linux-kernel - Re: [BUGFIX PATCH 0/5] selftests: Fixes for 32bit arch

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Message-Id: <20191021162445.3f35341ecad791757c0bc043@kernel.org>
Date:   Mon, 21 Oct 2019 16:24:45 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     shuah <shuah@...nel.org>
Cc:     linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        jaswinder.singh@...aro.org
Subject: Re: [BUGFIX PATCH 0/5] selftests: Fixes for 32bit arch

Hi Shuah,

On Fri, 18 Oct 2019 15:45:56 -0600
shuah <shuah@...nel.org> wrote:

> On 10/7/19 9:10 AM, Masami Hiramatsu wrote:
> > Hi,
> > 
> > Here are some patches to fix some warnings/issues on 32bit arch
> > (e.g. arm).
> > 
> > When I built the ksefltest on arm, I hit some 32bit related warnings.
> > Here are the patches to fix those issues.
> > 
> > 
> >   - [1/5] va_max was set 2^32 even on 32bit arch. This can make
> >          va_max == 0 and always fail. Make it 3GB on 32bit.
> >   - [2/5] Some VM tests requires 64bit user space, which should
> >          not run on 32bit arch.
> >   - [3/5] For counting the size of large file, we should use
> >          size_t instead of unsinged long.
> >   - [4/5] Gcc warns printf format for size_t and int64_t on
> >          32bit arch. Use %llu and cast it.
> >   - [5/5] Gcc warns __u64 and pointer type castings. It should
> >          once translated to unsigned long.
> > 
> > Thank you,
> > 
> > ---
> > 
> > Masami Hiramatsu (5):
> >        selftests: proc: Make va_max 3GB on 32bit arch
> >        selftests: vm: Build/Run 64bit tests only on 64bit arch
> >        selftests: net: Use size_t and ssize_t for counting file size
> >        selftests: net: Fix printf format warnings on arm
> >        selftests: sync: Fix cast warnings on arm
> > 
> > 
> >   tools/testing/selftests/net/so_txtime.c            |    4 ++--
> >   tools/testing/selftests/net/tcp_mmap.c             |    8 ++++----
> >   tools/testing/selftests/net/udpgso.c               |    3 ++-
> >   tools/testing/selftests/net/udpgso_bench_tx.c      |    3 ++-
> >   .../selftests/proc/proc-self-map-files-002.c       |   11 ++++++++++-
> >   tools/testing/selftests/sync/sync.c                |    6 +++---
> >   tools/testing/selftests/vm/Makefile                |    5 +++++
> >   tools/testing/selftests/vm/run_vmtests             |   10 ++++++++++
> >   8 files changed, 38 insertions(+), 12 deletions(-)
> > 
> > --
> > Masami Hiramatsu (Linaro) <mhiramat@...nel.org>
> > 
> 
> Hi Masami,
> 
> I would love to pull these in. But looks like these are spread out
> across several sub-systems.

Right.

> 
> There are some comments on vm patch. Do you mind sending them again
> cc'ing everybody on the cover-letter. Looks like these are getting
> lost in the noise.
> 

OK, I'll update it and resend.

Thank you,


> thanks,
> -- Shuah


-- 
Masami Hiramatsu <mhiramat@...nel.org>