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Subject[PATCH 2/2] tools: gpio: fix %llu warning in gpio-watch.c
Date
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: commit 33f0c47b8fb4 ("tools: gpio: implement gpio-watch")
Signed-off-by: Kent Gibson <warthog618@gmail.com>
---
tools/gpio/gpio-watch.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/gpio/gpio-watch.c b/tools/gpio/gpio-watch.c
index f229ec62301b..41e76d244192 100644
--- a/tools/gpio/gpio-watch.c
+++ b/tools/gpio/gpio-watch.c
@@ -10,6 +10,7 @@
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
+#include <inttypes.h>
#include <linux/gpio.h>
#include <poll.h>
#include <stdbool.h>
@@ -86,8 +87,8 @@ int main(int argc, char **argv)
return EXIT_FAILURE;
}

- printf("line %u: %s at %llu\n",
- chg.info.offset, event, chg.timestamp_ns);
+ printf("line %u: %s at %" PRIu64 "\n",
+ chg.info.offset, event, (uint64_t)chg.timestamp_ns);
}
}

--
2.30.0
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