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authorVineet Gupta <vgupta@synopsys.com>2017-12-08 08:26:58 -0800
committerVineet Gupta <vgupta@synopsys.com>2017-12-20 12:41:46 -0800
commit79435ac78d160e4c245544d457850a56f805ac0d (patch)
tree9416b54b5a0d1c71b1cc1140c28f98f79ea0a417 /arch/arc/include
parentd7de73b586b2db540187ff8a077330fa1a8efd64 (diff)
downloadlinux-79435ac78d160e4c245544d457850a56f805ac0d.tar.gz
ARC: uaccess: dont use "l" gcc inline asm constraint modifier
This used to setup the LP_COUNT register automatically, but now has been removed. There was an earlier fix 3c7c7a2fc8811 which fixed instance in delay.h but somehow missed this one as gcc change had not made its way into production toolchains and was not pedantic as it is now ! Cc: stable@vger.kernel.org Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/include')
-rw-r--r--arch/arc/include/asm/uaccess.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h
index f35974ee7264..c9173c02081c 100644
--- a/arch/arc/include/asm/uaccess.h
+++ b/arch/arc/include/asm/uaccess.h
@@ -668,6 +668,7 @@ __arc_strncpy_from_user(char *dst, const char __user *src, long count)
return 0;
__asm__ __volatile__(
+ " mov lp_count, %5 \n"
" lp 3f \n"
"1: ldb.ab %3, [%2, 1] \n"
" breq.d %3, 0, 3f \n"
@@ -684,8 +685,8 @@ __arc_strncpy_from_user(char *dst, const char __user *src, long count)
" .word 1b, 4b \n"
" .previous \n"
: "+r"(res), "+r"(dst), "+r"(src), "=r"(val)
- : "g"(-EFAULT), "l"(count)
- : "memory");
+ : "g"(-EFAULT), "r"(count)
+ : "lp_count", "lp_start", "lp_end", "memory");
return res;
}