From: Rohan McLure <rmclure@linux.ibm.com>
Date: Tue, 14 Nov 2023 03:14:33 +0000 (+1100)
Subject: ppc64: Fix SHA3_squeeze
X-Git-Tag: openssl-3.3.0-alpha1~620
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed5e478261127cafe9c3f86c4992eab1e5c7ebb1;p=thirdparty%2Fopenssl.git

ppc64: Fix SHA3_squeeze

Fix the conditional on the 'next' parameter passed into SHA3_squeeze.

Reported-by: David Benjamin <davidben@davidben.net>
Signed-off-by: Rohan McLure <rmclure@linux.ibm.com>

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22722)
---

diff --git a/crypto/sha/asm/keccak1600-ppc64.pl b/crypto/sha/asm/keccak1600-ppc64.pl
index 3f8ba817f8d..fe7d6db20e4 100755
--- a/crypto/sha/asm/keccak1600-ppc64.pl
+++ b/crypto/sha/asm/keccak1600-ppc64.pl
@@ -668,8 +668,8 @@ SHA3_squeeze:
 	subi	$out,r4,1		; prepare for stbu
 	mr	$len,r5
 	mr	$bsz,r6
-	${UCMP}i r7,1                   ; r7 = 'next' argument
-	blt	.Lnext_block
+	${UCMP}i r7,0                   ; r7 = 'next' argument
+	bne	.Lnext_block
 	b	.Loop_squeeze
 
 .align	4