Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v1] sched/topology: Make compiler happy about unused constant definitions | Date | Mon, 24 Aug 2020 18:39:02 +0300 |
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Compilation of almost each file ends up with
In file included from .../include/linux/energy_model.h:10, from .../include/linux/device.h:16, from .../drivers/spi/spi.c:8: .../include/linux/sched/topology.h:30:27: warning: ‘SD_DEGENERATE_GROUPS_MASK’ defined but not used [-Wunused-const-variable=] 30 | static const unsigned int SD_DEGENERATE_GROUPS_MASK = | ^~~~~~~~~~~~~~~~~~~~~~~~~ ...
Make compiler happy by annotating the static constants with __maybwe_unused.
Fixes: 4ee4ea443a5d ("sched/topology: Introduce SD metaflag for flags needing > 1 groups") Cc: Valentin Schneider <valentin.schneider@arm.com> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- include/linux/sched/topology.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h index 2d59ca77103e..ec440b67599c 100644 --- a/include/linux/sched/topology.h +++ b/include/linux/sched/topology.h @@ -27,14 +27,14 @@ enum { /* Generate a mask of SD flags with the SDF_NEEDS_GROUPS metaflag */ #define SD_FLAG(name, mflags) (name * !!((mflags) & SDF_NEEDS_GROUPS)) | -static const unsigned int SD_DEGENERATE_GROUPS_MASK = +static __maybe_unused const unsigned int SD_DEGENERATE_GROUPS_MASK = #include <linux/sched/sd_flags.h> 0; #undef SD_FLAG #ifdef CONFIG_SCHED_DEBUG #define SD_FLAG(_name, mflags) [__##_name] = { .meta_flags = mflags, .name = #_name }, -static const struct { +static __maybe_unused const struct { unsigned int meta_flags; char *name; } sd_flag_debug[] = { -- 2.28.0
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