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authorNick Desaulniers <ndesaulniers@google.com>2021-01-21 16:23:51 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2021-01-22 15:51:30 +0100
commitc1a7c2ce7c37a9c51228848647b9908b1cb532d1 (patch)
tree6d259114467d581688c4cb7ae448bf784364c08b /include/acpi/actypes.h
parent25d866c46c1d58083fa783703484f8473d61db54 (diff)
ACPICA: fix -Wfallthrough
ACPICA commit 4b9135f5774caa796ddf826448811e8e7f08ef2f GCC 7.1 gained -Wimplicit-fallthrough to warn on implicit fallthrough, as well as __attribute__((__fallthrough__)) and comments to explicitly denote that cases of fallthrough were intentional. Clang also supports this warning and statement attribute, but not the comment form. Robert Moore provides additional context about the lint comments being removed. They were for "an old version of PC-Lint, which we don't use anymore." Drop those. This will help us enable -Wimplicit-fallthrough throughout the Linux kernel. Suggested-by: Robert Moore <robert.moore@intel.com> Reported-by: Jon Hunter <jonathanh@nvidia.com> Link: https://github.com/acpica/acpica/commit/4b9135f5 Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Kaneda <erik.kaneda@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi/actypes.h')
-rw-r--r--include/acpi/actypes.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 647cb11d0a0a..2a32593691bc 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1286,4 +1286,10 @@ typedef enum {
#define ACPI_OPT_END -1
+/* Definitions for explicit fallthrough */
+
+#ifndef ACPI_FALLTHROUGH
+#define ACPI_FALLTHROUGH do {} while(0)
+#endif
+
#endif /* __ACTYPES_H__ */