From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E29323368A9; Wed, 6 May 2026 15:03:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778079835; cv=none; b=GNVmVh0Rv+i+H5McfQnIJkru9U69bsTIoW1jewstMsEkADgY+Jj8N4nXndCHkFx8ElwnNnYNO091d17IlVxGEacT7mYYZhkK+F1KMFlTtb5c5xYd7Bqo/eCcaEhoccFtKhNfavKbXgjJGJVX+E9kwzaFeIEXNmEL+BWZhuC41gM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778079835; c=relaxed/simple; bh=bRfHF+S2MFMHyJOxRLpu7TMI5KDisXUMXlQNlpCTENA=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=rddlH5XeCwoEmb3iimvR5peqIQaJFoRVX0D9FLAxGUX1fzluBa5M823scDMDEprk0zX48yTFLe/7AIZD/E4b4F7xpS2BKg508h3YHVSS2lYSt5Am6fl0ZPOt4XFda2ybXxiRO4AzRHSbgZgqdlB8Ve76AfNbiZgb+aCmWkM0qy4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fb5Png8B; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fb5Png8B" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43EA7C2BCB0; Wed, 6 May 2026 15:03:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778079834; bh=bRfHF+S2MFMHyJOxRLpu7TMI5KDisXUMXlQNlpCTENA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=fb5Png8BWp8LnifQPwtX8hdl67jcuQjxo//X1qRsR/B45J40W1yXe+Djpf7E4UmXo fJjQ7StKMp7ICOvQ730YyKYLQJyUjeQYf57DvTuzG6bfOHxwBALz/R1mWZqz8FpkUc 76ry+dNxcSVgnYHxxcp4TEYDWOyT/ynf5idEDeK1hkvc9SmN1Y0p2XV1J/lStv0QWt sMhgBc9f3ZTbutDvhmlHkgx6Ck7WlvkaPxutyOzyYmb9pxvr+jzHSo/vkxJ+CVqFBa Y9giq+678EGDTTlwOYd5GcQ1sxZxSH0Fh9Nm4opLRUqcw6xBOMNNRZA9IZOpbCFFmE MszqTGy6GXWng== Date: Wed, 6 May 2026 11:03:42 -0400 From: Steven Rostedt To: Jens Remus Cc: Josh Poimboeuf , Dave Hansen , "H. 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) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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