Joel Sherrill commented on a discussion on bsps/shared/dev/gpio/gpio-support.c: 
https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1229#note_149554

 > -                                                        ) == 
 > RTEMS_SUCCESSFUL )
 > -
 > -#define RELEASE_LOCK(m) assert ( rtems_semaphore_release(m) == 
 > RTEMS_SUCCESSFUL )
 > +#define ACQUIRE_LOCK(m) \
 > +  do { \
 > +    sc = rtems_semaphore_obtain(_m, RTEMS_WAIT, RTEMS_NO_TIMEOUT); \
 > +    _Assert( sc == RTEMS_SUCCESSFUL ); \
 > +    (void) sc; \
 > +  while (0)
 > +
 > +#define RELEASE_LOCK(_m) \
 > +  do { \
 > +    sc = rtems_semaphore_release(_m); \
 > +    _Assert( sc == RTEMS_SUCCESSFUL ); \
 > +    (void) sc; \
 > +  while (0)

That may be possible but the code has a single mutex plus an array of them. I 
am happy to resolve this with an issue but I think this is too big a change to 
make under the banner of "fixing warnings" without a way to test. Can I resolve 
with an issue?

-- 
View it on GitLab: 
https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1229#note_149554
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