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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 29/37] mmc: drop nth_page() usage within SG entry Date: Mon, 1 Sep 2025 17:03:50 +0200 Message-ID: <20250901150359.867252-30-david@redhat.com> In-Reply-To: <20250901150359.867252-1-david@redhat.com> References: <20250901150359.867252-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 7E503A0012 X-Stat-Signature: 3ujbkeoni3i1t9j3g5gx8tgf3yegjg4p X-Rspam-User: X-HE-Tag: 1756739533-766727 X-HE-Meta: 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 3MKdpy4r 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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. Acked-by: Ulf Hansson Reviewed-by: Lorenzo Stoakes Cc: Alex Dubov Cc: Jesper Nilsson Cc: Lars Persson Signed-off-by: David Hildenbrand --- drivers/mmc/host/tifm_sd.c | 4 ++-- drivers/mmc/host/usdhi6rol0.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c index ac636efd911d3..2cd69c9e9571b 100644 --- a/drivers/mmc/host/tifm_sd.c +++ b/drivers/mmc/host/tifm_sd.c @@ -191,7 +191,7 @@ static void tifm_sd_transfer_data(struct tifm_sd *host) } off = sg[host->sg_pos].offset + host->block_pos; - pg = nth_page(sg_page(&sg[host->sg_pos]), off >> PAGE_SHIFT); + pg = sg_page(&sg[host->sg_pos]) + (off >> PAGE_SHIFT); p_off = offset_in_page(off); p_cnt = PAGE_SIZE - p_off; p_cnt = min(p_cnt, cnt); @@ -240,7 +240,7 @@ static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data) } off = sg[host->sg_pos].offset + host->block_pos; - pg = nth_page(sg_page(&sg[host->sg_pos]), off >> PAGE_SHIFT); + pg = sg_page(&sg[host->sg_pos]) + (off >> PAGE_SHIFT); p_off = offset_in_page(off); p_cnt = PAGE_SIZE - p_off; p_cnt = min(p_cnt, cnt); diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c index 85b49c07918b3..3bccf800339ba 100644 --- a/drivers/mmc/host/usdhi6rol0.c +++ b/drivers/mmc/host/usdhi6rol0.c @@ -323,7 +323,7 @@ static void usdhi6_blk_bounce(struct usdhi6_host *host, host->head_pg.page = host->pg.page; host->head_pg.mapped = host->pg.mapped; - host->pg.page = nth_page(host->pg.page, 1); + host->pg.page = host->pg.page + 1; host->pg.mapped = kmap(host->pg.page); host->blk_page = host->bounce_buf; @@ -503,7 +503,7 @@ static void usdhi6_sg_advance(struct usdhi6_host *host) /* We cannot get here after crossing a page border */ /* Next page in the same SG */ - host->pg.page = nth_page(sg_page(host->sg), host->page_idx); + host->pg.page = sg_page(host->sg) + host->page_idx; host->pg.mapped = kmap(host->pg.page); host->blk_page = host->pg.mapped; -- 2.50.1