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 2768E4414; Mon, 24 Feb 2025 07:25:59 +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=1740381960; cv=none; b=QKDr/Pfh1WGKMJ1JZN8gq8FfnUhYhpulatIK1fGxjNxo7jLEgY6UjZFRFHNEjaMN4yKghu6DXku8LwyQR2/LPRO///ZcIMqfiYiXrYVMRDUWTgg72miVLUwzqSb6h1J7DgcU8zAHvptVO0BL5LX7gtjqJvuUN7wIZsRdmS1dioY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740381960; c=relaxed/simple; bh=Ev/dUy3GpjASONjJl6uKfOL4cNi4seeahuvGX+WNh+c=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=IqNdYe1yeVq6SNGGmp9/wBtQKpKBWQH0JqGmzS5hLRtV+VU3WY3xr/hx6irG65/84mh3t9ancEpndPF4M3BDphoi/L6YrAy19zkznIgd7TlHxr5mYoWm1nO22aHr+PFiOC2Tzk2Sn5sD0TTVT2Tq/Q1k6BOlZg8vW9O5BRTlRoU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=W8qDbeq0; 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="W8qDbeq0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CBACFC4CED6; Mon, 24 Feb 2025 07:25:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740381959; bh=Ev/dUy3GpjASONjJl6uKfOL4cNi4seeahuvGX+WNh+c=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=W8qDbeq0SaM7BKTiZ/gS075LT0yk+Mti2FX5dIIerLdf3p6OVbgdW3GW77eSiZgUH J6TuRwDUYiQbwHAn9p5U30H+gkBx69n4+XISCuZVyRGLVeeYGFQ7t6l6pxEnSKQ8T9 kYGAZvqMxC1dKHCuHxw4ApZ5LEXh/RlZkYiBalcONV3ZDR8OVNzUUPsdPZS3U6PGG7 AdneVHdhlAiBMvrfkYhSXfNGz2OZsL4X63czA37h4erTxUciLMA6ANZdMJ9qOoxiHE MKsB3wjpy+5Agn/1wZkpFtxX5iHQgHZIYTe53uuTFp344U4J6IruCyzIBD4+hZwI0j hjA01/8vBsQ1g== Message-ID: Date: Mon, 24 Feb 2025 08:25:46 +0100 Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 07/17] serial: max3100: Replace open-coded parity calculation with parity8() To: Kuan-Wei Chiu , tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, jk@ozlabs.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, yury.norov@gmail.com, akpm@linux-foundation.org Cc: 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, Yu-Chun Lin References: <20250223164217.2139331-1-visitorckw@gmail.com> <20250223164217.2139331-8-visitorckw@gmail.com> Content-Language: en-US From: Jiri Slaby Autocrypt: addr=jirislaby@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 23. 02. 25, 17:42, Kuan-Wei Chiu wrote: > --- a/drivers/tty/serial/max3100.c > +++ b/drivers/tty/serial/max3100.c > @@ -16,6 +16,7 @@ > /* 4 MAX3100s should be enough for everyone */ > #define MAX_MAX3100 4 > > +#include > #include > #include > #include > @@ -133,7 +134,7 @@ static int max3100_do_parity(struct max3100_port *s, u16 c) > else > c &= 0xff; > > - parity = parity ^ (hweight8(c) & 1); > + parity = parity ^ (parity8(c)); > return parity; So all this should be simply: return parity ^ parity8(c); > } > thanks, -- js suse labs