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| author | Alexander Lobakin <alobakin@pm.me> | 2021-02-25 14:57:00 +0100 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2021-03-06 08:43:40 +0100 |
| commit | bab1dde31db5413d4c75c99cf3f08c4a2e1c1b9d (patch) | |
| tree | de9e26a9c1e058d183102c89ce6ceb2e85cf4291 /arch/mips/Kconfig | |
| parent | MIPS: select CPU_MIPS64 for remaining MIPS64 CPUs (diff) | |
| download | linux-bab1dde31db5413d4c75c99cf3f08c4a2e1c1b9d.tar.xz linux-bab1dde31db5413d4c75c99cf3f08c4a2e1c1b9d.zip | |
MIPS: enable GENERIC_FIND_FIRST_BIT
MIPS doesn't have architecture-optimized bitsearching functions,
like find_{first,next}_bit() etc.
It's absolutely harmless to enable GENERIC_FIND_FIRST_BIT as this
functionality is not new at all and well-tested. It provides more
optimized code and saves some .text memory (32 R2):
add/remove: 4/1 grow/shrink: 1/53 up/down: 216/-372 (-156)
Users of for_each_set_bit() like hotpath gic_handle_shared_int()
will also benefit from this.
Suggested-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to '')
| -rw-r--r-- | arch/mips/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 3e0e8f1d2e82..f0d412a04f09 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -26,6 +26,7 @@ config MIPS select GENERIC_ATOMIC64 if !64BIT select GENERIC_CMOS_UPDATE select GENERIC_CPU_AUTOPROBE + select GENERIC_FIND_FIRST_BIT select GENERIC_GETTIMEOFDAY select GENERIC_IOMAP select GENERIC_IRQ_PROBE |