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Peter Anvin" , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, x86@kernel.org, bpf@vger.kernel.org, linux-mm@kvack.org, Namhyung Kim , Andrii Nakryiko , "Jose E. Marchesi" , Beau Belgrave , Florian Weimer , "Carlos O'Donell" , Masami Hiramatsu , Jiri Olsa , Arnaldo Carvalho de Melo , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Heiko Carstens , Vasily Gorbik , Ilya Leoshkevich , "Steven Rostedt (Google)" , Indu Bhagat , Peter Zijlstra , Dylan Hatch , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Mathieu Desnoyers , Kees Cook , Sam James Subject: Re: [PATCH v14 04/19] x86/uaccess: Add unsafe_copy_from_user() implementation Message-ID: <20260506110342.25f38f3f@fedora> In-Reply-To: <9f85f092-c376-4350-9a12-479d7b70399a@linux.ibm.com> References: <20260505121718.3572346-1-jremus@linux.ibm.com> <20260505121718.3572346-5-jremus@linux.ibm.com> <9f85f092-c376-4350-9a12-479d7b70399a@linux.ibm.com> X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: E24D9120011 X-Rspamd-Server: rspam04 X-Stat-Signature: xqekpomh4rzwj3z1bz93t4gzujehbu8s X-HE-Tag: 1778079835-454028 X-HE-Meta: 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 pr6d00LY tse9dkOlXr3p2FK0UQlSDYIp/7pPhKZ5TCzT6+bvy+mkpjJaTcECL9oUGs/hLqEhiyPt24Ew1zn2u9KrAHjEBvQi8PJWxe64dYO+HqaPtOJ6j/BWtMgC+0LnHeHtYCw6N8knqS5eCd0rMq4UVbI5+kSPQ3/YwmV8lU9UTkvTsh78GC9SZTQ7e56JeXWgFq+9598qjfOWpOYjh81lb+cPXSbvPb31KJtLGVlniPhXuJC0hbBgCiz6FO7wirYzbMA4Hj72p4lv/I9MlNXtwfpfT8Bka1HuOeYvyQb7D Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 6 May 2026 16:09:16 +0200 Jens Remus wrote: > > +#define unsafe_copy_from_user(_dst, _src, _len, label) \ > > +do { \ > > + void *__dst = (_dst); \ > > + void __user *__src = (_src); \ > > const void __user *__src = (_src); \ > > This was suggested by Sashiko AI review. Any objections? I have no problems with that. -- Steve