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tools: gpio: fix %llu warning in gpio-watch.c

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Some platforms, such as mips64, don't map __u64 to long long unsigned
int so using %llu produces a warning:

gpio-watch.c: In function ‘main’:
gpio-watch.c:89:30: warning: format ‘%llu’ expects argument of type ‘long long unsigned int’, but argument 4 has type ‘__u64’ {aka ‘long unsigned int’} [-Wformat=]
   89 |    printf("line %u: %s at %llu\n",
      |                           ~~~^
      |                              |
      |                              long long unsigned int
      |                           %lu
   90 |           chg.info.offset, event, chg.timestamp_ns);
      |                                   ~~~~~~~~~~~~~~~~
      |                                      |
      |                                      __u64 {aka long unsigned int}

Replace the %llu with PRIu64 and cast the argument to uint64_t.

Fixes: 33f0c47b8f ("tools: gpio: implement gpio-watch")
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This commit is contained in:
Kent Gibson 2021-01-07 12:00:20 +08:00 committed by Bartosz Golaszewski
parent 2fe7c2f994
commit 1fc7c1ef37
1 changed files with 3 additions and 2 deletions
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5
tools/gpio/gpio-watch.c
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@ -10,6 +10,7 @@
#include <ctype.h> #include <ctype.h>
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
#include <inttypes.h>
#include <linux/gpio.h> #include <linux/gpio.h>
#include <poll.h> #include <poll.h>
#include <stdbool.h> #include <stdbool.h>
@ -86,8 +87,8 @@ int main(int argc, char **argv)
return EXIT_FAILURE; return EXIT_FAILURE;
} }
printf("line %u: %s at %llu\n", printf("line %u: %s at %" PRIu64 "\n",
chg.info.offset, event, chg.timestamp_ns); chg.info.offset, event, (uint64_t)chg.timestamp_ns);
} }
} }