From: Rasmus Villemoes <linux@rasmusvillemoes.dk>
To: Andrew Morton <akpm@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org
Cc: Jason Baron <jbaron@akamai.com>,
linux-kernel@vger.kernel.org,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Will Deacon <will.deacon@arm.com>
Subject: [PATCH 09/10] arm64: select DYNAMIC_DEBUG_RELATIVE_POINTERS
Date: Tue, 9 Apr 2019 23:25:16 +0200 [thread overview]
Message-ID: <20190409212517.7321-10-linux@rasmusvillemoes.dk> (raw)
In-Reply-To: <20190409212517.7321-1-linux@rasmusvillemoes.dk>
Similar to GENERIC_BUG_RELATIVE_POINTERS, one can now relativize the
four const char* members of struct _ddebug, thus saving 16 bytes per
instance (one for each pr_debug(), dev_debug() etc. in a
CONFIG_DYNAMIC_DEBUG kernel). The asm-generic implementation seems to
work out-of-the-box, though this is only compile-tested.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/Kbuild | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7e34b9eba5de..d0871d523d5d 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -83,6 +83,7 @@ config ARM64
select CRC32
select DCACHE_WORD_ACCESS
select DMA_DIRECT_REMAP
+ select DYNAMIC_DEBUG_RELATIVE_POINTERS
select EDAC_SUPPORT
select FRAME_POINTER
select GENERIC_ALLOCATOR
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 1e17ea5c372b..1ead0d645686 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -3,6 +3,7 @@ generic-y += delay.h
generic-y += div64.h
generic-y += dma.h
generic-y += dma-contiguous.h
+generic-y += dynamic_debug.h
generic-y += early_ioremap.h
generic-y += emergency-restart.h
generic-y += hw_irq.h
--
2.20.1
next prev parent reply other threads:[~2019-04-09 21:26 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-09 21:25 [PATCH 00/10] implement DYNAMIC_DEBUG_RELATIVE_POINTERS Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 01/10] linux/device.h: use unique identifier for each struct _ddebug Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 02/10] linux/net.h: " Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 03/10] linux/printk.h: " Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 04/10] dynamic_debug: introduce accessors for string members of " Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 05/10] dynamic_debug: drop use of bitfields in " Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 06/10] dynamic_debug: introduce CONFIG_DYNAMIC_DEBUG_RELATIVE_POINTERS Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 07/10] dynamic_debug: add asm-generic implementation for DYNAMIC_DEBUG_RELATIVE_POINTERS Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 08/10] x86-64: select DYNAMIC_DEBUG_RELATIVE_POINTERS Rasmus Villemoes
2019-04-10 7:31 ` Ingo Molnar
2019-04-09 21:25 ` Rasmus Villemoes [this message]
2019-04-26 9:39 ` [PATCH 09/10] arm64: " Arnd Bergmann
2019-04-26 10:05 ` Rasmus Villemoes
2019-04-26 13:00 ` Nathan Chancellor
2019-04-26 19:06 ` [PATCH 11/10] arm64: unbreak DYNAMIC_DEBUG=y build with clang Rasmus Villemoes
2019-04-26 19:06 ` [PATCH 12/10] powerpc: " Rasmus Villemoes
2019-04-29 17:34 ` Nick Desaulniers
2019-04-26 19:27 ` [PATCH 11/10] arm64: " Rasmus Villemoes
2019-04-26 21:58 ` Konstantin Ryabitsev
2019-04-26 22:07 ` Konstantin Ryabitsev
2019-04-29 17:32 ` Nick Desaulniers
2019-04-30 18:22 ` Nick Desaulniers
2019-05-02 8:57 ` Rasmus Villemoes
2019-04-09 21:25 ` [PATCH 10/10] powerpc: select DYNAMIC_DEBUG_RELATIVE_POINTERS for PPC64 Rasmus Villemoes
2019-04-23 15:37 ` Christophe Leroy
2019-04-23 19:36 ` Andrew Morton
2019-04-24 6:46 ` Rasmus Villemoes
2019-05-06 6:48 ` [PATCH 00/10] implement DYNAMIC_DEBUG_RELATIVE_POINTERS Rasmus Villemoes
2019-05-06 7:05 ` Ingo Molnar
2019-05-06 7:34 ` Rasmus Villemoes
2019-05-06 7:48 ` Ingo Molnar
2019-05-06 14:48 ` Segher Boessenkool
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