Commit 34f521fd authored Sep 13, 2005 by George G. Davis Committed by Russell King Sep 13, 2005

[ARM] 2896/1: Add sys_ipc_wrapper to pass 'fifth' argument on stack



Patch from George G. Davis

As pointed out be Matthew Klahn <MKLAHN@motorola.com>, some sys_ipc()
call options require six args, e.g. SEMTIMEDOP. This patch adds an ARM sys_ipc_wrapper to save the sys_ipc() 'fifth' arg on the stack.

Signed-off-by: George G. Davis <gdavis@mvista.com>
 arch/arm/kernel/calls.S        |    2 +-
 arch/arm/kernel/entry-common.S |    5 +++++
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 2f4ba45a

arch/arm/kernel/calls.S

+1 −1

Original line number	Diff line number	Diff line
		@@ -131,7 +131,7 @@ __syscall_start:
		.long sys_wait4
		/* 115 */ .long sys_swapoff
		.long sys_sysinfo
		.long sys_ipc
		.long sys_ipc_wrapper
		.long sys_fsync
		.long sys_sigreturn_wrapper
		/* 120 */ .long sys_clone_wrapper

arch/arm/kernel/entry-common.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -273,6 +273,10 @@ 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.