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SubjectRe: txtimestamp.c:164:29: warning: format '0' expects argument of type 'long unsigned int', but argument 3 has type 'int64_t' {aka 'long long int'} [-Wformat=]
On Thu, Jan 06, 2022 at 03:39:09PM +0530, Naresh Kamboju wrote:
> While building selftests the following warnings were noticed for arm
> architecture on Linux stable v5.15.13 kernel and also on Linus's tree.
>
> arm-linux-gnueabihf-gcc -Wall -Wl,--no-as-needed -O2 -g
> -I../../../../usr/include/ txtimestamp.c -o
> /home/tuxbuild/.cache/tuxmake/builds/current/kselftest/net/txtimestamp
> txtimestamp.c: In function 'validate_timestamp':
> txtimestamp.c:164:29: warning: format '0' expects argument of type
> 'long unsigned int', but argument 3 has type 'int64_t' {aka 'long long
> int'} [-Wformat=]
> 164 | fprintf(stderr, "ERROR: 0 us expected between 0 and 0\n",
> | ~~^
> | |
> | long unsigned int
> | 0
> 165 | cur64 - start64, min_delay, max_delay);
> | ~~~~~~~~~~~~~~~
> | |
> | int64_t {aka long long int}
> txtimestamp.c: In function '__print_ts_delta_formatted':
> txtimestamp.c:173:22: warning: format '0' expects argument of type
> 'long unsigned int', but argument 3 has type 'int64_t' {aka 'long long
> int'} [-Wformat=]
> 173 | fprintf(stderr, "0 ns", ts_delta);
> | ~~^ ~~~~~~~~
> | | |
> | | int64_t {aka long long int}
> | long unsigned int
> | 0
> txtimestamp.c:175:22: warning: format '0' expects argument of type
> 'long unsigned int', but argument 3 has type 'int64_t' {aka 'long long
> int'} [-Wformat=]
> 175 | fprintf(stderr, "0 us", ts_delta / NSEC_PER_USEC);
> | ~~^
> | |
> | long unsigned int
> | 0
>
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
>
> build link:
> https://builds.tuxbuild.com/23HFntxpqyCx0RbiuadfGZ36Kym/
>
> metadata:
> git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
> git commit: 734eb1fd2073f503f5c6b44f1c0d453ca6986b84
> git describe: v5.15.13
> toolchain: gcc-11
> kernel-config: https://builds.tuxbuild.com/23HFntxpqyCx0RbiuadfGZ36Kym/config
>
>
> # To install tuxmake on your system globally:
> # sudo pip3 install -U tuxmake
>
> tuxmake --runtime podman --target-arch arm --toolchain gcc-10 \
> --kconfig https://builds.tuxbuild.com/23HFntxpqyCx0RbiuadfGZ36Kym/config \
> dtbs dtbs-legacy headers kernel kselftest kselftest-merge modules

Same question as before, is this a regression, and if so, any pointers
to a fix?

thanks,

greg k-h

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