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authorIngo Molnar <mingo@kernel.org>2025-05-21 08:42:51 +0200
committerIngo Molnar <mingo@kernel.org>2025-05-21 08:45:03 +0200
commit412751aa6991501d7defeadecfede59043d1b5e8 (patch)
treeee5026e79128dd4eacb935f76564d7dcc105b24f /scripts/Makefile.extrawarn
parente95534e107d2e9e136aa4d7cbededb3827e80074 (diff)
parenta5806cd506af5a7c19bcd596e4708b5c464bfd21 (diff)
Merge tag 'v6.15-rc7' into x86/core, to pick up fixes
Pick up build fixes from upstream to make this tree more testable. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts/Makefile.extrawarn')
-rw-r--r--scripts/Makefile.extrawarn12
1 files changed, 12 insertions, 0 deletions
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index d88acdf40855..fd649c68e198 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -37,6 +37,18 @@ KBUILD_CFLAGS += -Wno-gnu
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111219
KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow-non-kprintf)
KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation-non-kprintf)
+
+# Clang may emit a warning when a const variable, such as the dummy variables
+# in typecheck(), or const member of an aggregate type are not initialized,
+# which can result in unexpected behavior. However, in many audited cases of
+# the "field" variant of the warning, this is intentional because the field is
+# never used within a particular call path, the field is within a union with
+# other non-const members, or the containing object is not const so the field
+# can be modified via memcpy() / memset(). While the variable warning also gets
+# disabled with this same switch, there should not be too much coverage lost
+# because -Wuninitialized will still flag when an uninitialized const variable
+# is used.
+KBUILD_CFLAGS += $(call cc-disable-warning, default-const-init-unsafe)
else
# gcc inanely warns about local variables called 'main'