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Message-ID: <20150602091455.GW19282@twins.programming.kicks-ass.net>
Date: Tue, 2 Jun 2015 11:14:55 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Ingo Molnar <mingo@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Cc: linux-kernel@...r.kernel.org
Subject: [RFC][PATCH] x86: Cleanup Kconfig
While looking at arch/x86/Kconfig I noticed a lot of if X86_{32,64}
clauses in the X86 symbol. Its much simpler to simply but these selects
in the right symbol and do away with the conditionals.
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
arch/x86/Kconfig | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8fec04407245..a259db4cfe8c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -11,6 +11,12 @@ config X86_32
depends on !64BIT
select CLKSRC_I8253
select HAVE_UID16
+ select HAVE_AOUT
+ select HAVE_GENERIC_DMA_COHERENT
+ select ARCH_WANT_IPC_PARSE_VERSION
+ select MODULES_USE_ELF_REL
+ select CLONE_BACKWARDS
+ select OLD_SIGACTION
config X86_64
def_bool y
@@ -18,6 +24,15 @@ config X86_64
select X86_DEV_DMA_OPS
select ARCH_USE_CMPXCHG_LOCKREF
select HAVE_LIVEPATCH
+ select ARCH_SUPPORTS_NUMA_BALANCING
+ select ARCH_SUPPORTS_INT128
+ select HAVE_FENTRY
+ select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP
+ select HAVE_BPF_JIT
+ select HAVE_ARCH_SOFT_DIRTY
+ select HAVE_CONTEXT_TRACKING
+ select MODULES_USE_ELF_RELA
+ select HAVE_IRQ_EXIT_ON_IRQ_STACK
### Arch settings
config X86
@@ -29,10 +44,7 @@ config X86
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
- select HAVE_AOUT if X86_32
select HAVE_UNSTABLE_SCHED_CLOCK
- select ARCH_SUPPORTS_NUMA_BALANCING if X86_64
- select ARCH_SUPPORTS_INT128 if X86_64
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_PCSPKR_PLATFORM
@@ -51,7 +63,6 @@ config X86
select HAVE_OPTPROBES
select HAVE_KPROBES_ON_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_FENTRY if X86_64
select HAVE_C_RECORDMCOUNT
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
@@ -63,7 +74,6 @@ config X86
select HAVE_KVM
select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK
- select HAVE_GENERIC_DMA_COHERENT if X86_32
select HAVE_EFFICIENT_UNALIGNED_ACCESS
select USER_STACKTRACE_SUPPORT
select HAVE_REGS_AND_STACK_ACCESS_API
@@ -86,7 +96,6 @@ config X86
select HAVE_CMPXCHG_LOCAL
select HAVE_CMPXCHG_DOUBLE
select HAVE_ARCH_KMEMCHECK
- select HAVE_ARCH_KASAN if X86_64 && SPARSEMEM_VMEMMAP
select HAVE_USER_RETURN_NOTIFIER
select ARCH_HAS_ELF_RANDOMIZE
select HAVE_ARCH_JUMP_LABEL
@@ -98,7 +107,6 @@ config X86
select GENERIC_IRQ_SHOW
select GENERIC_CLOCKEVENTS_MIN_ADJUST
select IRQ_FORCED_THREADING
- select HAVE_BPF_JIT if X86_64
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_ARCH_HUGE_VMAP if X86_64 || (X86_32 && X86_PAE)
select ARCH_HAS_SG_CHAIN
@@ -107,11 +115,9 @@ config X86
select GENERIC_IOMAP
select DCACHE_WORD_ACCESS
select GENERIC_SMP_IDLE_THREAD
- select ARCH_WANT_IPC_PARSE_VERSION if X86_32
select HAVE_ARCH_SECCOMP_FILTER
select BUILDTIME_EXTABLE_SORT
select GENERIC_CMOS_UPDATE
- select HAVE_ARCH_SOFT_DIRTY if X86_64
select CLOCKSOURCE_WATCHDOG
select GENERIC_CLOCKEVENTS
select ARCH_CLOCKSOURCE_DATA
@@ -120,21 +126,15 @@ config X86
select GENERIC_TIME_VSYSCALL
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
- select HAVE_CONTEXT_TRACKING if X86_64
select HAVE_IRQ_TIME_ACCOUNTING
select VIRT_TO_BUS
- select MODULES_USE_ELF_REL if X86_32
- select MODULES_USE_ELF_RELA if X86_64
- select CLONE_BACKWARDS if X86_32
select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_QUEUED_SPINLOCKS
select ARCH_USE_QUEUED_RWLOCKS
select OLD_SIGSUSPEND3 if X86_32 || IA32_EMULATION
- select OLD_SIGACTION if X86_32
select COMPAT_OLD_SIGACTION if IA32_EMULATION
select RTC_LIB
select HAVE_DEBUG_STACKOVERFLOW
- select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
select HAVE_CC_STACKPROTECTOR
select GENERIC_CPU_AUTOPROBE
select HAVE_ARCH_AUDITSYSCALL
--
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