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tools/gpio/gpio-event-mon: fix warning

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PRIu64 is defined in user space to match libc's uint64_t definition.
However, gpioevent_data structure in the kernel is defined using the
kernel's own __u64 type.

gpio-event-mon.c: In function ‘monitor_device’:
gpio-event-mon.c:102:19: warning: format ‘%lu’ expects argument of type
    ‘long unsigned int’, but argument 3 has type ‘__u64 {aka long long
    unsigned int}’ [-Wformat=]
   fprintf(stdout, "GPIO EVENT %" PRIu64 ": ", event.timestamp);
                   ^~~~~~~~~~~~~~
  LD       /tmp/kselftest/gpiogpio-event-mon-in.o
  LINK     /tmp/kselftest/gpiogpio-event-mon

Fix is to replace PRIu64 with llu, which we know is what the kernel uses
for __u64.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Tested-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Anders Roxell 2018-02-21 22:33:34 +01:00 • committed by Linus Walleij
parent b995ff3b30
commit 03fd11b033
1 changed files with 1 additions and 1 deletions
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2
tools/gpio/gpio-event-mon.c
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@ -99,7 +99,7 @@ int monitor_device(const char *device_name,
ret = -EIO;
break;
}
fprintf(stdout, "GPIO EVENT %" PRIu64 ": ", event.timestamp);
fprintf(stdout, "GPIO EVENT %llu: ", event.timestamp);
switch (event.id) {
case GPIOEVENT_EVENT_RISING_EDGE:
fprintf(stdout, "rising edge");