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| author | Michael Weiser <michael.weiser@gmx.de> | 2018-02-01 23:13:36 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-28 10:21:36 +0100 |
| commit | b1acbe1b51593593bb496d4bd000665ee7372972 (patch) | |
| tree | 7c90b55806436e24a0feafa2fa10c1886afa8586 | |
| parent | 4834cd5ef556070f23b7bc3de240a5cba7efadf9 (diff) | |
| download | linux-b1acbe1b51593593bb496d4bd000665ee7372972.tar.gz linux-b1acbe1b51593593bb496d4bd000665ee7372972.tar.bz2 linux-b1acbe1b51593593bb496d4bd000665ee7372972.zip | |
arm64: Remove unimplemented syscall log message
commit 1962682d2b2fbe6cfa995a85c53c069fadda473e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/arm64/kernel/traps.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 3d3588fcd1c7..c46b2c96abe7 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(); } |