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| author | Takashi Iwai <tiwai@suse.de> | 2018-06-21 14:00:41 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-06-21 14:00:41 +0200 |
| commit | 8b9600eeba31c3b9e0f723d30a67d7f28616c578 (patch) | |
| tree | 7cab77643e5905e72e191178c2ef24e706949624 | |
| parent | b7734ec4cf432f6bdb2ce3456fc748e15cd95fbd (diff) | |
| download | hda-emu-8b9600eeba31c3b9e0f723d30a67d7f28616c578.tar.gz | |
Fix gcc8 warnings with log2.h
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | include/linux/log2.h | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/include/linux/log2.h b/include/linux/log2.h index d208c34..c506e7e 100644 --- a/include/linux/log2.h +++ b/include/linux/log2.h @@ -2,12 +2,6 @@ #define _LINUX_LOG2_H /* - * deal with unrepresentable constant logarithms - */ -extern __attribute__((const, noreturn)) -int ____ilog2_NaN(void); - -/* * Determine whether some value is a power of two, where zero is * *not* considered a power of two. */ @@ -30,7 +24,7 @@ bool is_power_of_2(unsigned long n) */ #define ilog2(n) \ ( \ - (n) < 1 ? ____ilog2_NaN() : \ + (n) < 2 ? 0 : \ (n) & (1ULL << 63) ? 63 : \ (n) & (1ULL << 62) ? 62 : \ (n) & (1ULL << 61) ? 61 : \ @@ -94,8 +88,7 @@ bool is_power_of_2(unsigned long n) (n) & (1ULL << 3) ? 3 : \ (n) & (1ULL << 2) ? 2 : \ (n) & (1ULL << 1) ? 1 : \ - (n) & (1ULL << 0) ? 0 : \ - ____ilog2_NaN() \ + 0 \ ) /** |