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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-01 15:13:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-01 15:13:02 -0700
commit4cdc4cc2ad35f92338497d53d3e8b7876cf2a51d (patch)
tree6d603bb48eeed47a4d37547c3a96c79800a2390f /arch/h8300
parent57c78a234e809e3a0516491e37ae5ccc6eeb21e8 (diff)
parent8f76f9c46952659dd925c21c3f62a0d05a3f3e71 (diff)
downloadlinux-4cdc4cc2ad35f92338497d53d3e8b7876cf2a51d.tar.bz2
Merge tag 'asm-generic-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann: "The main content for 5.15 is a series that cleans up the handling of strncpy_from_user() and strnlen_user(), removing a lot of slightly incorrect versions of these in favor of the lib/strn*.c helpers that implement these correctly and more efficiently. The only architectures that retain a private version now are mips, ia64, um and parisc. I had offered to convert those at all, but Thomas Bogendoerfer wanted to keep the mips version for the moment until he had a chance to do regression testing. The branch also contains two patches for bitops and for ffs()" * tag 'asm-generic-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: bitops/non-atomic: make @nr unsigned to avoid any DIV asm-generic: ffs: Drop bogus reference to ffz location asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbols asm-generic: remove extra strn{cpy_from,len}_user declarations asm-generic: uaccess: remove inline strncpy_from_user/strnlen_user s390: use generic strncpy/strnlen from_user microblaze: use generic strncpy/strnlen from_user csky: use generic strncpy/strnlen from_user arc: use generic strncpy/strnlen from_user hexagon: use generic strncpy/strnlen from_user h8300: remove stale strncpy_from_user asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen_user
Diffstat (limited to 'arch/h8300')
-rw-r--r--arch/h8300/kernel/h8300_ksyms.c2
-rw-r--r--arch/h8300/lib/Makefile2
-rw-r--r--arch/h8300/lib/strncpy.S35
3 files changed, 1 insertions, 38 deletions
diff --git a/arch/h8300/kernel/h8300_ksyms.c b/arch/h8300/kernel/h8300_ksyms.c
index 1c6f902e82a5..853d6e886477 100644
--- a/arch/h8300/kernel/h8300_ksyms.c
+++ b/arch/h8300/kernel/h8300_ksyms.c
@@ -19,7 +19,6 @@ asmlinkage long __mulsi3(long, long);
asmlinkage long __udivsi3(long, long);
asmlinkage void *memcpy(void *, const void *, size_t);
asmlinkage void *memset(void *, int, size_t);
-asmlinkage long strncpy_from_user(void *to, void *from, size_t n);
/* gcc lib functions */
EXPORT_SYMBOL(__ucmpdi2);
@@ -34,4 +33,3 @@ EXPORT_SYMBOL(__mulsi3);
EXPORT_SYMBOL(__udivsi3);
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(strncpy_from_user);
diff --git a/arch/h8300/lib/Makefile b/arch/h8300/lib/Makefile
index 685fa837c1f7..5911c1fa856d 100644
--- a/arch/h8300/lib/Makefile
+++ b/arch/h8300/lib/Makefile
@@ -3,7 +3,7 @@
# Makefile for H8/300-specific library files..
#
-lib-y = memcpy.o memset.o abs.o strncpy.o \
+lib-y = memcpy.o memset.o abs.o \
mulsi3.o udivsi3.o muldi3.o moddivsi3.o \
ashldi3.o lshrdi3.o ashrdi3.o ucmpdi2.o \
delay.o
diff --git a/arch/h8300/lib/strncpy.S b/arch/h8300/lib/strncpy.S
deleted file mode 100644
index 8b65d7c4727b..000000000000
--- a/arch/h8300/lib/strncpy.S
+++ /dev/null
@@ -1,35 +0,0 @@
-;;; SPDX-License-Identifier: GPL-2.0
-;;; strncpy.S
-
-#include <asm/linkage.h>
-
- .text
-.global strncpy_from_user
-
-;;; long strncpy_from_user(void *to, void *from, size_t n)
-strncpy_from_user:
- mov.l er2,er2
- bne 1f
- sub.l er0,er0
- rts
-1:
- mov.l er4,@-sp
- sub.l er3,er3
-2:
- mov.b @er1+,r4l
- mov.b r4l,@er0
- adds #1,er0
- beq 3f
- inc.l #1,er3
- dec.l #1,er2
- bne 2b
-3:
- dec.l #1,er2
-4:
- mov.b r4l,@er0
- adds #1,er0
- dec.l #1,er2
- bne 4b
- mov.l er3,er0
- mov.l @sp+,er4
- rts