From ad5b7f1350c263eef0c99c20f8659d0ed363cb32 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 30 Jan 2012 08:02:19 +0000 Subject: powerpc: Make SPARSE_IRQ required All IRQs on powerpc are managed via irq_domain anyway, there isn't really any advantage to turning SPARSE_IRQ off, and it's the direction we want to take the kernel design anyway. This patch makes powerpc always use SPARSE_IRQ. On pseries_defconfig, SPARSE_IRQ adds only about 0x300 bytes to the .text sections, and removes about 0x20000 from the data section for the static irq_desc table. Signed-off-by: Grant Likely Cc: Rob Herring Cc: Ben Herrenschmidt Cc: Thomas Gleixner Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/powerpc/Kconfig') diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 613eacf7f409..4eecaaa54451 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -134,6 +134,7 @@ config PPC select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 select HAVE_GENERIC_HARDIRQS select HAVE_SPARSE_IRQ + select SPARSE_IRQ select IRQ_PER_CPU select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW_LEVEL -- cgit v1.2.3