From: Nicholas Piggin <npiggin@gmail.com>
To: "Michal Suchánek" <msuchanek@suse.de>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Allison Randal <allison@lohutok.net>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Arnd Bergmann <arnd@arndb.de>,
Thiago Jung Bauermann <bauerman@linux.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Claudio Carvalho <cclaudio@linux.ibm.com>,
Christophe Leroy <christophe.leroy@c-s.fr>,
"David S. Miller" <davem@davemloft.net>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Eric Richter <erichte@linux.ibm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Gustavo Luiz Duarte <gustavold@linux.ibm.com>,
Hari Bathini <hbathini@linux.ibm.com>,
Jordan Niethe <jniethe5@gmail.com>, Jiri Olsa <jolsa@redhat.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
Mark Rutland <mark.rutland@arm.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Michael Neuling <mikey@neuling.org>,
Ingo Molnar <mingo@redhat.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Namhyung Kim <namhyung@kernel.org>,
Nayna Jain <nayna@linux.ibm.com>,
Paul Mackerras <paulus@samba.org>,
Peter Zijlstra <peterz@infradead.org>,
Rob Herring <robh@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Valentin Schneider <valentin.schneider@arm.com>,
Alexander Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH v11 3/8] powerpc/perf: consolidate read_user_stack_32
Date: Fri, 03 Apr 2020 21:26:27 +1000 [thread overview]
Message-ID: <1585913065.zoacp2kzsv.astroid@bobo.none> (raw)
In-Reply-To: <20200403105234.GX25468@kitsune.suse.cz>
Michal Suchánek's on April 3, 2020 8:52 pm:
> Hello,
>
> there are 3 variants of the function
>
> read_user_stack_64
>
> 32bit read_user_stack_32
> 64bit read_user_Stack_32
Right.
> On Fri, Apr 03, 2020 at 05:13:25PM +1000, Nicholas Piggin wrote:
[...]
>> #endif /* CONFIG_PPC64 */
>>
>> +static int read_user_stack_32(unsigned int __user *ptr, unsigned int *ret)
>> +{
>> + return __read_user_stack(ptr, ret, sizeof(*ret));
> Does not work for 64bit read_user_stack_32 ^ this should be 4.
>
> Other than that it should preserve the existing logic just fine.
sizeof(int) == 4 on 64bit so it should work.
Thanks,
Nick
next prev parent reply other threads:[~2020-04-03 11:26 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200225173541.1549955-1-npiggin@gmail.com>
2020-03-19 12:19 ` [PATCH v11 0/8] Disable compat cruft on ppc64le v11 Michal Suchanek
2020-03-19 12:19 ` [PATCH v11 1/8] powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro Michal Suchanek
2020-03-19 12:19 ` [PATCH v11 2/8] powerpc: move common register copy functions from signal_32.c to signal.c Michal Suchanek
2020-03-19 12:19 ` [PATCH v11 3/8] powerpc/perf: consolidate read_user_stack_32 Michal Suchanek
2020-03-24 8:48 ` Nicholas Piggin
2020-03-24 19:38 ` Michal Suchánek
2020-04-03 7:13 ` Nicholas Piggin
2020-04-03 10:52 ` Michal Suchánek
2020-04-03 11:26 ` Nicholas Piggin [this message]
2020-04-03 11:51 ` Michal Suchánek
2020-04-06 20:52 ` Michal Suchánek
2020-04-06 21:00 ` [PATCH] powerpcs: perf: consolidate perf_callchain_user_64 and perf_callchain_user_32 Michal Suchanek
2020-04-07 5:21 ` Christophe Leroy
2020-04-09 11:22 ` Michal Suchánek
2020-03-19 12:19 ` [PATCH v11 4/8] powerpc/perf: consolidate valid_user_sp Michal Suchanek
2020-03-19 12:19 ` [PATCH v11 5/8] powerpc/64: make buildable without CONFIG_COMPAT Michal Suchanek
2020-03-24 8:54 ` Nicholas Piggin
2020-03-24 19:30 ` Michal Suchánek
2020-04-03 7:16 ` Nicholas Piggin
2020-03-19 12:19 ` [PATCH v11 6/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default Michal Suchanek
2020-03-19 12:19 ` [PATCH v11 7/8] powerpc/perf: split callchain.c by bitness Michal Suchanek
2020-03-19 12:19 ` [PATCH v11 8/8] MAINTAINERS: perf: Add pattern that matches ppc perf to the perf entry Michal Suchanek
2020-03-19 13:37 ` Andy Shevchenko
2020-03-19 14:00 ` Michal Suchánek
2020-03-19 14:26 ` Andy Shevchenko
2020-03-19 17:03 ` Joe Perches
2020-03-19 12:36 ` [PATCH v11 0/8] Disable compat cruft on ppc64le v11 Christophe Leroy
2020-03-19 14:01 ` Michal Suchánek
2020-04-03 7:25 ` Nicholas Piggin
2020-04-03 7:26 ` Christophe Leroy
2020-04-03 9:43 ` Nicholas Piggin
2020-04-05 0:40 ` Michael Ellerman
2020-03-20 10:20 ` [PATCH v12 0/8] Disable compat cruft on ppc64le v12 Michal Suchanek
2020-03-20 10:20 ` [PATCH v12 1/8] powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro Michal Suchanek
2020-03-20 10:20 ` [PATCH v12 2/8] powerpc: move common register copy functions from signal_32.c to signal.c Michal Suchanek
2020-03-20 10:20 ` [PATCH v12 3/8] powerpc/perf: consolidate read_user_stack_32 Michal Suchanek
2020-03-20 10:20 ` [PATCH v12 4/8] powerpc/perf: consolidate valid_user_sp -> invalid_user_sp Michal Suchanek
2020-03-20 10:20 ` [PATCH v12 5/8] powerpc/64: make buildable without CONFIG_COMPAT Michal Suchanek
2020-04-07 5:50 ` Christophe Leroy
2020-04-07 9:57 ` Michal Suchánek
2020-03-20 10:20 ` [PATCH v12 6/8] powerpc/64: Make COMPAT user-selectable disabled on littleendian by default Michal Suchanek
2020-03-20 10:20 ` [PATCH v12 7/8] powerpc/perf: split callchain.c by bitness Michal Suchanek
2020-03-20 10:20 ` [PATCH v12 8/8] MAINTAINERS: perf: Add pattern that matches ppc perf to the perf entry Michal Suchanek
2020-03-20 10:33 ` Andy Shevchenko
2020-03-20 11:23 ` Michal Suchánek
2020-03-20 12:42 ` Andy Shevchenko
2020-03-20 14:42 ` Joe Perches
2020-03-20 16:28 ` Michal Suchánek
2020-03-20 16:31 ` Andy Shevchenko
2020-03-20 16:42 ` Michal Suchánek
2020-03-20 16:47 ` Andy Shevchenko
2020-03-20 21:36 ` Joe Perches
2020-03-19 11:52 [PATCH v11 0/8] Disable compat cruft on ppc64le v11 Michal Suchanek
2020-03-19 11:52 ` [PATCH v11 3/8] powerpc/perf: consolidate read_user_stack_32 Michal Suchanek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1585913065.zoacp2kzsv.astroid@bobo.none \
--to=npiggin@gmail.com \
--cc=Jonathan.Cameron@huawei.com \
--cc=acme@kernel.org \
--cc=alexander.shishkin@linux.intel.com \
--cc=allison@lohutok.net \
--cc=andriy.shevchenko@linux.intel.com \
--cc=arnd@arndb.de \
--cc=bauerman@linux.ibm.com \
--cc=benh@kernel.crashing.org \
--cc=bigeasy@linutronix.de \
--cc=cclaudio@linux.ibm.com \
--cc=christophe.leroy@c-s.fr \
--cc=davem@davemloft.net \
--cc=ebiederm@xmission.com \
--cc=erichte@linux.ibm.com \
--cc=gregkh@linuxfoundation.org \
--cc=gustavold@linux.ibm.com \
--cc=hbathini@linux.ibm.com \
--cc=jniethe5@gmail.com \
--cc=jolsa@redhat.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mark.rutland@arm.com \
--cc=masahiroy@kernel.org \
--cc=mchehab+huawei@kernel.org \
--cc=mikey@neuling.org \
--cc=mingo@redhat.com \
--cc=mpe@ellerman.id.au \
--cc=msuchanek@suse.de \
--cc=namhyung@kernel.org \
--cc=nayna@linux.ibm.com \
--cc=paulus@samba.org \
--cc=peterz@infradead.org \
--cc=robh@kernel.org \
--cc=tglx@linutronix.de \
--cc=valentin.schneider@arm.com \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).