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Date:   Sun,  8 Oct 2017 19:43:37 +1100 (AEDT)
From:   Michael Ellerman <>
To:     Seth Forshee <>,
        Benjamin Herrenschmidt <>,
        Paul Mackerras <>,
        Shuah Khan <>
Cc:     Seth Forshee <>,,,
Subject: Re: selftests/powerpc: Use snprintf to construct DSCR sysfs interface paths

On Thu, 2017-09-28 at 13:34:26 UTC, Seth Forshee wrote:
> Currently sprintf is used, and while paths should never exceed
> the size of the buffer it is theoretically possible since
> dirent.d_name is 256 bytes. As a result this trips
> -Wformat-overflow, and since the test is built with -Wall -Werror
> the causes the build to fail. Switch to using snprintf and skip
> any paths which are too long for the filename buffer.
> Signed-off-by: Seth Forshee <>

Applied to powerpc next, thanks.


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