From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=162.243.120.170 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792521808; b=kbX7SV9VxatTLBEZqG6ZSc9URO9biwP8flbRaakgorIDSUP929YqshvsNwpMSJPOrbG8 XJgyHsnMsbVlDvN3VGTCfwHydjDgpKVCpx38lSb5FzfAVqoFaBAiwENNoPMVDxl1z3r9K DvGfRO5frQ5SFrZiIL58oFPOMCkvbxxWFgaJKrkPGlYKIvaXA7x7SnE87cOTZFJe7xmZs tXSOblh+dY+QPMDZzZLTicZishMiHlF2QgP0l1cZUh281rHMWpOLc1uEToyz5yA24dWpd zvzvCut3QlJppsEPEl94htKi/W24NRgP4qCScVQQ+CARrB5UyRxWA/dQL0TAltVY8Ow== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792521808; h=DMARC-Filter:DKIM-Signature:Received:From:To:Cc:Subject:Date: Message-ID:X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding:X-Spam_score:X-Spam_bar; bh=Gxgg5VeXayw266nUh/HtSJVl1YD2GuN5qO40kUlAA8g=; b=u/pfL5d4hdstmgHWsS3Xs6Urc2lpF/GSbJaUfe9CPvypUVjj38jCpvzYToaObjueKBHU qS9AEssDDL8RaDciQ/UJulMmY/G06wKNSoxpeehWpm9wgstqGiZJzHyyUyP58+zT7rNsO Qr3kJtzGuXkntxirm/LCU+Qgm493srqZclQKxNkKuInwM+1Cskg2BZraKHw4K/XtKOkwo JRjMnqFX4Sh7i8+PfoXiDVrHl57chwvzYPun/nbacq4XjfoGZac1vclA+umPNf6GhgQEH WwezcHu875lLxWRcbuUHgxKG6P1CkIyCVXQDqAP3ywK5s+nICgUmitQJC2vHcRDyF/w== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=hugovil.com; spf=pass smtp.mailfrom=hugovil.com; dkim=pass header.d=hugovil.com header.i=@hugovil.com header.a=rsa-sha256 header.s=default header.b=C6uETg4Z; arc=none smtp.remote-ip=162.243.120.170 Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A7208606A326; Tue, 20 Oct 2026 18:43:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org A7208606A326 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=hugovil.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=hugovil.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=hugovil.com header.i=@hugovil.com header.a=rsa-sha256 header.s=default header.b=C6uETg4Z DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=hugovil.com ; s=default; h=Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject :Cc:To:From:subject:date:message-id:reply-to; bh=Gxgg5VeXayw266nUh/HtSJVl1YD2GuN5qO40kUlAA8g=; b=C6uETg4ZADEBhX6oqpg7CxZ0UC x2vsvs2kHmUwuKlPiO+tHuYsfOBVbo+JJTVj4hNd6Ej5BxgQOE57rQ7KXWF2CbcSMxKQf+SJPZTqr Y9xihqm/lOYkuCcA68SmevGI2UlWFQxR8i9YUpE2uuzMsu05+gNIT6klGYslRFEyCFkQ=; Received: from modemcable168.174-80-70.mc.videotron.ca ([70.80.174.168] helo=pettiford.lan) by mail.hugovil.com with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1xJEo3-000000000nG-2QO7; Tue, 20 Oct 2026 14:43:25 -0400 From: Hugo Villeneuve To: gregkh@linuxfoundation.org, jirislaby@kernel.org, alan@linux.intel.com Cc: hugo@hugovil.com, gregkh@suse.de, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Hugo Villeneuve Subject: [PATCH 4/5] serial: core: avoid redundant baud assignment without any UPF_SPD_* flags Date: Tue, 20 Oct 2026 14:41:20 -0400 Message-ID: <20261020184131.2893575-5-hugo@hugovil.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261020184131.2893575-1-hugo@hugovil.com> References: <20261020184131.2893575-1-hugo@hugovil.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam_score: -1.0 X-Spam_bar: - From: Hugo Villeneuve If no UPF_SPD_* flags are set, the spd_* flags kludge is not necessary, so avoid redundant and confusing "baud = altbaud" assignment. No functional change intended. Signed-off-by: Hugo Villeneuve --- drivers/tty/serial/serial_core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index d9ed7db53e68d..08a6afa75af07 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -494,7 +494,7 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, altbaud = 460800; break; default: - altbaud = 38400; + altbaud = 0; break; } @@ -505,7 +505,7 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, * The spd_hi, spd_vhi, spd_shi, spd_warp kludge... * Die! Die! Die! */ - if (try == 0 && baud == 38400) + if (altbaud && baud == 38400) baud = altbaud; /* @@ -517,6 +517,8 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, if (baud >= min && baud <= max) return baud; + altbaud = 0; /* No more spd_* kludge for next iterations. */ + /* * If the range cannot be met then try again with * the old baud rate if possible. -- 2.47.3