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

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only one user for those

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-03-19 15:17:25 -04:00
parent 07f78b3089
commit c8313947af
2 changed files with 28 additions and 48 deletions
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34
arch/cris/include/arch-v10/arch/uaccess.h
View File

@ -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) \

42
arch/cris/include/arch-v32/arch/uaccess.h
View File

@ -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")