diff mbox series

[08/11] lib: consolidate the GENERIC_BUG symbol

Message ID 20190213174005.28785-9-hch@lst.de (mailing list archive)
State New, archived
Headers show
Series [01/11] powerpc: remove dead ifdefs in <asm/checksum.h> | expand

Commit Message

Christoph Hellwig Feb. 13, 2019, 5:40 p.m. UTC 
And just let the architectures that want it select the symbol.
Same for GENERIC_BUG_RELATIVE_POINTERS.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/arm/Kconfig     |  5 +----
 arch/arm64/Kconfig   | 10 ++--------
 arch/c6x/Kconfig     |  5 +----
 arch/hexagon/Kconfig |  5 +----
 arch/parisc/Kconfig  |  6 +-----
 arch/powerpc/Kconfig |  6 +-----
 arch/riscv/Kconfig   | 10 ++--------
 arch/s390/Kconfig    |  8 ++------
 arch/sh/Kconfig      |  5 +----
 arch/x86/Kconfig     | 10 ++--------
 lib/Kconfig          |  6 ++++++
 11 files changed, 20 insertions(+), 56 deletions(-)

Comments

Masahiro Yamada Feb. 15, 2019, 8:42 a.m. UTC | #1 
On Thu, Feb 14, 2019 at 2:40 AM Christoph Hellwig <hch@lst.de> wrote:
>
> And just let the architectures that want it select the symbol.
> Same for GENERIC_BUG_RELATIVE_POINTERS.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>


This slightly changes the behavior of GENERIC_BUG_RELATIVE_POINTERS
for arm64, riscv, x86.
Previously, GENERIC_BUG_RELATIVE_POINTERS was enabled only when BUG=y.


Having said that, this is not a big deal.
When CONFIG_GENERIC_BUG=n, CONFIG_GENERIC_BUG_RELATIVE_POINTERS
is actually don't care.



If you change this,
could you add some comments in commit description?


> ---

> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index c39dac831f08..913b2ca7ec22 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -85,6 +85,8 @@ config ARM64
>         select FRAME_POINTER
>         select GENERIC_ALLOCATOR
>         select GENERIC_ARCH_TOPOLOGY
> +       select GENERIC_BUG if BUG
> +       select GENERIC_BUG_RELATIVE_POINTERS

Precisely,

          select GENERIC_BUG_RELATIVE_POINTERS if BUG




> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 732614eb3683..c410ed896567 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -19,6 +19,8 @@ config RISCV
>         select ARCH_WANT_FRAME_POINTERS
>         select CLONE_BACKWARDS
>         select COMMON_CLK
> +       select GENERIC_BUG if BUG
> +       select GENERIC_BUG_RELATIVE_POINTERS if 64BIT

Precisely,

          select GENERIC_BUG_RELATIVE_POINTERS if 64BIT && BUG


> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index 15ccdd04814e..2a5c12be633e 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -17,12 +17,6 @@ config ARCH_HAS_ILOG2_U64
>  config GENERIC_HWEIGHT
>         def_bool y
>
> -config GENERIC_BUG
> -       def_bool y if BUG
> -
> -config GENERIC_BUG_RELATIVE_POINTERS
> -       def_bool y
> -


Hmm, s390 enables GENERIC_BUG_RELATIVE_POINTERS
irrespective of BUG...





> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 1bd4f19b6b28..f4cb31174e1b 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -91,6 +91,8 @@ config X86
>         select DCACHE_WORD_ACCESS
>         select EDAC_ATOMIC_SCRUB
>         select EDAC_SUPPORT
> +       select GENERIC_BUG                      if BUG
> +       select GENERIC_BUG_RELATIVE_POINTERS    if X86_64

Precisely,

          select GENERIC_BUG_RELATIVE_POINTERS    if X86_64 && BUG






--
Best Regards
Masahiro Yamada
diff mbox series

Patch

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 96780ab64a2e..c230fb1e09ba 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -36,6 +36,7 @@  config ARM
 	select GENERIC_ALLOCATOR
 	select GENERIC_ARCH_TOPOLOGY if ARM_CPU_TOPOLOGY
 	select GENERIC_ATOMIC64 if CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI
+	select GENERIC_BUG if BUG
 	select GENERIC_CALIBRATE_DELAY
 	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 	select GENERIC_CPU_AUTOPROBE
@@ -256,10 +257,6 @@  config PHYS_OFFSET
 	  Please provide the physical address corresponding to the
 	  location of main memory in your system.
 
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-
 config PGTABLE_LEVELS
 	int
 	default 3 if ARM_LPAE
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c39dac831f08..913b2ca7ec22 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -85,6 +85,8 @@  config ARM64
 	select FRAME_POINTER
 	select GENERIC_ALLOCATOR
 	select GENERIC_ARCH_TOPOLOGY
+	select GENERIC_BUG if BUG
+	select GENERIC_BUG_RELATIVE_POINTERS
 	select GENERIC_CALIBRATE_DELAY
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CLOCKEVENTS_BROADCAST
@@ -234,14 +236,6 @@  config ILLEGAL_POINTER_VALUE
 	hex
 	default 0xdead000000000000
 
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-
-config GENERIC_BUG_RELATIVE_POINTERS
-	def_bool y
-	depends on GENERIC_BUG
-
 config GENERIC_HWEIGHT
 	def_bool y
 
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index d5f382830f49..19b145ef7d92 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -10,6 +10,7 @@  config C6X
 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
 	select CLKDEV_LOOKUP
 	select GENERIC_ATOMIC64
+	select GENERIC_BUG if BUG
 	select GENERIC_CALIBRATE_DELAY
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
@@ -30,10 +31,6 @@  config FPU
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-
 config C6X_BIG_KERNEL
 	bool "Build a big kernel"
 	help
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 425217c98a77..5eb4f48506b6 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -14,6 +14,7 @@  config HEXAGON
 	# select GPIOLIB
 	# select HAVE_CLK
 	# select GENERIC_PENDING_IRQ if SMP
+	select GENERIC_BUG if BUG
 	select GENERIC_ATOMIC64
 	select HAVE_PERF_EVENTS
 	# GENERIC_ALLOCATOR is used by dma_alloc_coherent()
@@ -65,10 +66,6 @@  config GENERIC_IRQ_PROBE
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-
 menu "Machine selection"
 
 choice
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fcbc67b6b830..42282b8e086d 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -27,6 +27,7 @@  config PARISC
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
 	select GENERIC_ATOMIC64 if !64BIT
+	select GENERIC_BUG if BUG
 	select GENERIC_CALIBRATE_DELAY
 	select GENERIC_IRQ_PROBE
 	select GENERIC_PCI_IOMAP
@@ -85,11 +86,6 @@  config ARCH_HAS_ILOG2_U64
 	bool
 	default n
 
-config GENERIC_BUG
-	bool
-	default y
-	depends on BUG
-
 config GENERIC_HWEIGHT
 	bool
 	default y
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 8b9f3639555f..1684017fa496 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -142,6 +142,7 @@  config PPC
 	select EDAC_ATOMIC_SCRUB
 	select EDAC_SUPPORT
 	select GENERIC_ATOMIC64			if PPC32
+	select GENERIC_BUG			if BUG
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CLOCKEVENTS_BROADCAST	if SMP
 	select GENERIC_CMOS_UPDATE
@@ -283,11 +284,6 @@  config AUDIT_ARCH
 	bool
 	default y
 
-config GENERIC_BUG
-	bool
-	default y
-	depends on BUG
-
 config SYS_SUPPORTS_APM_EMULATION
 	default y if PMAC_APM_EMU
 	bool
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 732614eb3683..c410ed896567 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -19,6 +19,8 @@  config RISCV
 	select ARCH_WANT_FRAME_POINTERS
 	select CLONE_BACKWARDS
 	select COMMON_CLK
+	select GENERIC_BUG if BUG
+	select GENERIC_BUG_RELATIVE_POINTERS if 64BIT
 	select GENERIC_CALIBRATE_DELAY
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES
@@ -66,14 +68,6 @@  config PAGE_OFFSET
 	default 0xffffffff80000000 if 64BIT && MAXPHYSMEM_2GB
 	default 0xffffffe000000000 if 64BIT && MAXPHYSMEM_128GB
 
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-	select GENERIC_BUG_RELATIVE_POINTERS if 64BIT
-
-config GENERIC_BUG_RELATIVE_POINTERS
-	bool
-
 config GENERIC_CSUM
 	def_bool y
 
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 15ccdd04814e..2a5c12be633e 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -17,12 +17,6 @@  config ARCH_HAS_ILOG2_U64
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_BUG
-	def_bool y if BUG
-
-config GENERIC_BUG_RELATIVE_POINTERS
-	def_bool y
-
 config GENERIC_LOCKBREAK
 	def_bool y if SMP && PREEMPT
 
@@ -103,6 +97,8 @@  config S390
 	select BUILDTIME_EXTABLE_SORT
 	select CLONE_BACKWARDS2
 	select DYNAMIC_FTRACE if FUNCTION_TRACER
+	select GENERIC_BUG if BUG
+	select GENERIC_BUG_RELATIVE_POINTERS
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_AUTOPROBE
 	select GENERIC_CPU_DEVICES if !SMP
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 01d09a4637d9..92d16cab61f3 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -35,6 +35,7 @@  config SUPERH
 	select LOCKDEP_SUPPORT
 	select RTC_LIB
 	select GENERIC_ATOMIC64
+	select GENERIC_BUG if BUG && SUPERH32
 	select GENERIC_IRQ_SHOW
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_IDLE_POLL_SETUP
@@ -92,10 +93,6 @@  config ARCH_DEFCONFIG
 	default "arch/sh/configs/shx3_defconfig" if SUPERH32
 	default "arch/sh/configs/cayman_defconfig" if SUPERH64
 
-config GENERIC_BUG
-	def_bool y
-	depends on BUG && SUPERH32
-
 config GENERIC_CSUM
 	def_bool y
 	depends on SUPERH64
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1bd4f19b6b28..f4cb31174e1b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -91,6 +91,8 @@  config X86
 	select DCACHE_WORD_ACCESS
 	select EDAC_ATOMIC_SCRUB
 	select EDAC_SUPPORT
+	select GENERIC_BUG			if BUG
+	select GENERIC_BUG_RELATIVE_POINTERS	if X86_64
 	select GENERIC_CALIBRATE_DELAY
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CLOCKEVENTS_BROADCAST	if X86_64 || (X86_32 && X86_LOCAL_APIC)
@@ -253,14 +255,6 @@  config GENERIC_ISA_DMA
 	def_bool y
 	depends on ISA_DMA_API
 
-config GENERIC_BUG
-	def_bool y
-	depends on BUG
-	select GENERIC_BUG_RELATIVE_POINTERS if X86_64
-
-config GENERIC_BUG_RELATIVE_POINTERS
-	bool
-
 config GENERIC_HWEIGHT
 	def_bool y
 
diff --git a/lib/Kconfig b/lib/Kconfig
index a9e56539bd11..a827d214d866 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -615,6 +615,12 @@  config STRING_SELFTEST
 
 endmenu
 
+config GENERIC_BUG
+	bool
+
+config GENERIC_BUG_RELATIVE_POINTERS
+	bool
+
 config GENERIC_LIB_ASHLDI3
 	bool