From bab1dde31db5413d4c75c99cf3f08c4a2e1c1b9d Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Thu, 25 Feb 2021 05:57:00 -0800 Subject: [PATCH] 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 Signed-off-by: Alexander Lobakin Signed-off-by: Yury Norov Signed-off-by: Thomas Bogendoerfer --- arch/mips/Kconfig | 1 + 1 file changed, 1 insertion(+) 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 -- 2.11.0