mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Arnd Bergmann <arnd@arndb.de>
To: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org,
	Arnd Bergmann <arnd@arndb.de>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Nicolas Pitre <nico@linaro.org>, Jon Medhurst <tixy@linaro.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Maxime Coquelin stm32 <mcoquelin.stm32@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 1/9] ARM: ARMv7-M uses BE-8, not BE-32
Date: Thu, 18 Feb 2016 15:01:53 +0100	[thread overview]
Message-ID: <1455804123-2526139-2-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1455804123-2526139-1-git-send-email-arnd@arndb.de>

When configuring the kernel for big-endian, we set either BE-8 or BE-32
based on the CPU architecture level. Until linux-4.4, we did not have
any ARMv7-M platform allowing big-endian builds, but now i.MX/Vybrid
is in that category, adn we get a build error because of this:

arch/arm/kernel/module-plts.c: In function 'get_module_plt':
arch/arm/kernel/module-plts.c:60:46: error: implicit declaration of function '__opcode_to_mem_thumb32' [-Werror=implicit-function-declaration]

This comes down to picking the wrong default, ARMv7-M uses BE8
like ARMv7-A does. Changing the default gets the kernel to compile
and presumably works.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 55347662e5ed..ff1637365494 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -723,7 +723,7 @@ config CPU_BIG_ENDIAN
 config CPU_ENDIAN_BE8
 	bool
 	depends on CPU_BIG_ENDIAN
-	default CPU_V6 || CPU_V6K || CPU_V7
+	default CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M
 	help
 	  Support for the BE-8 (big-endian) mode on ARMv6 and ARMv7 processors.
 
-- 
2.7.0

       reply	other threads:[~2016-02-18 14:03 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1455804123-2526139-1-git-send-email-arnd@arndb.de>
2016-02-18 14:01 ` Arnd Bergmann [this message]
2016-02-18 16:06   ` Nicolas Pitre
2016-02-18 16:12     ` Arnd Bergmann
2016-02-19  8:47       ` Vladimir Murzin
2016-02-19 10:17         ` Arnd Bergmann
2016-02-18 14:01 ` [PATCH 2/9] ARM: change NR_IPIS to 8 Arnd Bergmann
2016-02-18 14:26   ` Marc Zyngier
2016-02-18 14:37   ` Russell King - ARM Linux
2016-02-18 15:18     ` Arnd Bergmann
2018-09-18  8:19       ` Chunyan Zhang
2016-02-18 14:01 ` [PATCH 3/9] ARM: make free_memmap as __init Arnd Bergmann
2016-02-18 15:55   ` Nicolas Pitre
2016-02-18 14:01 ` [PATCH 4/9] ARM: add CONFIG_PHYS_OFFSET default values Arnd Bergmann
2016-02-18 16:02   ` Nicolas Pitre
2016-02-19  8:33     ` Arnd Bergmann
2016-02-19 14:29       ` Chris Brandt
2016-02-19 15:34         ` Arnd Bergmann
2016-02-19 16:43           ` Russell King - ARM Linux
2016-02-19 17:18             ` Chris Brandt
2016-02-19 17:57             ` Nicolas Pitre
2016-02-19 16:10       ` Nicolas Pitre
2016-02-19 16:23         ` Arnd Bergmann
2016-02-19 17:31           ` Nicolas Pitre
2016-02-19 18:07             ` Russell King - ARM Linux
2016-02-19 21:14               ` Arnd Bergmann
2016-02-18 14:01 ` [PATCH 5/9] ARM: atags_to_fdt: don't warn about stack size Arnd Bergmann
2016-02-18 16:13   ` Nicolas Pitre
2016-02-18 16:26     ` [PATCH v2] " Arnd Bergmann
2016-02-18 17:14       ` Nicolas Pitre
2016-02-19 16:58       ` Arnd Bergmann
2016-02-18 14:01 ` [PATCH 6/9] ARM: uaccess: avoid warning for NOMMU in access_ok Arnd Bergmann
2016-02-18 16:15   ` Nicolas Pitre
2016-02-18 14:01 ` [PATCH 7/9] ARM: move NO_DMA definition to ecard.h Arnd Bergmann
2016-02-18 16:17   ` Nicolas Pitre
2016-02-18 14:02 ` [PATCH 8/9] ARM: do not use optimized do_div for ARMv3 Arnd Bergmann
2016-02-18 17:20   ` Nicolas Pitre
2016-02-19  9:03     ` Arnd Bergmann
2016-02-19 18:44       ` Nicolas Pitre
2016-02-18 14:02 ` [PATCH 9/9] ARM: fix kprobe test with CONFIG_CPU_32v3 Arnd Bergmann
2016-02-18 14:21   ` Jon Medhurst (Tixy)
2016-02-18 16:21   ` Nicolas Pitre

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1455804123-2526139-2-git-send-email-arnd@arndb.de \
    --to=arnd@arndb.de \
    --cc=ard.biesheuvel@linaro.org \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@arm.linux.org.uk \
    --cc=marc.zyngier@arm.com \
    --cc=mcoquelin.stm32@gmail.com \
    --cc=nico@linaro.org \
    --cc=tixy@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®