linux-toradex.git/arch/microblaze/lib/uaccess_old.S, branch v5.18 Linux kernel for Apalis and Colibri modules microblaze: use generic strncpy/strnlen from_user 2021-07-27T21:01:13+00:00 Arnd Bergmann arnd@arndb.de 2020-01-16T14:58:41+00:00 b26b181651f3214fa2383411fb85029b7f3e1788 Remove the microblaze implemenation of strncpy/strnlen and instead use the generic versions. The microblaze version is fairly slow because it always does byte accesses even for aligned data, and it lacks a checks for user_addr_max(). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> 
Remove the microblaze implemenation of strncpy/strnlen and instead use
the generic versions.  The microblaze version is fairly slow because it
always does byte accesses even for aligned data, and it lacks a checks
for user_addr_max().

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
microblaze: Fix a typo 2021-03-22T08:26:39+00:00 Bhaskar Chowdhury unixbhaskar@gmail.com 2021-03-19T04:53:23+00:00 bbcee72c2f7ad889be7513d5e700165c3cb30e60 s/storign/storing/ Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com> Link: https://lore.kernel.org/r/20210319045323.21241-1-unixbhaskar@gmail.com Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
s/storign/storing/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Link: https://lore.kernel.org/r/20210319045323.21241-1-unixbhaskar@gmail.com
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
microblaze: Fix strncpy_from_user macro 2013-02-12T10:24:44+00:00 Michal Simek michal.simek@xilinx.com 2013-01-16T17:53:22+00:00 1de9e46c21298f85820e004bce103858bc9c9dcb Problem happens when len in strncpy_from_user is setup and passing string has len-1 chars + \0 terminated character. In this case was returned incorrect length of the string. It should always retunrs the length of the string (not including the trailing NULL). Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
Problem happens when len in strncpy_from_user is setup
and passing string has len-1 chars + \0 terminated
character. In this case was returned incorrect length
of the string.
It should always retunrs the length of the string
(not including the trailing NULL).

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
microblaze: Fix stack usage in PAGE_SIZE copy_tofrom_user 2012-03-30T09:37:13+00:00 Michal Simek monstr@monstr.eu 2012-03-30T06:21:38+00:00 ac64a9caa55bdfd8d24784f25c68cb7919ddabe3 If access to user space failed we need to reconstruct stack pointer and restore all register. This patch fixed problem introduces by: "microblaze: Add loop unrolling for PAGE in copy_tofrom_user" (sha1: ebe211254bfa6295f4ab0b33c7c881bdfabbab60) Signed-off-by: Michal Simek <monstr@monstr.eu> 
If access to user space failed we need to reconstruct
stack pointer and restore all register.

This patch fixed problem introduces by:
"microblaze: Add loop unrolling for PAGE in copy_tofrom_user"
(sha1: ebe211254bfa6295f4ab0b33c7c881bdfabbab60)

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Use delay slot in __strnlen_user, __strncpy_user 2011-10-14T10:24:34+00:00 Michal Simek monstr@monstr.eu 2011-10-02T11:07:02+00:00 cb5edfe3e553d930f9a13cb75cfe395ee38cde23 Use delay slot to speedup if maxlen is zero. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Use delay slot to speedup if maxlen is zero.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Add loop unrolling for PAGE in copy_tofrom_user 2011-10-14T10:24:26+00:00 Michal Simek monstr@monstr.eu 2011-06-10T08:49:08+00:00 ebe211254bfa6295f4ab0b33c7c881bdfabbab60 Increase performance by loop unrolling. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Increase performance by loop unrolling.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Simplify logic for unaligned byte copying 2011-10-14T10:24:25+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:08:57+00:00 782d491fc210fac03976d01071145728339b6887 Save jump instruction for unaligned byte copying. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Save jump instruction for unaligned byte copying.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Change label names - copy_tofrom_user 2011-10-14T10:24:22+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:07:55+00:00 c83858b3e6e8db9dbb17641de1a2420bb102ae31 Change label name to be prepared for loop unrolling. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Change label name to be prepared for loop unrolling.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Separate fixup section definition 2011-10-14T10:24:22+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:05:45+00:00 eedac7914dd4d6effa0b970a36efd898c9fc4873 Move fixups below appropriate code. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Move fixups below appropriate code.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Change label name in copy_tofrom_user 2011-10-14T10:24:21+00:00 Michal Simek monstr@monstr.eu 2011-06-10T09:03:44+00:00 9b133f8d87a460e97b63efbf421a87741a029cd0 Use label 0: for zero length copying and fixups. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Use label 0: for zero length copying and fixups.

Signed-off-by: Michal Simek <monstr@monstr.eu>