From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 56A78324B32 for ; Mon, 1 Sep 2025 15:13:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756739607; cv=none; b=SnyhCqK7up4qAirSnVnPN0hkyc1eC051WPYRqKYCP8sTStdOvX5MAkDQ+GNrDOOHP2QRD4C/gImw1sOaBXTQx3wH6dDkkQqQkiS1Vzb4vRw/vPW8b68f3xbJJOpnFOPao7WCPhzr0uglKud5O3UNw3wsF4UVoEyVG9leHjVZRaw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756739607; c=relaxed/simple; bh=6+Py6+9dq3NVHrgWloWNnjrS4Z6n8R6Ijn3LmH4WoOI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SUB7ijz3yhflYoxxPNfI9Dgci3IdmPqYlkOBXh8p/v+yqj1ORBHRIjPDinwjFFProONg4eqFwIOYV6CDCtetwFycPvIbVXwAqu/kL9KBlQI5O0gqG2xuCxRQQn0lAJhWp0yCqeDn0OYut3RGXGfO5w8+cK0SpNkqY4E6vyaX7UA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Xjlj/klo; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Xjlj/klo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1756739604; 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=vm1zVGjW+sGlJ+HurCNe9nDe0XN3JBuCy2WCKHoB7cQ=; b=Xjlj/kloZMME0uJFy4gZtzi0TwiF7IelaJayMqnDKY3GfzpHK74EOPrzvfq38Mts2bUjUu pylFoXEOQKiUO3o967w99dg1op/ReKVqpuKf5ku9neoyUZtXVtPQbQHRs6zfFEHg13CBMA Avc56JlxQ/gvAdwDVZNXTqjxziJ2poo= Received: from mx-prod-mc-05.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-595-l0sCqX0_O9e7dNlURLW9hw-1; Mon, 01 Sep 2025 11:13:20 -0400 X-MC-Unique: l0sCqX0_O9e7dNlURLW9hw-1 X-Mimecast-MFC-AGG-ID: l0sCqX0_O9e7dNlURLW9hw_1756739595 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 054DC195C27B; Mon, 1 Sep 2025 15:13:15 +0000 (UTC) Received: from t14s.fritz.box (unknown [10.22.88.45]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 1D2821800447; Mon, 1 Sep 2025 15:12:59 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: David Hildenbrand , Lorenzo Stoakes , 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, 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 v2 33/37] crypto: remove nth_page() usage within SG entry Date: Mon, 1 Sep 2025 17:03:54 +0200 Message-ID: <20250901150359.867252-34-david@redhat.com> In-Reply-To: <20250901150359.867252-1-david@redhat.com> References: <20250901150359.867252-1-david@redhat.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 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. Reviewed-by: Lorenzo Stoakes Acked-by: 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