linux-kernel - [PATCH] irq: make SPARSE_IRQ an optionally hidden option

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1327546727-31681-1-git-send-email-robherring2@gmail.com>
Date:	Wed, 25 Jan 2012 20:58:47 -0600
From:	Rob Herring <robherring2@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Rob Herring <rob.herring@...xeda.com>,
	Russell King <linux@....linux.org.uk>,
	Mark Salter <msalter@...hat.com>,
	Aurelien Jacquiot <a-jacquiot@...com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Paul Mundt <lethal@...ux-sh.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
	linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org
Subject: [PATCH] irq: make SPARSE_IRQ an optionally hidden option

From: Rob Herring <rob.herring@...xeda.com>

On ARM, we don't want SPARSE_IRQ to be a user visible option. Make
SPARSE_IRQ visible based on MAY_HAVE_SPARSE_IRQ instead of depending
on HAVE_SPARSE_IRQ.

With this, SPARSE_IRQ is not visible on C6X and ARM.

Signed-off-by: Rob Herring <rob.herring@...xeda.com>
Cc: Russell King <linux@....linux.org.uk>
Cc: Mark Salter <msalter@...hat.com>
Cc: Aurelien Jacquiot <a-jacquiot@...com>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Paul Mundt <lethal@...ux-sh.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-c6x-dev@...ux-c6x.org
Cc: linuxppc-dev@...ts.ozlabs.org
Cc: linux-sh@...r.kernel.org
---

This is part of an irq include consolidation series for ARM:

http://www.spinics.net/lists/arm-kernel/msg156492.html

Rob

 arch/arm/Kconfig     |    1 -
 arch/c6x/Kconfig     |    2 +-
 arch/powerpc/Kconfig |    2 +-
 arch/sh/Kconfig      |    2 +-
 arch/x86/Kconfig     |    1 -
 kernel/irq/Kconfig   |    5 ++---
 6 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 24626b0..30e7840 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -28,7 +28,6 @@ config ARM
 	select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_GENERIC_HARDIRQS
-	select HAVE_SPARSE_IRQ
 	select GENERIC_IRQ_SHOW
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select GENERIC_PCI_IOMAP
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 26e67f0..2f58c61 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -11,7 +11,7 @@ config TMS320C6X
 	select HAVE_DMA_API_DEBUG
 	select HAVE_GENERIC_HARDIRQS
 	select HAVE_MEMBLOCK
-	select HAVE_SPARSE_IRQ
+	select SPARSE_IRQ
 	select OF
 	select OF_EARLY_FLATTREE
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1919634..06c1cf0 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -133,7 +133,7 @@ config PPC
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
 	select HAVE_GENERIC_HARDIRQS
-	select HAVE_SPARSE_IRQ
+	select MAY_HAVE_SPARSE_IRQ
 	select IRQ_PER_CPU
 	select GENERIC_IRQ_SHOW
 	select GENERIC_IRQ_SHOW_LEVEL
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 3c8db65..21b82a8 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -22,7 +22,7 @@ config SUPERH
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_GENERIC_HARDIRQS
-	select HAVE_SPARSE_IRQ
+	select MAY_HAVE_SPARSE_IRQ
 	select IRQ_FORCED_THREADING
 	select RTC_LIB
 	select GENERIC_ATOMIC64
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 864cc6e..fb2da44 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -69,7 +69,6 @@ config X86
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_TEXT_POKE_SMP
 	select HAVE_GENERIC_HARDIRQS
-	select HAVE_SPARSE_IRQ
 	select SPARSE_IRQ
 	select GENERIC_FIND_FIRST_BIT
 	select GENERIC_IRQ_PROBE
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 5a38bf4..1f2dece 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -13,7 +13,7 @@ config GENERIC_HARDIRQS
 # Options selectable by the architecture code
 
 # Make sparse irq Kconfig switch below available
-config HAVE_SPARSE_IRQ
+config MAY_HAVE_SPARSE_IRQ
        bool
 
 # Enable the generic irq autoprobe mechanism
@@ -61,8 +61,7 @@ config IRQ_FORCED_THREADING
        bool
 
 config SPARSE_IRQ
-	bool "Support sparse irq numbering"
-	depends on HAVE_SPARSE_IRQ
+	bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ
 	---help---
 
 	  Sparse irq numbering is useful for distro kernels that want
-- 
1.7.5.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/