[ARM] Fix sys_sendto and sys_recvfrom 6-arg syscalls
Rather than providing more wrappers for 6-arg syscalls, arrange for
them to be supported as standard. This just means that we always
store the 6th argument on the stack, rather than in the wrappers.
This means we eliminate the wrappers for:
* sys_futex
* sys_arm_fadvise64_64
* sys_mbind
* sys_ipc
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index f7f18307..e2b4299 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -145,7 +145,7 @@
#endif
enable_irq
- str r4, [sp, #-S_OFF]! @ push fifth arg
+ stmdb sp!, {r4, r5} @ push fifth and sixth args
get_thread_info tsk
ldr ip, [tsk, #TI_FLAGS] @ check for syscall tracing
@@ -204,7 +204,7 @@
* Special system call wrappers
*/
@ r0 = syscall number
-@ r5 = syscall table
+@ r8 = syscall table
.type sys_syscall, #function
sys_syscall:
eor scno, r0, #__NR_SYSCALL_BASE
@@ -255,22 +255,6 @@
ldr r2, [sp, #S_OFF + S_SP]
b do_sigaltstack
-sys_futex_wrapper:
- str r5, [sp, #4] @ push sixth arg
- b sys_futex
-
-sys_arm_fadvise64_64_wrapper:
- str r5, [sp, #4] @ push r5 to stack
- b sys_arm_fadvise64_64
-
-sys_mbind_wrapper:
- str r5, [sp, #4]
- b sys_mbind
-
-sys_ipc_wrapper:
- str r5, [sp, #4] @ push sixth arg
- b sys_ipc
-
/*
* Note: off_4k (r5) is always units of 4K. If we can't do the requested
* offset, we return EINVAL.
