Commit c8313947 authored by Al Viro's avatar Al Viro
Browse files

cris: get rid of zeroing in __asm_copy_from_user_N for N > 4 



only one user for those

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 07f78b30

arch/cris/include/arch-v10/arch/uaccess.h

+14 −20
Original line number Diff line number Diff line
@@ -210,8 +210,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_4x_cont(to, from, ret,	\

		"	move.b [%1+],$r9\n"		\

		"4:	move.b $r9,[%0+]\n",		\

		"5:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"5:	addq 1,%2\n",			\

		"	.dword 4b,5b\n")



#define __asm_copy_from_user_6x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -219,7 +218,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.w [%1+],$r9\n"		\

		"4:	move.w $r9,[%0+]\n" COPY,	\

		"5:	addq 2,%2\n"			\

		"	clear.w [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 4b,5b\n" TENTRY)



#define __asm_copy_from_user_6(to, from, ret) \
@@ -229,8 +228,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_6x_cont(to, from, ret,	\

		"	move.b [%1+],$r9\n"		\

		"6:	move.b $r9,[%0+]\n",		\

		"7:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"7:	addq 1,%2\n",			\

		"	.dword 6b,7b\n")



#define __asm_copy_from_user_8x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -238,7 +236,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.d [%1+],$r9\n"		\

		"4:	move.d $r9,[%0+]\n" COPY,	\

		"5:	addq 4,%2\n"			\

		"	clear.d [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 4b,5b\n" TENTRY)



#define __asm_copy_from_user_8(to, from, ret) \
@@ -248,8 +246,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_8x_cont(to, from, ret,	\

		"	move.b [%1+],$r9\n"		\

		"6:	move.b $r9,[%0+]\n",		\

		"7:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"7:	addq 1,%2\n",			\

		"	.dword 6b,7b\n")



#define __asm_copy_from_user_10x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -257,7 +254,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.w [%1+],$r9\n"		\

		"6:	move.w $r9,[%0+]\n" COPY,	\

		"7:	addq 2,%2\n"			\

		"	clear.w [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 6b,7b\n" TENTRY)



#define __asm_copy_from_user_10(to, from, ret) \
@@ -267,8 +264,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_10x_cont(to, from, ret,	\

		"	move.b [%1+],$r9\n"		\

		"8:	move.b $r9,[%0+]\n",		\

		"9:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"9:	addq 1,%2\n",			\

		"	.dword 8b,9b\n")



#define __asm_copy_from_user_12x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -276,7 +272,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.d [%1+],$r9\n"		\

		"6:	move.d $r9,[%0+]\n" COPY,	\

		"7:	addq 4,%2\n"			\

		"	clear.d [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 6b,7b\n" TENTRY)



#define __asm_copy_from_user_12(to, from, ret) \
@@ -286,8 +282,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_12x_cont(to, from, ret,	\

		"	move.b [%1+],$r9\n"		\

		"8:	move.b $r9,[%0+]\n",		\

		"9:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"9:	addq 1,%2\n",			\

		"	.dword 8b,9b\n")



#define __asm_copy_from_user_14x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -295,7 +290,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.w [%1+],$r9\n"		\

		"8:	move.w $r9,[%0+]\n" COPY,	\

		"9:	addq 2,%2\n"			\

		"	clear.w [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 8b,9b\n" TENTRY)



#define __asm_copy_from_user_14(to, from, ret) \
@@ -305,8 +300,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_14x_cont(to, from, ret,	\

		"	move.b [%1+],$r9\n"		\

		"10:	move.b $r9,[%0+]\n",		\

		"11:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"11:	addq 1,%2\n",			\

		"	.dword 10b,11b\n")



#define __asm_copy_from_user_16x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -314,7 +308,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.d [%1+],$r9\n"		\

		"8:	move.d $r9,[%0+]\n" COPY,	\

		"9:	addq 4,%2\n"			\

		"	clear.d [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 8b,9b\n" TENTRY)



#define __asm_copy_from_user_16(to, from, ret) \
@@ -325,7 +319,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.d [%1+],$r9\n"		\

		"10:	move.d $r9,[%0+]\n" COPY,	\

		"11:	addq 4,%2\n"			\

		"	clear.d [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 10b,11b\n" TENTRY)



#define __asm_copy_from_user_20(to, from, ret) \
@@ -336,7 +330,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"	move.d [%1+],$r9\n"		\

		"12:	move.d $r9,[%0+]\n" COPY,	\

		"13:	addq 4,%2\n"			\

		"	clear.d [%0+]\n" FIXUP,		\

			FIXUP,				\

		"	.dword 12b,13b\n" TENTRY)



#define __asm_copy_from_user_24(to, from, ret) \

arch/cris/include/arch-v32/arch/uaccess.h

+14 −28
Original line number Diff line number Diff line
@@ -224,8 +224,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_4x_cont(to, from, ret,	\

		"4:	move.b [%1+],$acr\n"		\

		"	move.b $acr,[%0+]\n",		\

		"5:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"5:	addq 1,%2\n",			\

		"	.dword 4b,5b\n")



#define __asm_copy_from_user_6x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -234,8 +233,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"4:	move.w [%1+],$acr\n"		\

		"	move.w $acr,[%0+]\n",		\

			FIXUP				\

		"5:	addq 2,%2\n"			\

		"	clear.w [%0+]\n",		\

		"5:	addq 2,%2\n",			\

			TENTRY				\

		"	.dword 4b,5b\n")
@@ -246,8 +244,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_6x_cont(to, from, ret,	\

		"6:	move.b [%1+],$acr\n"		\

		"	move.b $acr,[%0+]\n",		\

		"7:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"7:	addq 1,%2\n",			\

		"	.dword 6b,7b\n")



#define __asm_copy_from_user_8x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -256,8 +253,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"4:	move.d [%1+],$acr\n"		\

		"	move.d $acr,[%0+]\n",		\

			FIXUP				\

		"5:	addq 4,%2\n"			\

		"	clear.d [%0+]\n",		\

		"5:	addq 4,%2\n",			\

			TENTRY				\

		"	.dword 4b,5b\n")
@@ -268,8 +264,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_8x_cont(to, from, ret,	\

		"6:	move.b [%1+],$acr\n"		\

		"	move.b $acr,[%0+]\n",		\

		"7:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"7:	addq 1,%2\n",			\

		"	.dword 6b,7b\n")



#define __asm_copy_from_user_10x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -278,8 +273,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"6:	move.w [%1+],$acr\n"		\

		"	move.w $acr,[%0+]\n",		\

			FIXUP				\

		"7:	addq 2,%2\n"			\

		"	clear.w [%0+]\n",		\

		"7:	addq 2,%2\n",			\

			TENTRY				\

		"	.dword 6b,7b\n")
@@ -290,8 +284,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_10x_cont(to, from, ret,	\

		"8:	move.b [%1+],$acr\n"		\

		"	move.b $acr,[%0+]\n",		\

		"9:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"9:	addq 1,%2\n",			\

		"	.dword 8b,9b\n")



#define __asm_copy_from_user_12x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -300,8 +293,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"6:	move.d [%1+],$acr\n"		\

		"	move.d $acr,[%0+]\n",		\

			FIXUP				\

		"7:	addq 4,%2\n"			\

		"	clear.d [%0+]\n",		\

		"7:	addq 4,%2\n",			\

			TENTRY				\

		"	.dword 6b,7b\n")
@@ -312,8 +304,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_12x_cont(to, from, ret,	\

		"8:	move.b [%1+],$acr\n"		\

		"	move.b $acr,[%0+]\n",		\

		"9:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"9:	addq 1,%2\n",			\

		"	.dword 8b,9b\n")



#define __asm_copy_from_user_14x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -322,8 +313,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"8:	move.w [%1+],$acr\n"		\

		"	move.w $acr,[%0+]\n",		\

			FIXUP				\

		"9:	addq 2,%2\n"			\

		"	clear.w [%0+]\n",		\

		"9:	addq 2,%2\n",			\

			TENTRY				\

		"	.dword 8b,9b\n")
@@ -334,8 +324,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
	__asm_copy_from_user_14x_cont(to, from, ret,	\

		"10:	move.b [%1+],$acr\n"		\

		"	move.b $acr,[%0+]\n",		\

		"11:	addq 1,%2\n"			\

		"	clear.b [%0+]\n",		\

		"11:	addq 1,%2\n",			\

		"	.dword 10b,11b\n")



#define __asm_copy_from_user_16x_cont(to, from, ret, COPY, FIXUP, TENTRY) \
@@ -344,8 +333,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"8:	move.d [%1+],$acr\n"		\

		"	move.d $acr,[%0+]\n",		\

			FIXUP				\

		"9:	addq 4,%2\n"			\

		"	clear.d [%0+]\n",		\

		"9:	addq 4,%2\n",			\

			TENTRY				\

		"	.dword 8b,9b\n")
@@ -358,8 +346,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"10:	move.d [%1+],$acr\n"		\

		"	move.d $acr,[%0+]\n",		\

			FIXUP				\

		"11:	addq 4,%2\n"			\

		"	clear.d [%0+]\n",		\

		"11:	addq 4,%2\n",			\

			TENTRY				\

		"	.dword 10b,11b\n")
@@ -372,8 +359,7 @@ __do_strncpy_from_user(char *dst, const char *src, long count) 
		"12:	move.d [%1+],$acr\n"		\

		"	move.d $acr,[%0+]\n",		\

			FIXUP				\

		"13:	addq 4,%2\n"			\

		"	clear.d [%0+]\n",		\

		"13:	addq 4,%2\n",			\

			TENTRY				\

		"	.dword 12b,13b\n")

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