bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-12 10:04:23 -04:00
Code Issues Packages Projects Releases Wiki Activity

ARC: uaccess: dont use "l" gcc inline asm constraint modifier

Browse Source 
commit 79435ac78d upstream.

This used to setup the LP_COUNT register automatically, but now has been
removed.

There was an earlier fix 3c7c7a2fc8 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 !

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vineet Gupta
2017-12-08 08:26:58 -08:00
committed by Greg Kroah-Hartman
parent 986128f3a7
commit d17237bbdf
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arc/include/asm/uaccess.h
View File

@@ -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;
}