From: Russell King Date: Sun, 25 Jun 2006 10:37:09 +0000 (+0100) Subject: [ARM] Remove save_lr/restore_pc macros X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=405040a78b33e39edf4180fc993b9608f07d3c41;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git [ARM] Remove save_lr/restore_pc macros As for RETINSTR/LOADREGS macros, these were for compatibility with 26-bit ARMs. No longer required, so remove them. Signed-off-by: Russell King --- diff --git a/arch/arm/lib/strncpy_from_user.S b/arch/arm/lib/strncpy_from_user.S index 629cc8775276..35649f04fcac 100644 --- a/arch/arm/lib/strncpy_from_user.S +++ b/arch/arm/lib/strncpy_from_user.S @@ -21,7 +21,6 @@ * -EFAULT on exception, or "len" if we fill the whole buffer */ ENTRY(__arch_strncpy_from_user) - save_lr mov ip, r1 1: subs r2, r2, #1 USER( ldrplbt r3, [r1], #1) @@ -31,13 +30,13 @@ USER( ldrplbt r3, [r1], #1) bne 1b sub r1, r1, #1 @ take NUL character out of count 2: sub r0, r1, ip - restore_pc + mov pc, lr .section .fixup,"ax" .align 0 9001: mov r3, #0 strb r3, [r0, #0] @ null terminate mov r0, #-EFAULT - restore_pc + mov pc, lr .previous diff --git a/arch/arm/lib/strnlen_user.S b/arch/arm/lib/strnlen_user.S index 67bcd8268128..3668a15991ef 100644 --- a/arch/arm/lib/strnlen_user.S +++ b/arch/arm/lib/strnlen_user.S @@ -21,7 +21,6 @@ * or zero on exception, or n + 1 if too long */ ENTRY(__arch_strnlen_user) - save_lr mov r2, r0 1: USER( ldrbt r3, [r0], #1) @@ -31,10 +30,10 @@ USER( ldrbt r3, [r0], #1) bne 1b add r0, r0, #1 2: sub r0, r0, r2 - restore_pc + mov pc, lr .section .fixup,"ax" .align 0 9001: mov r0, #0 - restore_pc + mov pc, lr .previous diff --git a/include/asm-arm/assembler.h b/include/asm-arm/assembler.h index add451ab8947..b97cb3e1ba72 100644 --- a/include/asm-arm/assembler.h +++ b/include/asm-arm/assembler.h @@ -100,18 +100,6 @@ msr cpsr_c, \oldcpsr .endm -/* - * These two are used to save LR/restore PC over a user-based access. - * The old 26-bit architecture requires that we do. On 32-bit - * architecture, we can safely ignore this requirement. - */ - .macro save_lr - .endm - - .macro restore_pc - mov pc, lr - .endm - #define USER(x...) \ 9999: x; \ .section __ex_table,"a"; \