diff options
| author | Firoz Khan <firoz.khan@linaro.org> | 2018-12-13 14:37:36 +0530 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2018-12-14 11:19:01 -0800 |
| commit | be856439c998854c009b1f2ef9084a39b1295cec (patch) | |
| tree | 4cdbdaabf2a4fd5e2db1fa9246ed47c4a1e6aac5 /arch/mips/kernel/scall64-o32.S | |
| parent | 6d92c26815c57682fad35eeb3e5747ce75d79212 (diff) | |
mips: add +1 to __NR_syscalls in uapi header
All other architectures are hold a value for __NR_syscalls will
be equal to the last system call number +1.
But in mips architecture, __NR_syscalls hold the value equal to
total number of system exits in the architecture. One of the
patch in this patch series will genarate uapi header files.
In order to make the implementation common across all architect-
ures, add +1 to __NR_syscalls, which will be equal to the last
system call number +1.
Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: y2038@lists.linaro.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: arnd@arndb.de
Cc: deepa.kernel@gmail.com
Cc: marcin.juszkiewicz@linaro.org
Diffstat (limited to 'arch/mips/kernel/scall64-o32.S')
| -rw-r--r-- | arch/mips/kernel/scall64-o32.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 73913f072e39..eb53d8eac5e2 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -34,7 +34,7 @@ NESTED(handle_sys, PT_SIZE, sp) ld t1, PT_EPC(sp) # skip syscall on return dsubu t0, v0, __NR_O32_Linux # check syscall number - sltiu t0, t0, __NR_O32_Linux_syscalls + 1 + sltiu t0, t0, __NR_O32_Linux_syscalls daddiu t1, 4 # skip to next instruction sd t1, PT_EPC(sp) beqz t0, not_o32_scall @@ -144,7 +144,7 @@ trace_a_syscall: ld a7, PT_R11(sp) # For indirect syscalls dsubu t0, v0, __NR_O32_Linux # check (new) syscall number - sltiu t0, t0, __NR_O32_Linux_syscalls + 1 + sltiu t0, t0, __NR_O32_Linux_syscalls beqz t0, not_o32_scall j syscall_common @@ -193,7 +193,7 @@ not_o32_scall: LEAF(sys32_syscall) subu t0, a0, __NR_O32_Linux # check syscall number - sltiu v0, t0, __NR_O32_Linux_syscalls + 1 + sltiu v0, t0, __NR_O32_Linux_syscalls beqz t0, einval # do not recurse dsll t1, t0, 3 beqz v0, einval |