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Sun, 08 Aug 2021 17:14:20 +0000 Received: from smtp13.smtpout.orange.fr ([80.12.242.135] helo=smtp.smtpout.orange.fr) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mCmNN-00G9rG-9V for linux-arm-kernel@lists.infradead.org; Sun, 08 Aug 2021 17:14:19 +0000 Received: from [192.168.1.18] ([90.126.253.178]) by mwinf5d75 with ME id f56W250073riaq20356WZB; Sun, 08 Aug 2021 19:06:40 +0200 X-ME-Helo: [192.168.1.18] X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sun, 08 Aug 2021 19:06:40 +0200 X-ME-IP: 90.126.253.178 Subject: Re: [PATCH v4 2/3] drivers/soc/renesas: Prefer memcpy over strcpy To: Bernd Petrovitsch , Len Baker , Andy Gross , Bjorn Andersson , Geert Uytterhoeven , Magnus Damm , Santosh Shilimkar Cc: Kees Cook , David Laight , Robin Murphy , linux-hardening@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20210808125012.4715-1-len.baker@gmx.com> <20210808125012.4715-3-len.baker@gmx.com> <39485c0e-511c-50a0-83be-f9ce6fc47e67@petrovitsch.priv.at> From: Christophe JAILLET Message-ID: Date: Sun, 8 Aug 2021 19:06:30 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <39485c0e-511c-50a0-83be-f9ce6fc47e67@petrovitsch.priv.at> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210808_101417_650780_E0DEA131 X-CRM114-Status: GOOD ( 21.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGksCgpMZSAwOC8wOC8yMDIxIMOgIDE3OjM1LCBCZXJuZCBQZXRyb3ZpdHNjaCBhIMOpY3JpdMKg Ogo+IEhpIGFsbCEKPiAKPiBPbiAwOC8wOC8yMDIxIDE0OjUwLCBMZW4gQmFrZXIgd3JvdGU6Cj4+ IHN0cmNweSgpIHBlcmZvcm1zIG5vIGJvdW5kcyBjaGVja2luZyBvbiB0aGUgZGVzdGluYXRpb24g YnVmZmVyLiBUaGlzCj4+IGNvdWxkIHJlc3VsdCBpbiBsaW5lYXIgb3ZlcmZsb3dzIGJleW9uZCB0 aGUgZW5kIG9mIHRoZSBidWZmZXIsIGxlYWRpbmcKPj4gdG8gYWxsIGtpbmRzIG9mIG1pc2JlaGF2 aW9ycy4gU28sIHVzZSBtZW1jcHkoKSBhcyBhIHNhZmUgcmVwbGFjZW1lbnQuCj4+Cj4+IFRoaXMg aXMgYSBwcmV2aW91cyBzdGVwIGluIHRoZSBwYXRoIHRvIHJlbW92ZSB0aGUgc3RyY3B5KCkgZnVu Y3Rpb24KPj4gZW50aXJlbHkgZnJvbSB0aGUga2VybmVsLgo+Pgo+PiBTaWduZWQtb2ZmLWJ5OiBM ZW4gQmFrZXIgPGxlbi5iYWtlckBnbXguY29tPgo+PiAtLS0KPj4gICBkcml2ZXJzL3NvYy9yZW5l c2FzL3I4YTc3OWEwLXN5c2MuYyB8IDYgKysrKy0tCj4+ICAgZHJpdmVycy9zb2MvcmVuZXNhcy9y Y2FyLXN5c2MuYyAgICAgfCA2ICsrKystLQo+PiAgIDIgZmlsZXMgY2hhbmdlZCwgOCBpbnNlcnRp b25zKCspLCA0IGRlbGV0aW9ucygtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9zb2MvcmVu ZXNhcy9yOGE3NzlhMC1zeXNjLmMgYi9kcml2ZXJzL3NvYy9yZW5lc2FzL3I4YTc3OWEwLXN5c2Mu Ywo+PiBpbmRleCBkNDY0ZmZhMWJlMzMuLjc0MTBiOWZhOTg0NiAxMDA2NDQKPj4gLS0tIGEvZHJp dmVycy9zb2MvcmVuZXNhcy9yOGE3NzlhMC1zeXNjLmMKPj4gKysrIGIvZHJpdmVycy9zb2MvcmVu ZXNhcy9yOGE3NzlhMC1zeXNjLmMKPj4gQEAgLTQwNCwxOSArNDA0LDIxIEBAIHN0YXRpYyBpbnQg X19pbml0IHI4YTc3OWEwX3N5c2NfcGRfaW5pdCh2b2lkKQo+PiAgIAlmb3IgKGkgPSAwOyBpIDwg aW5mby0+bnVtX2FyZWFzOyBpKyspIHsKPj4gICAJCWNvbnN0IHN0cnVjdCByOGE3NzlhMF9zeXNj X2FyZWEgKmFyZWEgPSAmaW5mby0+YXJlYXNbaV07Cj4+ICAgCQlzdHJ1Y3QgcjhhNzc5YTBfc3lz Y19wZCAqcGQ7Cj4+ICsJCXNpemVfdCBuOwo+Pgo+PiAgIAkJaWYgKCFhcmVhLT5uYW1lKSB7Cj4+ ICAgCQkJLyogU2tpcCBOVUxMaWZpZWQgYXJlYSAqLwo+PiAgIAkJCWNvbnRpbnVlOwo+PiAgIAkJ fQo+Pgo+PiAtCQlwZCA9IGt6YWxsb2Moc2l6ZW9mKCpwZCkgKyBzdHJsZW4oYXJlYS0+bmFtZSkg KyAxLCBHRlBfS0VSTkVMKTsKPj4gKwkJbiA9IHN0cmxlbihhcmVhLT5uYW1lKSArIDE7Cj4+ICsJ CXBkID0ga3phbGxvYyhzaXplb2YoKnBkKSArIG4sIEdGUF9LRVJORUwpOwo+IFplcm9pbmcgdGhl IGFsbG9jYXRlZCBieXRlcyBpcyBub3QgbmVlZGVkIHNpbmNlIGl0J3MgY29tcGxldGx5Cj4gb3Zl cndyaXR0ZW4gd2l0aCB0aGUgc3RyY3B5KCkvbWVtY3B5KCkuCgpUaGUgc3RyY3B5KCkvbWVtY3B5 KCkgb25seSBvdmVyd3JpdGVzIHRoZSBwZC0+bmFtZSBmaWVsZCwgbm90IHRoZSB3aG9sZSAKcGQg c3RydWN0dXJlLgpJIHRoaW5rIHRoYXQgaXQgaXMgbmVlZGVkIHRvIGtlZXAgdGhlIGt6YWxsb2Mu CgpKdXN0IG15IDJjLApDSgoKPj4gICAJCWlmICghcGQpIHsKPj4gICAJCQllcnJvciA9IC1FTk9N RU07Cj4+ICAgCQkJZ290byBvdXRfcHV0Owo+PiAgIAkJfQo+Pgo+PiAtCQlzdHJjcHkocGQtPm5h bWUsIGFyZWEtPm5hbWUpOwo+PiArCQltZW1jcHkocGQtPm5hbWUsIGFyZWEtPm5hbWUsIG4pOwo+ PiAgIAkJcGQtPmdlbnBkLm5hbWUgPSBwZC0+bmFtZTsKPj4gICAJCXBkLT5wZHIgPSBhcmVhLT5w ZHI7Cj4+ICAgCQlwZC0+ZmxhZ3MgPSBhcmVhLT5mbGFnczsKPiAKPiBBbmQgc2ltaWxhciBmb3Ig dGhlIHNlY29uZCBodW5rLgo+IAo+IE1mRywKPiAJQmVybmQKPiAKCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcg bGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmlu ZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==