Patch "arm64: armv8_deprecated: fix unused-function error" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    arm64: armv8_deprecated: fix unused-function error

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm64-armv8_deprecated-fix-unused-function-error.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From ruanjinjie@xxxxxxxxxx Wed Oct 11 12:07:54 2023
From: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Date: Wed, 11 Oct 2023 10:06:55 +0000
Subject: arm64: armv8_deprecated: fix unused-function error
To: <catalin.marinas@xxxxxxx>, <will@xxxxxxxxxx>, <mark.rutland@xxxxxxx>, <broonie@xxxxxxxxxx>, <anshuman.khandual@xxxxxxx>, <alexandru.elisei@xxxxxxx>, <sashal@xxxxxxxxxx>, <maz@xxxxxxxxxx>, <gregkh@xxxxxxxxxxxxxxxxxxx>, <james.morse@xxxxxxx>, <pcc@xxxxxxxxxx>, <scott@xxxxxxxxxxxxxxxxxxxxxx>, <ebiederm@xxxxxxxxxxxx>, <haibinzhang@xxxxxxxxxxx>, <hewenliang4@xxxxxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <stable@xxxxxxxxxx>
Cc: <ruanjinjie@xxxxxxxxxx>
Message-ID: <20231011100655.979626-16-ruanjinjie@xxxxxxxxxx>

From: Ren Zhijie <renzhijie2@xxxxxxxxxx>

commit 223d3a0d30b6e9f979f5642e430e1753d3e29f89 upstream.

If CONFIG_SWP_EMULATION is not set and
CONFIG_CP15_BARRIER_EMULATION is not set,
aarch64-linux-gnu complained about unused-function :

arch/arm64/kernel/armv8_deprecated.c:67:21: error: ‘aarch32_check_condition’ defined but not used [-Werror=unused-function]
 static unsigned int aarch32_check_condition(u32 opcode, u32 psr)
                     ^~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

To fix this warning, modify aarch32_check_condition() with __maybe_unused.

Fixes: 0c5f416219da ("arm64: armv8_deprecated: move aarch32 helper earlier")
Signed-off-by: Ren Zhijie <renzhijie2@xxxxxxxxxx>
Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
Link: https://lore.kernel.org/r/20221124022429.19024-1-renzhijie2@xxxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/arm64/kernel/armv8_deprecated.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -64,7 +64,7 @@ struct insn_emulation {
 
 #define	ARM_OPCODE_CONDITION_UNCOND	0xf
 
-static unsigned int aarch32_check_condition(u32 opcode, u32 psr)
+static unsigned int __maybe_unused aarch32_check_condition(u32 opcode, u32 psr)
 {
 	u32 cc_bits  = opcode >> 28;
 


Patches currently in stable-queue which might be from ruanjinjie@xxxxxxxxxx are

queue-5.15/arm64-factor-insn-read-out-of-call_undef_hook.patch
queue-5.15/arm64-rework-el0-mrs-emulation.patch
queue-5.15/arm64-die-pass-err-as-long.patch
queue-5.15/arm64-armv8_deprecated-rework-deprected-instruction-handling.patch
queue-5.15/arm64-armv8_deprecated-fix-unused-function-error.patch
queue-5.15/arm64-armv8_deprecated-move-aarch32-helper-earlier.patch
queue-5.15/arm64-consistently-pass-esr_elx-to-die.patch
queue-5.15/arm64-factor-out-el1-ssbs-emulation-hook.patch
queue-5.15/arm64-report-el1-undefs-better.patch
queue-5.15/arm64-armv8_deprecated-fold-ops-into-insn_emulation.patch
queue-5.15/arm64-rework-bti-exception-handling.patch
queue-5.15/arm64-rework-fpac-exception-handling.patch
queue-5.15/arm64-split-el0-el1-undef-handlers.patch
queue-5.15/arm64-allow-kprobes-on-el0-handlers.patch
queue-5.15/arm64-armv8_deprecated-move-emulation-functions.patch



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