From: Vineet Gupta Date: Mon, 27 May 2013 12:59:16 +0000 (+0530) Subject: ARC: pt_regs cleanup #0: remove kernel stack canary X-Git-Tag: next-20130619~114^2~16 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=20f5255a9a7a34a8ae32e62a7600bdbe396e9a6d;p=karo-tx-linux.git ARC: pt_regs cleanup #0: remove kernel stack canary This stack slot is going to be used in subsequent commits Signed-off-by: Vineet Gupta --- diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h index eb2ae53187d9..5bbec8ad8123 100644 --- a/arch/arc/include/asm/entry.h +++ b/arch/arc/include/asm/entry.h @@ -326,10 +326,6 @@ /* With current tsk in r9, get it's kernel mode stack base */ GET_TSK_STACK_BASE r9, r9 -#ifdef PT_REGS_CANARY - st 0xabcdabcd, [r9, 0] -#endif - /* Save Pre Intr/Exception User SP on kernel stack */ st.a sp, [r9, -12] ; Make room for orig_r0 and orig_r8 @@ -437,11 +433,6 @@ lr r9, [erbta] st.a r9, [sp, -4] -#ifdef PT_REGS_CANARY - mov r9, 0xdeadbeef - st r9, [sp, -4] -#endif - /* move up by 1 word to "create" pt_regs->"stack_place_holder" */ sub sp, sp, 4 .endm @@ -540,10 +531,6 @@ lr r9, [bta_l1] st.a r9, [sp, -4] -#ifdef PT_REGS_CANARY - mov r9, 0xdeadbee1 - st r9, [sp, -4] -#endif /* move up by 1 word to "create" pt_regs->"stack_place_holder" */ sub sp, sp, 4 .endm @@ -575,11 +562,6 @@ lr r9, [bta_l2] st.a r9, [sp, -4] -#ifdef PT_REGS_CANARY - mov r9, 0xdeadbee2 - st r9, [sp, -4] -#endif - /* move up by 1 word to "create" pt_regs->"stack_place_holder" */ sub sp, sp, 4 .endm