pmaports/device/testing/linux-asus-z00vd/01_fix_warnings.patch
Oliver Smith 64035ac463
device/*: move to device/testing/* (!1063)
Prepare for better device categorization by moving everything to testing
subdir first.

[skip-ci]: chicken-egg problem: passing pmaports CI depends on pmbootstrap MR
				depends on this MR

Related: postmarketos#16
2020-03-14 08:35:32 +01:00

51 lines
1.5 KiB
Diff

diff --git a/include/linux/log2.h b/include/linux/log2.h
index fd7ff3d91e6a..4b0c8edcb947 100644
--- a/include/linux/log2.h
+++ b/include/linux/log2.h
@@ -15,12 +15,6 @@
#include <linux/types.h>
#include <linux/bitops.h>
-/*
- * deal with unrepresentable constant logarithms
- */
-extern __attribute__((const, noreturn))
-int ____ilog2_NaN(void);
-
/*
* non-constant log of base 2 calculators
* - the arch may override these in asm/bitops.h if they can be implemented
@@ -85,7 +79,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
#define ilog2(n) \
( \
__builtin_constant_p(n) ? ( \
- (n) < 1 ? ____ilog2_NaN() : \
+ (n) < 2 ? 0 : \
(n) & (1ULL << 63) ? 63 : \
(n) & (1ULL << 62) ? 62 : \
(n) & (1ULL << 61) ? 61 : \
@@ -148,10 +142,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
(n) & (1ULL << 4) ? 4 : \
(n) & (1ULL << 3) ? 3 : \
(n) & (1ULL << 2) ? 2 : \
- (n) & (1ULL << 1) ? 1 : \
- (n) & (1ULL << 0) ? 0 : \
- ____ilog2_NaN() \
- ) : \
+ 1 ) : \
(sizeof(n) <= 4) ? \
__ilog2_u32(n) : \
__ilog2_u64(n) \
diff --git a/Makefile b/Makefile
index 591a38331223..8d15418cd7e7 100644
--- a/Makefile
+++ b/Makefile
@@ -610,6 +610,7 @@ all: vmlinux
include $(srctree)/arch/$(SRCARCH)/Makefile
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
+KBUILD_CFLAGS += $(call cc-disable-warning, attribute-alias)
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)