From da594e3fff398a164c77dd728d9fbfc6880881e6 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 24 Mar 2017 16:19:12 +0000 Subject: ARM: obtain thread info structure later Obtain the thread info structure later in the syscall processing, so that we free up a register for earlier code. Signed-off-by: Russell King --- arch/arm/kernel/entry-common.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/arm/kernel/entry-common.S') diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 9abe47a206d9..374c28723547 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -152,7 +152,6 @@ ENTRY(vector_swi) alignment_trap r10, ip, __cr_alignment enable_irq ct_user_exit - get_thread_info tsk /* * Get the system call number. @@ -209,6 +208,7 @@ ENTRY(vector_swi) bic scno, scno, #0xff000000 @ mask off SWI op-code eor scno, scno, #__NR_SYSCALL_BASE @ check OS number #endif + get_thread_info tsk local_restart: ldr r10, [tsk, #TI_FLAGS] @ check for syscall tracing @@ -240,6 +240,7 @@ local_restart: 9001: sub lr, saved_pc, #4 str lr, [sp, #S_PC] + get_thread_info tsk b ret_fast_syscall #endif ENDPROC(vector_swi) -- cgit