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Re: [PATCH 2/3] xen: silence maybe-unitialized warning



On 29.07.24 16:24, Stewart Hildebrand wrote:
When building with gcc with -finstrument-functions, optimization level
-O1, CONFIG_HYPFS=y and # CONFIG_HAS_SCHED_GRANULARITY is not set, the
the following build warning (error) is encountered:

common/sched/cpupool.c: In function ‘cpupool_gran_write’:
common/sched/cpupool.c:1220:26: error: ‘gran’ may be used uninitialized 
[-Werror=maybe-uninitialized]
  1220 |                      0 : cpupool_check_granularity(gran);
       |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
common/sched/cpupool.c:1207:21: note: ‘gran’ declared here
  1207 |     enum sched_gran gran;
       |                     ^~~~

This is a false positive. Silence the warning (error) by initializing
the variable.

Signed-off-by: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>

Reviewed-by: Juergen Gross <jgross@xxxxxxxx>


Juergen




 


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