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authorGustavo A. R. Silva <gustavo@embeddedor.com>2019-08-20 20:26:44 -0500
committerGustavo A. R. Silva <gustavo@embeddedor.com>2019-08-29 11:05:17 -0500
commit00a0c8451abcea98a7ea4abf583a308a6513d8ba (patch)
treedd249598185b5b83b124481b90fa30f4bf182062
parent609488bc979f99f805f34e9a32c1e3b71179d10b (diff)
downloadlinux-00a0c8451abcea98a7ea4abf583a308a6513d8ba.tar.bz2
ARC: unwind: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through. This patch fixes the following warnings (Building: haps_hs_defconfig arc): arch/arc/kernel/unwind.c: In function ‘read_pointer’: ./include/linux/compiler.h:328:5: warning: this statement may fall through [-Wimplicit-fallthrough=] do { \ ^ ./include/linux/compiler.h:338:2: note: in expansion of macro ‘__compiletime_assert’ __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~~~~~~~~~~~~ ./include/linux/compiler.h:350:2: note: in expansion of macro ‘_compiletime_assert’ _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^~~~~~~~~~~~~~~~~~~ ./include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’ #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~~~~~~~~~~~~~~~ ./include/linux/build_bug.h:50:2: note: in expansion of macro ‘BUILD_BUG_ON_MSG’ BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^~~~~~~~~~~~~~~~ arch/arc/kernel/unwind.c:573:3: note: in expansion of macro ‘BUILD_BUG_ON’ BUILD_BUG_ON(sizeof(u32) != sizeof(value)); ^~~~~~~~~~~~ arch/arc/kernel/unwind.c:575:2: note: here case DW_EH_PE_native: ^~~~ Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
-rw-r--r--arch/arc/kernel/unwind.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index c2663fce7f6c..725adfcdd116 100644
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -572,6 +572,7 @@ static unsigned long read_pointer(const u8 **pLoc, const void *end,
#else
BUILD_BUG_ON(sizeof(u32) != sizeof(value));
#endif
+ /* Fall through */
case DW_EH_PE_native:
if (end < (const void *)(ptr.pul + 1))
return 0;