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[158.174.22.22]) by smtp.gmail.com with ESMTPSA id v17sm2174863lfi.49.2020.05.08.14.44.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2020 14:44:31 -0700 (PDT) From: Rikard Falkeborn To: chunfeng.yun@mediatek.com Subject: [PATCH] usb: mtu3: constify struct debugfs_reg32 Date: Fri, 8 May 2020 23:44:21 +0200 Message-Id: <20200508214421.3943-1-rikard.falkeborn@gmail.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200508_144434_328987_B8D0E83B X-CRM114-Status: UNSURE ( 9.48 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:243 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [rikard.falkeborn[at]gmail.com] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Rikard Falkeborn , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org mtu3_prb_regs is never changed and can therefore be made const. This allows the compiler to put it in the text section instead of the data section. Before: text data bss dec hex filename 19966 7120 0 27086 69ce drivers/usb/mtu3/mtu3_debugfs.o After: text data bss dec hex filename 20142 6992 0 27134 69fe drivers/usb/mtu3/mtu3_debugfs.o Signed-off-by: Rikard Falkeborn --- drivers/usb/mtu3/mtu3_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/mtu3/mtu3_debugfs.c b/drivers/usb/mtu3/mtu3_debugfs.c index c96e5dab0a48..fdeade6254ae 100644 --- a/drivers/usb/mtu3/mtu3_debugfs.c +++ b/drivers/usb/mtu3/mtu3_debugfs.c @@ -276,7 +276,7 @@ static const struct file_operations mtu3_ep_fops = { .release = single_release, }; -static struct debugfs_reg32 mtu3_prb_regs[] = { +static const struct debugfs_reg32 mtu3_prb_regs[] = { dump_prb_reg("enable", U3D_SSUSB_PRB_CTRL0), dump_prb_reg("byte-sell", U3D_SSUSB_PRB_CTRL1), dump_prb_reg("byte-selh", U3D_SSUSB_PRB_CTRL2), @@ -349,7 +349,7 @@ static const struct file_operations mtu3_probe_fops = { static void mtu3_debugfs_create_prb_files(struct mtu3 *mtu) { struct ssusb_mtk *ssusb = mtu->ssusb; - struct debugfs_reg32 *regs; + const struct debugfs_reg32 *regs; struct dentry *dir_prb; int i;