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Mon, 24 Feb 2025 07:35:59 -0800 (PST) Received: from eleanor-wkdl ([140.116.96.203]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-220d5348f29sm181794265ad.37.2025.02.24.07.35.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Feb 2025 07:35:59 -0800 (PST) Date: Mon, 24 Feb 2025 23:35:48 +0800 From: Yu-Chun Lin To: Jeremy Kerr Cc: Kuan-Wei Chiu , tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, joel@jms.id.au, eajames@linux.ibm.com, andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, dmitry.torokhov@gmail.com, mchehab@kernel.org, awalls@md.metrocast.net, hverkuil@xs4all.nl, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, louis.peens@corigine.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, parthiban.veerasooran@microchip.com, arend.vanspriel@broadcom.com, johannes@sipsolutions.net, gregkh@linuxfoundation.org, jirislaby@kernel.org, yury.norov@gmail.com, akpm@linux-foundation.org, hpa@zytor.com, alistair@popple.id.au, linux@rasmusvillemoes.dk, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-fsi@lists.ozlabs.org, dri-devel@lists.freedesktop.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mtd@lists.infradead.org, oss-drivers@corigine.com, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, brcm80211@lists.linux.dev, brcm80211-dev-list.pdl@broadcom.com, linux-serial@vger.kernel.org, bpf@vger.kernel.org, jserv@ccns.ncku.edu.tw Subject: Re: [PATCH 00/17] Introduce and use generic parity32/64 helper Message-ID: References: <20250223164217.2139331-1-visitorckw@gmail.com> <1cebfebb9c205a1ebc5722ca7e3b87339ceb3c79.camel@ozlabs.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1cebfebb9c205a1ebc5722ca7e3b87339ceb3c79.camel@ozlabs.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250224_073600_910944_EF8AD7E4 X-CRM114-Status: UNSURE ( 8.97 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On Mon, Feb 24, 2025 at 03:58:49PM +0800, Jeremy Kerr wrote: > More so than __builtin_parity() ? > > I'm all for reducing the duplication, but the compiler may well have a > better parity approach than the xor-folding implementation here. Looks > like we can get this to two instructions on powerpc64, for example. Hi Jeremy, Thank for your input. We will do that in V2. Best regards, Yu-Chun Lin ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/