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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-08-06 14:15:47 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-08-06 14:15:47 +0300 |
| commit | 94fb1afb14c4f0ceb8c5508ddddac6819f662e95 (patch) | |
| tree | 4988e5769dc7482caa7f441475ae31f50bbd37ef /arch/unicore32/lib/strncpy_from_user.S | |
| parent | c4735d990268399da9133b0ad445e488ece009ad (diff) | |
| parent | 47ec5303d73ea344e84f46660fff693c57641386 (diff) | |
| download | linux-94fb1afb14c4f0ceb8c5508ddddac6819f662e95.tar.xz | |
Mgerge remote-tracking branch 'torvalds/master' into perf/core
To sync headers, for instance, in this case tools/perf was ahead of
upstream till Linus merged tip/perf/core to get the
PERF_RECORD_TEXT_POKE changes:
Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h'
diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/unicore32/lib/strncpy_from_user.S')
| -rw-r--r-- | arch/unicore32/lib/strncpy_from_user.S | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/arch/unicore32/lib/strncpy_from_user.S b/arch/unicore32/lib/strncpy_from_user.S deleted file mode 100644 index f227b8227a4c..000000000000 --- a/arch/unicore32/lib/strncpy_from_user.S +++ /dev/null @@ -1,42 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * linux/arch/unicore32/lib/strncpy_from_user.S - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - */ -#include <linux/linkage.h> -#include <asm/assembler.h> -#include <asm/errno.h> - - .text - .align 5 - -/* - * Copy a string from user space to kernel space. - * r0 = dst, r1 = src, r2 = byte length - * returns the number of characters copied (strlen of copied string), - * -EFAULT on exception, or "len" if we fill the whole buffer - */ -ENTRY(__strncpy_from_user) - mov ip, r1 -1: sub.a r2, r2, #1 - ldrusr r3, r1, 1, ns - bfs 2f - stb.w r3, [r0]+, #1 - cxor.a r3, #0 - bne 1b - sub r1, r1, #1 @ take NUL character out of count -2: sub r0, r1, ip - mov pc, lr -ENDPROC(__strncpy_from_user) - - .pushsection .fixup,"ax" - .align 0 -9001: mov r3, #0 - stb r3, [r0+], #0 @ null terminate - mov r0, #-EFAULT - mov pc, lr - .popsection - |