From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 References: <20221006165346.73159-1-Jason@zx2c4.com> <20221006165346.73159-4-Jason@zx2c4.com> <848ed24c-13ef-6c38-fd13-639b33809194@csgroup.eu> In-Reply-To: <848ed24c-13ef-6c38-fd13-639b33809194@csgroup.eu> From: "Jason A. Donenfeld" Date: Thu, 6 Oct 2022 11:24:16 -0600 Message-ID: Subject: Re: [PATCH v3 3/5] treewide: use get_random_u32() when possible List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: Christophe Leroy Cc: "linux-kernel@vger.kernel.org" , "patches@lists.linux.dev" , Andreas Noever , Andrew Morton , Andy Shevchenko , Borislav Petkov , Catalin Marinas , =?UTF-8?Q?Christoph_B=C3=B6hmwalder?= , Christoph Hellwig , Daniel Borkmann , Dave Airlie , Dave Hansen , "David S . Miller" , Eric Dumazet , Florian Westphal , Greg Kroah-Hartman , "H . Peter Anvin" , Heiko Carstens , Helge Deller , Herbert Xu , Huacai Chen , Hugh Dickins , Jakub Kicinski , "James E . J . Bottomley" , Jan Kara , Jason Gunthorpe , Jens Axboe , Johannes Berg , Jonathan Corbet , Jozsef Kadlecsik , KP Singh , Kees Cook , Marco Elver , Mauro Carvalho Chehab , Michael Ellerman , Pablo Neira Ayuso , Paolo Abeni , Peter Zijlstra , Richard Weinberger , Russell King , Theodore Ts'o , Thomas Bogendoerfer , Thomas Gleixner , Thomas Graf , Ulf Hansson , Vignesh Raghavendra , WANG Xuerui , Will Deacon , Yury Norov , "dri-devel@lists.freedesktop.org" , "kasan-dev@googlegroups.com" , "kernel-janitors@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-block@vger.kernel.org" , "linux-crypto@vger.kernel.org" , "linux-doc@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-media@vger.kernel.org" , "linux-mips@vger.kernel.org" , "linux-mm@kvack.org" , "linux-mmc@vger.kernel.org" , "linux-mtd@lists.infradead.org" , "linux-nvme@lists.infradead.org" , "linux-parisc@vger.kernel.org" , "linux-rdma@vger.kernel.org" , "linux-s390@vger.kernel.org" , "linux-um@lists.infradead.org" , "linux-usb@vger.kernel.org" , "linux-wireless@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "loongarch@lists.linux.dev" , "netdev@vger.kernel.org" , "sparclinux@vger.kernel.org" , "x86@kernel.org" , =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= , Chuck Lever , Jan Kara SGkgQ2hyaXN0b3BoZSwKCk9uIFRodSwgT2N0IDYsIDIwMjIgYXQgMTE6MjEgQU0gQ2hyaXN0b3Bo ZSBMZXJveQo8Y2hyaXN0b3BoZS5sZXJveUBjc2dyb3VwLmV1PiB3cm90ZToKPiBMZSAwNi8xMC8y MDIyIMOgIDE4OjUzLCBKYXNvbiBBLiBEb25lbmZlbGQgYSDDqWNyaXQgOgo+ID4gVGhlIHByYW5k b21fdTMyKCkgZnVuY3Rpb24gaGFzIGJlZW4gYSBkZXByZWNhdGVkIGlubGluZSB3cmFwcGVyIGFy b3VuZAo+ID4gZ2V0X3JhbmRvbV91MzIoKSBmb3Igc2V2ZXJhbCByZWxlYXNlcyBub3csIGFuZCBj b21waWxlcyBkb3duIHRvIHRoZQo+ID4gZXhhY3Qgc2FtZSBjb2RlLiBSZXBsYWNlIHRoZSBkZXBy ZWNhdGVkIHdyYXBwZXIgd2l0aCBhIGRpcmVjdCBjYWxsIHRvCj4gPiB0aGUgcmVhbCBmdW5jdGlv bi4gVGhlIHNhbWUgYWxzbyBhcHBsaWVzIHRvIGdldF9yYW5kb21faW50KCksIHdoaWNoIGlzCj4g PiBqdXN0IGEgd3JhcHBlciBhcm91bmQgZ2V0X3JhbmRvbV91MzIoKS4KPiA+Cj4gPiBSZXZpZXdl ZC1ieTogS2VlcyBDb29rIDxrZWVzY29va0BjaHJvbWl1bS5vcmc+Cj4gPiBBY2tlZC1ieTogVG9r ZSBIw7hpbGFuZC1Kw7hyZ2Vuc2VuIDx0b2tlQHRva2UuZGs+ICMgZm9yIHNjaF9jYWtlCj4gPiBB Y2tlZC1ieTogQ2h1Y2sgTGV2ZXIgPGNodWNrLmxldmVyQG9yYWNsZS5jb20+ICMgZm9yIG5mc2QK PiA+IFJldmlld2VkLWJ5OiBKYW4gS2FyYSA8amFja0BzdXNlLmN6PiAjIGZvciBleHQ0Cj4gPiBT aWduZWQtb2ZmLWJ5OiBKYXNvbiBBLiBEb25lbmZlbGQgPEphc29uQHp4MmM0LmNvbT4KPiA+IC0t LQo+Cj4gPiBkaWZmIC0tZ2l0IGEvYXJjaC9wb3dlcnBjL2tlcm5lbC9wcm9jZXNzLmMgYi9hcmNo L3Bvd2VycGMva2VybmVsL3Byb2Nlc3MuYwo+ID4gaW5kZXggMGZiZGE4OWNkMWJiLi45YzRjMTVh ZmJiZTggMTAwNjQ0Cj4gPiAtLS0gYS9hcmNoL3Bvd2VycGMva2VybmVsL3Byb2Nlc3MuYwo+ID4g KysrIGIvYXJjaC9wb3dlcnBjL2tlcm5lbC9wcm9jZXNzLmMKPiA+IEBAIC0yMzA4LDYgKzIzMDgs NiBAQCB2b2lkIG5vdHJhY2UgX19wcGM2NF9ydW5sYXRjaF9vZmYodm9pZCkKPiA+ICAgdW5zaWdu ZWQgbG9uZyBhcmNoX2FsaWduX3N0YWNrKHVuc2lnbmVkIGxvbmcgc3ApCj4gPiAgIHsKPiA+ICAg ICAgIGlmICghKGN1cnJlbnQtPnBlcnNvbmFsaXR5ICYgQUREUl9OT19SQU5ET01JWkUpICYmIHJh bmRvbWl6ZV92YV9zcGFjZSkKPiA+IC0gICAgICAgICAgICAgc3AgLT0gZ2V0X3JhbmRvbV9pbnQo KSAmIH5QQUdFX01BU0s7Cj4gPiArICAgICAgICAgICAgIHNwIC09IGdldF9yYW5kb21fdTMyKCkg JiB+UEFHRV9NQVNLOwo+ID4gICAgICAgcmV0dXJuIHNwICYgfjB4ZjsKPgo+IElzbid0IHRoYXQg YSBjYW5kaWRhdGUgZm9yIHByYW5kb21fdTMyX21heCgpID8KPgo+IE5vdGUgdGhhdCBzcCBpcyBk ZWVtZWQgdG8gYmUgMTYgYnl0ZXMgYWxpZ25lZCBhdCBhbGwgdGltZS4KClllcywgcHJvYmFibHku IEl0IHNlZW1lZCBub24tdHJpdmlhbCB0byB0aGluayBhYm91dCwgc28gSSBkaWRuJ3QuIEJ1dAps ZXQncyBzZWUgaGVyZS4uLiBtYXliZSBpdCdzIG5vdCB0b28gYmFkOgoKSWYgUEFHRV9NQVNLIGlz IGFsd2F5cyB+KFBBR0VfU0laRS0xKSwgdGhlbiB+UEFHRV9NQVNLIGlzCihQQUdFX1NJWkUtMSks IHNvIHByYW5kb21fdTMyX21heChQQUdFX1NJWkUpIHNob3VsZCB5aWVsZCB0aGUgc2FtZQp0aGlu Zz8gSXMgdGhhdCBhY2N1cmF0ZT8gQW5kIGhvbGRzIGFjcm9zcyBwbGF0Zm9ybXMgKHRoaXMgY29t ZXMgdXAgYQpmZXcgcGxhY2VzKT8gSWYgc28sIEknbGwgZG8gdGhhdCBmb3IgYSB2NC4KCkphc29u CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC11 bSBtYWlsaW5nIGxpc3QKbGludXgtdW1AbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMu aW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXVtCg==