely on sys_ni_syscall() to return -ENOSYS. Cc: <stable@vger.kernel.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Michael Weiser <michael.weiser@gmx.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/kernel/traps.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index c8639f95e59a..eb2d15147e8d 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -526,14 +526,6 @@ asmlinkage long do_ni_syscall(struct pt_regs *regs)
}
#endif
- if (show_unhandled_signals_ratelimited()) {
- pr_info("%s[%d]: syscall %d\n", current->comm,
- task_pid_nr(current), regs->syscallno);
- dump_instr("", regs);
- if (user_mode(regs))
- __show_regs(regs);
- }
-
return sys_ni_syscall();
}