mac80211: drop check for DONT_REORDER in __ieee80211_select_queue
[linux-2.6-microblaze.git] / Makefile
index 6f2e233..d83d72c 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -850,44 +850,6 @@ ifdef CONFIG_ZERO_CALL_USED_REGS
 KBUILD_CFLAGS  += -fzero-call-used-regs=used-gpr
 endif
 
-DEBUG_CFLAGS   :=
-
-ifdef CONFIG_DEBUG_INFO
-
-ifdef CONFIG_DEBUG_INFO_SPLIT
-DEBUG_CFLAGS   += -gsplit-dwarf
-else
-DEBUG_CFLAGS   += -g
-endif
-
-ifndef CONFIG_AS_IS_LLVM
-KBUILD_AFLAGS  += -Wa,-gdwarf-2
-endif
-
-ifndef CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
-dwarf-version-$(CONFIG_DEBUG_INFO_DWARF4) := 4
-dwarf-version-$(CONFIG_DEBUG_INFO_DWARF5) := 5
-DEBUG_CFLAGS   += -gdwarf-$(dwarf-version-y)
-endif
-
-ifdef CONFIG_DEBUG_INFO_REDUCED
-DEBUG_CFLAGS   += -fno-var-tracking
-ifdef CONFIG_CC_IS_GCC
-DEBUG_CFLAGS   += -femit-struct-debug-baseonly
-endif
-endif
-
-ifdef CONFIG_DEBUG_INFO_COMPRESSED
-DEBUG_CFLAGS   += -gz=zlib
-KBUILD_AFLAGS  += -gz=zlib
-KBUILD_LDFLAGS += --compress-debug-sections=zlib
-endif
-
-endif # CONFIG_DEBUG_INFO
-
-KBUILD_CFLAGS += $(DEBUG_CFLAGS)
-export DEBUG_CFLAGS
-
 ifdef CONFIG_FUNCTION_TRACER
 ifdef CONFIG_FTRACE_MCOUNT_USE_CC
   CC_FLAGS_FTRACE      += -mrecord-mcount
@@ -984,7 +946,7 @@ KBUILD_CFLAGS += -falign-functions=64
 endif
 
 # arch Makefile may override CC so keep this after arch Makefile is included
-NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+NOSTDINC_FLAGS += -nostdinc
 
 # warn about C99 declaration after statement
 KBUILD_CFLAGS += -Wdeclaration-after-statement
@@ -1011,6 +973,21 @@ ifdef CONFIG_CC_IS_GCC
 KBUILD_CFLAGS += -Wno-maybe-uninitialized
 endif
 
+ifdef CONFIG_CC_IS_GCC
+# The allocators already balk at large sizes, so silence the compiler
+# warnings for bounds checks involving those possible values. While
+# -Wno-alloc-size-larger-than would normally be used here, earlier versions
+# of gcc (<9.1) weirdly don't handle the option correctly when _other_
+# warnings are produced (?!). Using -Walloc-size-larger-than=SIZE_MAX
+# doesn't work (as it is documented to), silently resolving to "0" prior to
+# version 9.1 (and producing an error more recently). Numeric values larger
+# than PTRDIFF_MAX also don't work prior to version 9.1, which are silently
+# ignored, continuing to default to PTRDIFF_MAX. So, left with no other
+# choice, we must perform a versioned check to disable this warning.
+# https://lore.kernel.org/lkml/20210824115859.187f272f@canb.auug.org.au
+KBUILD_CFLAGS += $(call cc-ifversion, -ge, 0901, -Wno-alloc-size-larger-than)
+endif
+
 # disable invalid "can't wrap" optimizations for signed / pointers
 KBUILD_CFLAGS  += -fno-strict-overflow
 
@@ -1036,6 +1013,7 @@ KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 
 # include additional Makefiles when needed
 include-y                      := scripts/Makefile.extrawarn
+include-$(CONFIG_DEBUG_INFO)   += scripts/Makefile.debug
 include-$(CONFIG_KASAN)                += scripts/Makefile.kasan
 include-$(CONFIG_KCSAN)                += scripts/Makefile.kcsan
 include-$(CONFIG_UBSAN)                += scripts/Makefile.ubsan