Re: 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=]

From: Naresh Kamboju
Date: Thu Jan 06 2022 - 07:08:38 EST


On Thu, 6 Jan 2022 at 16:07, Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> 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",

<trim>

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

This is a known warning on Linus's tree.
The fix should come from Linus's tree.

- Naresh