From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B9F70CA0EFF for ; Wed, 27 Aug 2025 23:16:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8MHIHuL9IPmHgJaM72pDkepNtgheqXn4ApquqgGAHT8=; b=d/zeVn0s4Lf700 Fqj6knVlpkqj0iE3zShAlZimxVDfd7l7+J/FlAWjMhjU4pa8yIO+tZiRVzwurYNUJutFDHQG7Jh9o RT60YXd7yIJ7L5p9DL8CXVj5Go9Pwj3NKPkJwluhgtu8CsriQwUC9X/E7iqorfA6U1fJPptoaJqnx iWAbQsK1i1MS5pV7w+JP0o0feqyMOEixz6k079XXwxmdUIaRYx3Bb+a0Z59HYdz8kWLBaU78NEKUw CzrnJMRWdyW0/Qd5HSAylpSsrm2+t8GAsIMey8gu81KaFvOalI2gZNwtRPC3QJt/4tday4M0ioSkr 9JdGL34vliX7+VoSPn0g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1urPNE-0000000HCVM-3fwQ; Wed, 27 Aug 2025 23:16:12 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1urOMa-0000000H1Vc-2lmS for linux-riscv@lists.infradead.org; Wed, 27 Aug 2025 22:11:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1756332687; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BOaasCb4pmSrDWTZ4dnyfdi01+ddZ5bW0CVKvkbWo5U=; b=N115Q9Nu9E965gfofQRNTvfBXhn5gFpQZFihcvi0SVB3GRWOKpyIoPfp/NqaZnSvc6TEIq ZfxVMhi4R+xgvu9CJB1VxP1hhC3e5bIjjPYiqhv6Nwye1hmJsb+nCBQ8eMC70gF/J1u6c9 oydd1JBQbM+uE6XnSrvZkz4eS/bpsDc= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-526-Y03DoB7kMGejm_4jhOvFCg-1; Wed, 27 Aug 2025 18:11:23 -0400 X-MC-Unique: Y03DoB7kMGejm_4jhOvFCg-1 X-Mimecast-MFC-AGG-ID: Y03DoB7kMGejm_4jhOvFCg_1756332676 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1F89C195419F; Wed, 27 Aug 2025 22:11:16 +0000 (UTC) Received: from t14s.redhat.com (unknown [10.22.80.195]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 61BFE30001A5; Wed, 27 Aug 2025 22:10:59 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: David Hildenbrand , Herbert Xu , "David S. Miller" , Alexander Potapenko , Andrew Morton , Brendan Jackman , Christoph Lameter , Dennis Zhou , Dmitry Vyukov , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, iommu@lists.linux.dev, io-uring@vger.kernel.org, Jason Gunthorpe , Jens Axboe , Johannes Weiner , John Hubbard , kasan-dev@googlegroups.com, kvm@vger.kernel.org, "Liam R. Howlett" , Linus Torvalds , linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-ide@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mips@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Lorenzo Stoakes , Marco Elver , Marek Szyprowski , Michal Hocko , Mike Rapoport , Muchun Song , netdev@vger.kernel.org, Oscar Salvador , Peter Xu , Robin Murphy , Suren Baghdasaryan , Tejun Heo , virtualization@lists.linux.dev, Vlastimil Babka , wireguard@lists.zx2c4.com, x86@kernel.org, Zi Yan Subject: [PATCH v1 32/36] crypto: remove nth_page() usage within SG entry Date: Thu, 28 Aug 2025 00:01:36 +0200 Message-ID: <20250827220141.262669-33-david@redhat.com> In-Reply-To: <20250827220141.262669-1-david@redhat.com> References: <20250827220141.262669-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250827_151128_764077_F734A526 X-CRM114-Status: GOOD ( 16.75 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org It's no longer required to use nth_page() when iterating pages within a single SG entry, so let's drop the nth_page() usage. Cc: Herbert Xu Cc: "David S. Miller" Signed-off-by: David Hildenbrand --- crypto/ahash.c | 4 ++-- crypto/scompress.c | 8 ++++---- include/crypto/scatterwalk.h | 4 ++-- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/crypto/ahash.c b/crypto/ahash.c index a227793d2c5b5..dfb4f5476428f 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -88,7 +88,7 @@ static int hash_walk_new_entry(struct crypto_hash_walk *walk) sg = walk->sg; walk->offset = sg->offset; - walk->pg = nth_page(sg_page(walk->sg), (walk->offset >> PAGE_SHIFT)); + walk->pg = sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT); walk->offset = offset_in_page(walk->offset); walk->entrylen = sg->length; @@ -226,7 +226,7 @@ int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc) if (!IS_ENABLED(CONFIG_HIGHMEM)) return crypto_shash_digest(desc, data, nbytes, req->result); - page = nth_page(page, offset >> PAGE_SHIFT); + page += offset >> PAGE_SHIFT; offset = offset_in_page(offset); if (nbytes > (unsigned int)PAGE_SIZE - offset) diff --git a/crypto/scompress.c b/crypto/scompress.c index c651e7f2197a9..1a7ed8ae65b07 100644 --- a/crypto/scompress.c +++ b/crypto/scompress.c @@ -198,7 +198,7 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir) } else return -ENOSYS; - dpage = nth_page(dpage, doff / PAGE_SIZE); + dpage += doff / PAGE_SIZE; doff = offset_in_page(doff); n = (dlen - 1) / PAGE_SIZE; @@ -220,12 +220,12 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir) } else break; - spage = nth_page(spage, soff / PAGE_SIZE); + spage = spage + soff / PAGE_SIZE; soff = offset_in_page(soff); n = (slen - 1) / PAGE_SIZE; n += (offset_in_page(slen - 1) + soff) / PAGE_SIZE; - if (PageHighMem(nth_page(spage, n)) && + if (PageHighMem(spage + n) && size_add(soff, slen) > PAGE_SIZE) break; src = kmap_local_page(spage) + soff; @@ -270,7 +270,7 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir) if (dlen <= PAGE_SIZE) break; dlen -= PAGE_SIZE; - dpage = nth_page(dpage, 1); + dpage++; } } diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h index 15ab743f68c8f..83d14376ff2bc 100644 --- a/include/crypto/scatterwalk.h +++ b/include/crypto/scatterwalk.h @@ -159,7 +159,7 @@ static inline void scatterwalk_map(struct scatter_walk *walk) if (IS_ENABLED(CONFIG_HIGHMEM)) { struct page *page; - page = nth_page(base_page, offset >> PAGE_SHIFT); + page = base_page + (offset >> PAGE_SHIFT); offset = offset_in_page(offset); addr = kmap_local_page(page) + offset; } else { @@ -259,7 +259,7 @@ static inline void scatterwalk_done_dst(struct scatter_walk *walk, end += (offset_in_page(offset) + offset_in_page(nbytes) + PAGE_SIZE - 1) >> PAGE_SHIFT; for (i = start; i < end; i++) - flush_dcache_page(nth_page(base_page, i)); + flush_dcache_page(base_page + i); } scatterwalk_advance(walk, nbytes); } -- 2.50.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv