From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (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 0DACE38D6AE; Tue, 10 Mar 2026 14:00:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773151235; cv=none; b=dTigyRm/6no5hNC/1+W4GVG3r23clSRFPz5aSpwCehvfZN1ZoTdFsH1QWvGcM9b5SHoHkCWk5ULUPPSUUZJCR4w3ebz5dINBCU/FIwS4ZcoxWuW9di4Kafc7tYy+3Bp5uh4RTmgY/3pPKUOGDxdduLxp38/1rXkEzDU1CoIQT7Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773151235; c=relaxed/simple; bh=9cKCbksrXdq7qQIbd19mcsGEruocKNk/N9O3kK26goI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Y5M/knTJZpROdKPf4OzTi7qwkwVZqS5+ihgieGpmmHOd7QEIWm0k9DPUkYGohGCwo9NAcKR89qanOPhBJ3eg97MabfWwZEiP8fCalLs15dI6W3J8aUPGt5Zwr4nPIClZrQh9iWTgpHoAtd1bmyeHpsceC5ddHHLsTuCRrav3NTA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 9EFDD68C4E; Tue, 10 Mar 2026 15:00:21 +0100 (CET) Date: Tue, 10 Mar 2026 15:00:20 +0100 From: Christoph Hellwig To: Eric Biggers Cc: Christoph Hellwig , Andrew Morton , Richard Henderson , Matt Turner , Magnus Lindholm , Russell King , Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , "David S. Miller" , Andreas Larsson , Richard Weinberger , Anton Ivanov , Johannes Berg , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Herbert Xu , Dan Williams , Chris Mason , David Sterba , Arnd Bergmann , Song Liu , Yu Kuai , Li Nan , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-crypto@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-arch@vger.kernel.org, linux-raid@vger.kernel.org Subject: Re: [PATCH 09/25] xor: move generic implementations out of asm-generic/xor.h Message-ID: <20260310140020.GA8490@lst.de> References: <20260226151106.144735-1-hch@lst.de> <20260226151106.144735-10-hch@lst.de> <20260228071521.GK65277@quark> <20260303160911.GI7021@lst.de> 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-Disposition: inline In-Reply-To: <20260303160911.GI7021@lst.de> User-Agent: Mutt/1.5.17 (2007-11-01) On Tue, Mar 03, 2026 at 05:09:11PM +0100, Christoph Hellwig wrote: > And earlier version did this, but it's a bit ugly. What I might > consider is to require architectures that provide optimized version > to opt into any generic one they want to use. This would require > extra kconfig symbols, but be a lot cleaner overall. I looked into this, but because the static_call requires a default version I gave up on it for now. In theory we could build just a single generic one for that and make the others optional, but that feels a bit odd.