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| author | Heiko Carstens <hca@linux.ibm.com> | 2024-06-09 22:02:19 +0300 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2024-06-24 12:12:39 +0300 |
| commit | 7c67928648188d193c9f73679f7e6aa67d088237 (patch) | |
| tree | 6fad25c850bde3014c0db794ce7f050f456ab360 /arch/s390/Kconfig | |
| parent | 447360d75cf473d4b1048a7204443262f3f60758 (diff) | |
| download | linux-7c67928648188d193c9f73679f7e6aa67d088237.tar.xz | |
s390: Provide optimized __arch_hweight*() implementations
Make use of the popcnt instruction to provide optimized __arch_hweight*()
implementations. The generated code is shorter and avoids rather expensive
functions calls.
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
| -rw-r--r-- | arch/s390/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index c59d2b54df49..9788ae5e930b 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -21,7 +21,7 @@ config ARCH_PROC_KCORE_TEXT def_bool y config GENERIC_HWEIGHT - def_bool y + def_bool !HAVE_MARCH_Z196_FEATURES config GENERIC_BUG def_bool y if BUG |