OK linus/axs101_defconfig/arcompact Thu Jan 16, 15:33
http://kisskb.ellerman.id.au/kisskb/buildresult/14097372/
Commit: Merge tag 'platform-drivers-x86-v5.5-3' of
git://git.infradead.org/linux-platform-drivers-x86
51d69817519f5f00041a1a039277f0367d76c82c
Compiler: arc-buildroot-linux
OK linus/axs103_smp_defconfig/arcv2 Thu Jan 16, 15:33
http://kisskb.ellerman.id.au/kisskb/buildresult/14097371/
Commit: Merge tag 'platform-drivers-x86-v5.5-3' of
git://git.infradead.org/linux-platform-drivers-x86
51d69817519f5f00041a1a039277f0367d76c82c
Compiler: arc-linux-gcc.br_re
The existing ARC variants have 2 issues
- Use ZOL which may not be present in forthcoming architecture
- Byte loop based vs. generic version which is word loop based
Signed-off-by: Vineet Gupta
---
arch/arc/Kconfig | 2 +
arch/arc/include/asm/uaccess.h | 85 ++---
Hi,
This series switches ARC to generic word-at-a-time interface.
I understand that going fwd, we may drop the inline versions altogether but this
helps ARC code in the interim.
v2 <- v1
- Moved __strnlen_user/__strncpy_from_user to under ifdef gaurd [Arnd]
- Dropped the broken optimization pa
There are 2 generic varaints of strncpy_from_user() / strnlen_user()
(1). inline version in asm-generic/uaccess.h
(2). optimized word-at-a-time version in lib/*
This patch disables #1 if #2 selected. This allows arches to continue
reusing asm-generic/uaccess.h for rest of code
This came up when
Signed-off-by: Vineet Gupta
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/syscalls.h| 1 +
arch/arc/include/uapi/asm/unistd.h | 1 +
arch/arc/kernel/entry.S| 12
arch/arc/kernel/process.c | 7 +++
arch/arc/kernel/sys.c
On 1/14/20 12:57 PM, Arnd Bergmann wrote:
> On Tue, Jan 14, 2020 at 9:08 PM Vineet Gupta
> wrote:
>> There are 2 generic varaints of strncpy_from_user() / strnlen_user()
>> (1). inline version in asm-generic/uaccess.h
>> (2). optimized word-at-a-time version in lib/*
>>
>> This patch disables #
On 1/15/20 6:42 AM, Andrey Konovalov wrote:
>> - max_addr = user_addr_max();
>> - src_addr = (unsigned long)untagged_addr(src);
>
> If you end up changing this code, you need to keep the untagged_addr()
> logic, otherwise this breaks arm64 tagged address ABI [1].
It is moot point now,
On 6/4/19 2:29 PM, Christian Brauner wrote:
> On Tue, Jun 04, 2019 at 08:40:01PM +0200, Arnd Bergmann wrote:
>> On Tue, Jun 4, 2019 at 6:09 PM Christian Brauner
>> wrote:
>>>
>>> Wire up the clone3() call on all arches that don't require hand-rolled
>>> assembly.
>>>
>>> Some of the arches look l
From: Jose Abreu
Date: Tue, 14 Jan 2020 17:09:20 +0100
> Set of fixes for sefltests so that they work in Synopsys AXS101 board.
...
Applied patches 1-3, it looks like patch 4 went into another tree.
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Hi,
I've been testing an in-works glibc port for ARC and with 2.31 there's a glibc
change which seems to break strace.
Commit d1e411e5c786ce3 "Add PTRACE_GET_SYSCALL_INFO from Linux 5.3 to
sys/ptrace.h."
This now defines PTRACE_GET_SYSCALL_INFO but defines struct
__ptrace_syscall_info
(not the
On Tue, Jan 14, 2020 at 9:08 PM Vineet Gupta wrote:
>
> This came up when switching ARC to word-at-a-time interface and using
> generic/optimized strncpy_from_user
>
> It seems the existing code checks for user buffer/string range multiple
> times and one of tem cn be avoided.
>
> There's an open-
On Wed, Jan 15, 2020 at 3:12 PM Al Viro wrote:
>
> On Wed, Jan 15, 2020 at 10:08:31AM +0100, Arnd Bergmann wrote:
>
> > > I would suggest that anybody who uses asm-generic/uaccess.h needs to
> > > simply use the generic library version.
> >
> > Or possibly just everybody altogether: the remaining
On Wed, Jan 15, 2020 at 10:08:31AM +0100, Arnd Bergmann wrote:
> > I would suggest that anybody who uses asm-generic/uaccess.h needs to
> > simply use the generic library version.
>
> Or possibly just everybody altogether: the remaining architectures that
> have a custom implementation don't seem
On Tue, Jan 14, 2020 at 10:33 PM Linus Torvalds
wrote:
>
> On Tue, Jan 14, 2020 at 12:09 PM Vineet Gupta
> wrote:
> >
> > There are 2 generic varaints of strncpy_from_user() / strnlen_user()
> > (1). inline version in asm-generic/uaccess.h
>
> I think we should get rid of this entirely. It's jus
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