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From:   Ard Biesheuvel <ardb@kernel.org>
To:     linux-crypto@vger.kernel.org
Cc:     linux-arm-kernel@lists.infradead.org, herbert@gondor.apana.org.au,
        keescook@chromium.org, ebiggers@kernel.org,
        Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH 4/4] crypto: arm64/ghash-ce - use frame_push/pop macros consistently
Date:   Tue, 29 Nov 2022 17:48:52 +0100
Message-Id: <20221129164852.2051561-5-ardb@kernel.org>
In-Reply-To: <20221129164852.2051561-1-ardb@kernel.org>
References: <20221129164852.2051561-1-ardb@kernel.org>
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Use the frame_push and frame_pop macros to set up the stack frame so
that return address protections will be enabled automically when
configured.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 arch/arm64/crypto/ghash-ce-core.S | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/crypto/ghash-ce-core.S b/arch/arm64/crypto/ghash-ce-core.S
index ebe5558929b7bba6..23ee9a5eaf27c23c 100644
--- a/arch/arm64/crypto/ghash-ce-core.S
+++ b/arch/arm64/crypto/ghash-ce-core.S
@@ -436,9 +436,7 @@ SYM_FUNC_END(pmull_ghash_update_p8)
 
 	.align		6
 	.macro		pmull_gcm_do_crypt, enc
-	stp		x29, x30, [sp, #-32]!
-	mov		x29, sp
-	str		x19, [sp, #24]
+	frame_push	1
 
 	load_round_keys	x7, x6, x8
 
@@ -529,7 +527,7 @@ CPU_LE(	rev		w8, w8		)
 	.endif
 	bne		0b
 
-3:	ldp		x19, x10, [sp, #24]
+3:	ldr		x10, [sp, #.Lframe_local_offset]
 	cbz		x10, 5f				// output tag?
 
 	ld1		{INP3.16b}, [x10]		// load lengths[]
@@ -562,7 +560,7 @@ CPU_LE(	rev		w8, w8		)
 	smov		w0, v0.b[0]			// return b0
 	.endif
 
-4:	ldp		x29, x30, [sp], #32
+4:	frame_pop
 	ret
 
 5:
-- 
2.35.1