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Miller" , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-kernel@vger.kernel.org (open list), llvm@lists.linux.dev (open list:CLANG/LLVM BUILD SUPPORT:Keyword:\b(?i:clang|llvm)\b) Subject: [PATCH] crypto: hisilicon/sec: use devm_platform_ioremap_resource in sec_map_io Date: Tue, 14 Jul 2026 18:15:33 -0700 Message-ID: <20260715011533.1278258-1-rosenp@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Replace the open-coded platform_get_resource() plus devm_ioremap() sequence in the SEC_NUM_ADDR_REGIONS loop with devm_platform_ioremap_resource(), which fetches the resource, requests the region and maps it in one call. Switch the error check to IS_ERR()/PTR_ERR() and drop the now-unused struct resource pointer. The driver only maps indices 0 and 1 (SEC_COMMON, SEC_SAA). On hip07 the corresponding reg regions (0xd0000000, 0xd2000000) are 0x10000 each and disjoint, so the region reservation added by devm_ioremap_resource() is exclusive and does not introduce overlap failures. Built for arm64 (drivers/crypto/hisilicon/sec/sec_drv.o) with LLVM=3D1. Assisted-by: opencode:hy3-free Signed-off-by: Rosen Penev --- drivers/crypto/hisilicon/sec/sec_drv.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/crypto/hisilicon/sec/sec_drv.c b/drivers/crypto/hisili= con/sec/sec_drv.c index 129cb6faa0b7..2514a5e1f9b4 100644 --- a/drivers/crypto/hisilicon/sec/sec_drv.c +++ b/drivers/crypto/hisilicon/sec/sec_drv.c @@ -1010,25 +1010,12 @@ static void sec_queue_base_init(struct sec_dev_info= *info, =20 static int sec_map_io(struct sec_dev_info *info, struct platform_device *p= dev) { - struct resource *res; int i; =20 for (i =3D 0; i < SEC_NUM_ADDR_REGIONS; i++) { - res =3D platform_get_resource(pdev, IORESOURCE_MEM, i); - - if (!res) { - dev_err(info->dev, "Memory resource %d not found\n", i); - return -EINVAL; - } - - info->regs[i] =3D devm_ioremap(info->dev, res->start, - resource_size(res)); - if (!info->regs[i]) { - dev_err(info->dev, - "Memory resource %d could not be remapped\n", - i); - return -EINVAL; - } + info->regs[i] =3D devm_platform_ioremap_resource(pdev, i); + if (IS_ERR(info->regs[i])) + return PTR_ERR(info->regs[i]); } =20 return 0; --=20 2.55.0