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| author | Arnd Bergmann <arnd@arndb.de> | 2016-04-25 17:35:31 +0200 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2018-11-29 16:57:56 +0100 |
| commit | dbda1f4696242f793cb0f6d560a69aa7ad2f79d2 (patch) | |
| tree | edc69b340cc4d61203dbf26ab0504fdada4eff64 | |
| parent | 9b9bc2d37f3351ea89b5139ba4768fa8877d2a51 (diff) | |
gcov: disable -Wmaybe-uninitialized warning
When gcov profiling is enabled, we see a lot of spurious warnings about
possibly uninitialized variables being used:
arch/arm/mm/dma-mapping.c: In function 'arm_coherent_iommu_map_page':
arch/arm/mm/dma-mapping.c:1085:16: warning: 'start' may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/clk/st/clk-flexgen.c: In function 'st_of_flexgen_setup':
drivers/clk/st/clk-flexgen.c:323:9: warning: 'num_parents' may be used uninitialized in this function [-Wmaybe-uninitialized]
kernel/cgroup.c: In function 'cgroup_mount':
kernel/cgroup.c:2119:11: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized]
All of these are false positives, so it seems better to just disable
the warnings whenever GCOV is enabled. Most users don't enable GCOV,
and based on a prior patch, it is now also disabled for 'allmodconfig'
builds, so there should be no downsides of doing this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
| -rw-r--r-- | Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -361,7 +361,7 @@ AFLAGS_MODULE = LDFLAGS_MODULE = --strip-debug CFLAGS_KERNEL = AFLAGS_KERNEL = -CFLAGS_GCOV = -fprofile-arcs -ftest-coverage -fno-tree-loop-im +CFLAGS_GCOV = -fprofile-arcs -ftest-coverage -fno-tree-loop-im -Wno-maybe-uninitialized # Use USERINCLUDE when you must reference the UAPI directories only. |