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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>,
	Vladimir Murzin <vladimir.murzin@arm.com>,
	Russell King <rmk+kernel@armlinux.org.uk>,
	Sasha Levin <sashal@kernel.org>,
	linux@armlinux.org.uk, ndesaulniers@google.com, ardb@kernel.org,
	nathan@kernel.org, wangkefeng.wang@huawei.com,
	u.kleine-koenig@pengutronix.de,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 4.9 30/33] ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
Date: Mon,  8 Nov 2021 20:08:04 -0500	[thread overview]
Message-ID: <20211109010807.1191567-30-sashal@kernel.org> (raw)
In-Reply-To: <20211109010807.1191567-1-sashal@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 345dac33f58894a56d17b92a41be10e16585ceff ]

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.

https://lore.kernel.org/all/1455804123-2526139-2-git-send-email-arnd@arndb.de/

Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 7f3760fa9c154..93623627a0b68 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -731,7 +731,7 @@ 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.
 
-- 
2.33.0


  parent reply	other threads:[~2021-11-09  1:27 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-09  1:07 [PATCH AUTOSEL 4.9 01/33] Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg() Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 02/33] Bluetooth: fix use-after-free error in lock_sock_nested() Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 03/33] platform/x86: wmi: do not fail if disabling fails Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 04/33] MIPS: lantiq: dma: add small delay after reset Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 05/33] MIPS: lantiq: dma: reset correct number of channel Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 06/33] locking/lockdep: Avoid RCU-induced noinstr fail Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 07/33] smackfs: Fix use-after-free in netlbl_catmap_walk() Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 08/33] NET: IPV4: fix error "do not initialise globals to 0" Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 09/33] x86: Increase exception stack sizes Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 10/33] media: mt9p031: Fix corrupted frame after restarting stream Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 11/33] media: netup_unidvb: handle interrupt properly according to the firmware Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 12/33] media: uvcvideo: Set capability in s_param Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 13/33] media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe() Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 14/33] media: mceusb: return without resubmitting URB in case of -EPROTO error Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 15/33] ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 16/33] ACPICA: Avoid evaluating methods too early during system resume Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 17/33] media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte() Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 18/33] tracefs: Have tracefs directories not set OTH permission bits by default Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 19/33] ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create() Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 20/33] ACPI: battery: Accept charges over the design capacity as full Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 21/33] memstick: r592: Fix a UAF bug when removing the driver Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 22/33] lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 23/33] lib/xz: Validate the value before assigning it to an enum variable Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 24/33] tracing/cfi: Fix cmp_entries_* functions signature mismatch Sasha Levin
2021-11-09  1:07 ` [PATCH AUTOSEL 4.9 25/33] mwl8k: Fix use-after-free in mwl8k_fw_state_machine() Sasha Levin
2021-11-09  1:08 ` [PATCH AUTOSEL 4.9 26/33] PM: hibernate: Get block device exclusively in swsusp_check() Sasha Levin
2021-11-09  1:08 ` [PATCH AUTOSEL 4.9 27/33] iwlwifi: mvm: disable RX-diversity in powersave Sasha Levin
2021-11-09  1:08 ` [PATCH AUTOSEL 4.9 28/33] smackfs: use __GFP_NOFAIL for smk_cipso_doi() Sasha Levin
2021-11-09  1:08 ` [PATCH AUTOSEL 4.9 29/33] ARM: clang: Do not rely on lr register for stacktrace Sasha Levin
2021-11-09  1:08 ` Sasha Levin [this message]
2021-11-09  1:08 ` [PATCH AUTOSEL 4.9 31/33] spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe() Sasha Levin
2021-11-09  1:08 ` [PATCH AUTOSEL 4.9 32/33] parisc: fix warning in flush_tlb_all Sasha Levin
2021-11-09  1:08 ` [PATCH AUTOSEL 4.9 33/33] parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling Sasha Levin

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