MIPS: __delay ABI-dependent subtraction simplification
This small update to the previous fix to __delay removes a conditional
around the ABI-dependent subtraction operation within an inline asm in
favor to the standard <asm/asm.h> LONG_SUBU macro. No change in code
produced.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6703/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/lib/delay.c b/arch/mips/lib/delay.c
index 705cfb7..21d27c6 100644
--- a/arch/mips/lib/delay.c
+++ b/arch/mips/lib/delay.c
@@ -11,7 +11,9 @@
#include <linux/module.h>
#include <linux/param.h>
#include <linux/smp.h>
+#include <linux/stringify.h>
+#include <asm/asm.h>
#include <asm/compiler.h>
#include <asm/war.h>
@@ -27,11 +29,7 @@
" .set noreorder \n"
" .align 3 \n"
"1: bnez %0, 1b \n"
-#if BITS_PER_LONG == 32
- " subu %0, %1 \n"
-#else
- " dsubu %0, %1 \n"
-#endif
+ " " __stringify(LONG_SUBU) " %0, %1 \n"
" .set reorder \n"
: "=r" (loops)
: GCC_DADDI_IMM_ASM() (1), "0" (loops));