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t=1564040763; bh=5qVdSDLMF8CcV9pfWX2CvLF3o3XuTByWM9mgJIGzG44=; h=X-UI-Sender-Class:Cc:References:Subject:To:From:Date:In-Reply-To; b=CGyXpFGoDhHPm8Yvk663DUuJjqGuyZ8fuPXWQpezOymcpKPZWoD8BBphpytsznXoX 6VHI4vBvReH3rs8TD8oG7vE8Tn63AflM0O2x0yMPWfO2gUD5I2icV7Ypy3BFYqiCLL of71nf8UYkaDDoNLPwfgYvswnfa2SpyRO/8lj5lA= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.132.39.22]) by smtp.web.de (mrweb004 [213.165.67.108]) with ESMTPSA (Nemesis) id 0Lir9R-1iOVHz3eX7-00d1JA; Thu, 25 Jul 2019 09:46:03 +0200 Cc: linux-kernel@vger.kernel.org, David Laight References: Subject: Re: [PATCH 1/2] string: Add stracpy and stracpy_pad mechanisms To: Julia Lawall , Joe Perches , cocci@systeme.lip6.fr, kernel-janitors@vger.kernel.org From: Markus Elfring Openpgp: preference=signencrypt Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: Date: Thu, 25 Jul 2019 09:46:00 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:dw8S05x+JUlV7gYHj+3H1BNLJkcyRYi+sMmvwKM4TeN3wUyRIA9 jbPbOFhV1kseEevPOle0Bv3nVfzYR/x1aRzwkHIHpVHNW9ZwIuyJh7vZVBRm69xans+ubaQ lDWZ1byBtdBmClPMS/RMTE9r+rzaij6cPGNSwhxc0PVXGdjj4uMHAb1uFa1bnqNIstMa89A pseQsUxGbHdQBA7NtWYlg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:EcFKwtP120c=:2lL/tdvXWxNLuFmI6dMByZ xybnEYmLrz7lH5SGMClO4b20cXlTet+erxklxWijzPVpHp0qNemUz5Z2sIiSsIvjRLPcv+vWD gyqPNplozt3GL+VFkSDT2dcwgX+9KCQNH/NPzt6BGbDMmr7+AyEgCIX9LlETQLqC7B/LT9AcL iy9mN1723WRVxHIRcTSqy/SsrCOfiJdZ1SZupb8e0gDT28SyJYcHFx3VQ1jUpEBICNCR6t1nt CpGEvC5uiop+5WBp+tk9n0Y7gty2KO1AK8TE5yBqki100PsPh6fgsNXMd6tOtABsUakQg3Pf5 39INThxnWghEXjSE9qHh+0et/G3Z4C7KBrvOkgJqp9HmdZaK9kilCDoK4+Lvbf1ASWCfhA6Tc J4sQNn+L+Azf/ndfWUb6tildrPMgFprcf/XnYaAfn8J07xFwG01thVBKuISY2OJs/hRoXKpAE 5H2DrtqHIP7NknBmn5IfDdk2aR7AaoOBtlQ//ziaHx24qF7j6Fobl1nbyPxtf0u12bQlSjoCF YFbSw4zVtuW4D7QO9qevZD+pGPKhLfWwLjlu0J841injdQgUVc3MfPB6TnY9SfF9+ih2VpCyp jxr9TtEW0t9pJe00LnRwTI1KAFKGjFDraRqaQciGAP9Z1HtwC6P0JKipOvMRFJr2x1QU6eA45 RxetyY7gYDWXXSWny0LMPzxEjDd1IXJGeWspmzu5H0L2okLISNbI93ZaDfN8r6cuG8unl7xEE xmrJjQtsLigX4PN/+AAF6NKI8RhHZ4U7hYFdiW+NVYNrJKWVdNISpEv630i0VrPEhLaKmfa2k N1gUGlQVVtfi9Kx3lxyg9oeAzLbEgj1Lu6oDnxUW+EDZHeeB6IiErri0xPtrI7Uuk4jh9lJjk kBpUYZY+wROWHT5GdzdzysqW1LqZ7vGQjFYGOyG7ZsXqdemI2RRYk3UaPCfNwCxHjsB3hWo16 KXdicNBIYa6s10fdcchkdBfBts4e7FLCcBLZLKnNysBZhzIbtp5YY5YzDiaIU+dWUV6OxE/qh HCqt4OiyTzKLgujTInqsvblp3Sj7IXkCr4ubE4UAwensgLZz0GSvkWYgj4ktqZgcMWCxZzAnA fyb1rHK4+zw8E0g6xS/PF576PzW1U8CRcuP Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > New version. I check for non-use of the return value of strlcpy and > address some issues that affected the matching of the case where the fir= st > argument involves a pointer dereference. I suggest to take another look at corresponding implementation details of the shown SmPL script. > \(strscpy\|strlcpy\)(e1.f, e2, i2)@p Can the data access operator =E2=80=9C->=E2=80=9D (arrow) matter also here= ? > @@ > identifier r.i1,r.i2; > type T; > @@ > struct i1 { ... T i1[i2]; ... } Will an additional SmPL rule name be helpful for this part? > @@ > ( > -x =3D strlcpy > +stracpy > (e1.f, e2 > - , i2 > )@p; > ... when !=3D x > > | I wonder about the deletion of the assignment target. Should the setting of such a variable be usually preserved? Regards, Markus