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Commit bed30976 authored by Vineet Gupta's avatar Vineet Gupta
Browse files

ARC: pt_regs update #0: remove kernel stack canary 



This stack slot is going to be used in subsequent commits

Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 3e1ae441

arch/arc/include/asm/entry.h

+0 −18
Original line number Diff line number Diff line
@@ -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