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Wed, 23 Jun 2021 21:52:49 +0800 Message-ID: <9a77839314b3c33970925b5127182c97914c185d.camel@mediatek.com> Subject: Re: [PATCH v2 1/1] kasan: Add memzero init for unaligned size under SLUB debug From: Yee Lee To: CC: , Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov , Andrew Morton , Matthias Brugger , "open list:KASAN" , "open list:MEMORY MANAGEMENT" , open list , "moderated list:ARM/Mediatek SoC support" , "moderated list:ARM/Mediatek SoC support" Date: Wed, 23 Jun 2021 21:52:49 +0800 In-Reply-To: <20210623133533.2246-2-yee.lee@mediatek.com> References: <20210623133533.2246-1-yee.lee@mediatek.com> <20210623133533.2246-2-yee.lee@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=mediatek.com header.s=dk header.b=iqPp4rOD; dmarc=pass (policy=none) header.from=mediatek.com; spf=pass (imf17.hostedemail.com: domain of yee.lee@mediatek.com designates 216.200.240.184 as permitted sender) smtp.mailfrom=yee.lee@mediatek.com X-Stat-Signature: rgyzxgdgbscuf7okbsg5yt6bcfmrogx9 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 93D7E400038B X-HE-Tag: 1624456377-287161 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: U29ycnkgbm90IGEgY29tcGxldGVkIHBhdGNoLg0KUGxlYXNlIHNraXAgdGhpcyBtYWlsLg0KDQpC UiwNClllZQ0KDQpPbiBXZWQsIDIwMjEtMDYtMjMgYXQgMjE6MzUgKzA4MDAsIHllZS5sZWVAbWVk aWF0ZWsuY29tIHdyb3RlOg0KPiBGcm9tOiBZZWUgTGVlIDx5ZWUubGVlQG1lZGlhdGVrLmNvbT4N Cj4gDQo+IElzc3VlOiB3aGVuIFNMVUIgZGVidWcgaXMgb24sIGh3dGFnIGthc2FuX3VucG9pc29u KCkgd291bGQgb3ZlcndyaXRlDQo+IHRoZSByZWR6b25lIHdpdGggdW5hbGlnbmVkIG9iamVjdCBz aXplLg0KPiANCj4gQW4gYWRkaXRpb25hbCBtZW16ZXJvX2V4cGxpY2l0KCkgcGF0aCBpcyBhZGRl ZCB0byByZXBsYWNpbmcgaHd0YWcNCj4gaW5pdGlhbGl6YXRpb24NCj4gYXQgU0xVQiBkZXViZyBt b2RlLg0KPiANCj4gU2lnbmVkLW9mZi1ieTogWWVlIExlZSA8eWVlLmxlZUBtZWRpYXRlay5jb20+ DQo+IFN1Z2dlc3RlZC1ieTogTWFyY28gRWx2ZXIgPGVsdmVyQGdvb2dsZS5jb20+DQo+IENjOiBB bmRyZXkgUnlhYmluaW4gPHJ5YWJpbmluLmEuYUBnbWFpbC5jb20+DQo+IENjOiBBbGV4YW5kZXIg UG90YXBlbmtvIDxnbGlkZXJAZ29vZ2xlLmNvbT4NCj4gQ2M6IEFuZHJleSBLb25vdmFsb3YgPGFu ZHJleWtudmxAZ21haWwuY29tPg0KPiBDYzogRG1pdHJ5IFZ5dWtvdiA8ZHZ5dWtvdkBnb29nbGUu Y29tPg0KPiBDYzogQW5kcmV3IE1vcnRvbiA8YWtwbUBsaW51eC1mb3VuZGF0aW9uLm9yZz4NCj4g LS0tDQo+ICBtbS9rYXNhbi9rYXNhbi5oIHwgNCArKystDQo+ICAxIGZpbGUgY2hhbmdlZCwgMyBp bnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0pDQo+IA0KPiBkaWZmIC0tZ2l0IGEvbW0va2FzYW4v a2FzYW4uaCBiL21tL2thc2FuL2thc2FuLmgNCj4gaW5kZXggZDhmYWE2NDYxNGI3Li5lOTg0YTlh YzgxNGQgMTAwNjQ0DQo+IC0tLSBhL21tL2thc2FuL2thc2FuLmgNCj4gKysrIGIvbW0va2FzYW4v a2FzYW4uaA0KPiBAQCAtMzg3LDEwICszODcsMTIgQEAgc3RhdGljIGlubGluZSB2b2lkIGthc2Fu X3VucG9pc29uKGNvbnN0IHZvaWQNCj4gKmFkZHIsIHNpemVfdCBzaXplLCBib29sIGluaXQpDQo+ ICANCj4gIAlpZiAoV0FSTl9PTigodW5zaWduZWQgbG9uZylhZGRyICYgS0FTQU5fR1JBTlVMRV9N QVNLKSkNCj4gIAkJcmV0dXJuOw0KPiArCSNpZiBJU19FTkFCTEVEKENPTkZJR19TTFVCX0RFQlVH KQ0KPiAgCWlmIChpbml0ICYmICgodW5zaWduZWQgbG9uZylzaXplICYgS0FTQU5fR1JBTlVMRV9N QVNLKSkgew0KPiAgCQlpbml0ID0gZmFsc2U7DQo+IC0JCW1lbXNldCgodm9pZCAqKWFkZHIsIDAs IHNpemUpOw0KPiArCQltZW16ZXJvX2V4cGxpY2l0KCh2b2lkICopYWRkciwgc2l6ZSk7DQo+ICAJ fQ0KPiArCSNlbmRpZg0KPiAgCXNpemUgPSByb3VuZF91cChzaXplLCBLQVNBTl9HUkFOVUxFX1NJ WkUpOw0KPiAgCWh3X3NldF9tZW1fdGFnX3JhbmdlKCh2b2lkICopYWRkciwgc2l6ZSwgdGFnLCBp bml0KTsNCj4gIH0NCg==