From be856439c998854c009b1f2ef9084a39b1295cec Mon Sep 17 00:00:00 2001 From: Firoz Khan Date: Thu, 13 Dec 2018 14:37:36 +0530 Subject: 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 Signed-off-by: Paul Burton Cc: linux-mips@vger.kernel.org Cc: Ralf Baechle Cc: James Hogan Cc: Greg Kroah-Hartman Cc: Philippe Ombredanne Cc: Thomas Gleixner Cc: Kate Stewart 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 --- arch/mips/kernel/scall64-o32.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/mips/kernel/scall64-o32.S') 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 -- cgit v1.2.3-70-g09d2