From patchwork Mon Jun 20 10:34:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 12887309 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2579DC43334 for ; Mon, 20 Jun 2022 10:35:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=m6217SbpdxhP9YGYmSwbd26/wdlimBdYUqw6WDuvwJ4=; b=PsJyXOnS+nAl2P GThlZ+sz7G5FZB8EOYYC480SaQOsu7hHkddRavEjPn0PyQjSgmNtpVZbhgFrY4M5CaLvKGMYnel+f s9E3OXQ5/OmaM6lQd1nTbzzGT9BcZgnlrUNzzwGrXnSVfIqlGs/uIl/U1bkeD+aEWerfbc6I4MCaD iFA+LUeU2rDUheViEoDM24RRhbpdl2e5BSkpC+cudS3LXAPA2hVOsX2w8ZUahv58vCxubEl6rpW1I RjaqSadgw1k+1LwnGGW3O7thuQpXjxC+Db2puH0dcksAg1eznFDv50xsLgU43t/vAptYHP8AIxTLE fRBNJE+sM2ZWIyMX8vEw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o3EkA-00HTiv-WB; Mon, 20 Jun 2022 10:34:55 +0000 Received: from mga11.intel.com ([192.55.52.93]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o3Ejt-00HTco-Df; Mon, 20 Jun 2022 10:34:39 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1655721277; x=1687257277; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yH8POsgRhRXCiIZTZnKwKTqk7N6N290ggzSM4QXCYYM=; b=YgJwcoE4QaHVMXFskEbHkCosnamI4givW196e1LcSLE9OO7mqhwnqEkw YRax77Jig2s2ueg4hgEilNHWNTe6KRTdKkU7QDwluHr2FjTXA+a4nBCOy 6P7Nw/t/XKfquib/EW2VboZGyxUjuEiBVEVq/Hi7e+Q9Stp7N/3JqNqOy +bARHh0xlxzVsE8KJNXCrOXSId9lp1LUbM19Q9MtJJ4Pe+utIQFGOkL3G xTD1s6xg36Tb/MybiGIm0OkNb5g6kOoUpMdd2uenDU2Dqqej80Fcz86Pd n+sRBmK4L9Ku2Xq19JiwVuBfuKJtfQH05597NJy73Ib/eRckXqkmhd1Td g==; X-IronPort-AV: E=McAfee;i="6400,9594,10380"; a="277409452" X-IronPort-AV: E=Sophos;i="5.92,306,1650956400"; d="scan'208";a="277409452" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jun 2022 03:34:36 -0700 X-IronPort-AV: E=Sophos;i="5.92,306,1650956400"; d="scan'208";a="643055518" Received: from lspinell-mobl1.ger.corp.intel.com (HELO ijarvine-MOBL2.ger.corp.intel.com) ([10.251.215.169]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jun 2022 03:34:32 -0700 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-serial@vger.kernel.org, Greg KH , Jiri Slaby , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , =?utf-8?q?Andreas?= =?utf-8?q?_F=C3=A4rber?= , Manivannan Sadhasivam , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-actions@lists.infradead.org, linux-unisoc@lists.infradead.org Cc: =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH 5/6] cleanup: Use UART_XMIT_SIZE Date: Mon, 20 Jun 2022 13:34:07 +0300 Message-Id: <20220620103408.37454-6-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220620103408.37454-1-ilpo.jarvinen@linux.intel.com> References: <20220620103408.37454-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220620_033437_558294_6C7CBB3A X-CRM114-Status: GOOD ( 15.69 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Both UART_XMIT_SIZE and SERIAL_XMIT_SIZE are defined. Make them all UART_XMIT_SIZE. Signed-off-by: Ilpo Järvinen --- drivers/tty/amiserial.c | 18 +++++++++--------- drivers/tty/mips_ejtag_fdc.c | 2 +- drivers/tty/serial/meson_uart.c | 2 +- drivers/tty/serial/owl-uart.c | 2 +- drivers/tty/serial/rda-uart.c | 2 +- include/linux/serial.h | 6 ------ include/linux/serial_core.h | 1 + 7 files changed, 14 insertions(+), 19 deletions(-) diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index afb2d373dd47..5458e2b1c125 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -51,6 +51,7 @@ #include #include #include +#include #include #include #include @@ -283,12 +284,12 @@ static void transmit_chars(struct serial_state *info) amiga_custom.serdat = info->xmit.buf[info->xmit.tail++] | 0x100; mb(); - info->xmit.tail = info->xmit.tail & (SERIAL_XMIT_SIZE-1); + info->xmit.tail = info->xmit.tail & (UART_XMIT_SIZE - 1); info->icount.tx++; if (CIRC_CNT(info->xmit.head, info->xmit.tail, - SERIAL_XMIT_SIZE) < WAKEUP_CHARS) + UART_XMIT_SIZE) < WAKEUP_CHARS) tty_wakeup(info->tport.tty); #ifdef SERIAL_DEBUG_INTR @@ -708,13 +709,13 @@ static int rs_put_char(struct tty_struct *tty, unsigned char ch) local_irq_save(flags); if (CIRC_SPACE(info->xmit.head, info->xmit.tail, - SERIAL_XMIT_SIZE) == 0) { + UART_XMIT_SIZE) == 0) { local_irq_restore(flags); return 0; } info->xmit.buf[info->xmit.head++] = ch; - info->xmit.head &= SERIAL_XMIT_SIZE-1; + info->xmit.head &= UART_XMIT_SIZE - 1; local_irq_restore(flags); return 1; } @@ -753,15 +754,14 @@ static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count while (1) { c = CIRC_SPACE_TO_END(info->xmit.head, info->xmit.tail, - SERIAL_XMIT_SIZE); + UART_XMIT_SIZE); if (count < c) c = count; if (c <= 0) { break; } memcpy(info->xmit.buf + info->xmit.head, buf, c); - info->xmit.head = ((info->xmit.head + c) & - (SERIAL_XMIT_SIZE-1)); + info->xmit.head = (info->xmit.head + c) & (UART_XMIT_SIZE - 1); buf += c; count -= c; ret += c; @@ -788,14 +788,14 @@ static unsigned int rs_write_room(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; - return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); + return CIRC_SPACE(info->xmit.head, info->xmit.tail, UART_XMIT_SIZE); } static unsigned int rs_chars_in_buffer(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; - return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); + return CIRC_CNT(info->xmit.head, info->xmit.tail, UART_XMIT_SIZE); } static void rs_flush_buffer(struct tty_struct *tty) diff --git a/drivers/tty/mips_ejtag_fdc.c b/drivers/tty/mips_ejtag_fdc.c index 49907427a165..e81701a66429 100644 --- a/drivers/tty/mips_ejtag_fdc.c +++ b/drivers/tty/mips_ejtag_fdc.c @@ -916,7 +916,7 @@ static int mips_ejtag_fdc_tty_probe(struct mips_cdmm_device *dev) mips_ejtag_fdc_write(priv, REG_FDCFG, cfg); /* Make each port's xmit FIFO big enough to fill FDC TX FIFO */ - priv->xmit_size = min(tx_fifo * 4, (unsigned int)SERIAL_XMIT_SIZE); + priv->xmit_size = min(tx_fifo * 4, (unsigned int)UART_XMIT_SIZE); driver = tty_alloc_driver(NUM_TTY_CHANNELS, TTY_DRIVER_REAL_RAW); if (IS_ERR(driver)) diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c index 4869c0059c98..6c8db19fd572 100644 --- a/drivers/tty/serial/meson_uart.c +++ b/drivers/tty/serial/meson_uart.c @@ -162,7 +162,7 @@ static void meson_uart_start_tx(struct uart_port *port) ch = xmit->buf[xmit->tail]; writel(ch, port->membase + AML_UART_WFIFO); - xmit->tail = (xmit->tail+1) & (SERIAL_XMIT_SIZE - 1); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; } diff --git a/drivers/tty/serial/owl-uart.c b/drivers/tty/serial/owl-uart.c index 44d20e5a7dd3..888e17e3f25f 100644 --- a/drivers/tty/serial/owl-uart.c +++ b/drivers/tty/serial/owl-uart.c @@ -201,7 +201,7 @@ static void owl_uart_send_chars(struct uart_port *port) ch = xmit->buf[xmit->tail]; owl_uart_write(port, ch, OWL_UART_TXDAT); - xmit->tail = (xmit->tail + 1) & (SERIAL_XMIT_SIZE - 1); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; } diff --git a/drivers/tty/serial/rda-uart.c b/drivers/tty/serial/rda-uart.c index f556b4955f59..feb2054aba37 100644 --- a/drivers/tty/serial/rda-uart.c +++ b/drivers/tty/serial/rda-uart.c @@ -353,7 +353,7 @@ static void rda_uart_send_chars(struct uart_port *port) ch = xmit->buf[xmit->tail]; rda_uart_write(port, ch, RDA_UART_RXTX_BUFFER); - xmit->tail = (xmit->tail + 1) & (SERIAL_XMIT_SIZE - 1); + xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; } diff --git a/include/linux/serial.h b/include/linux/serial.h index 0b8b7d7c8f33..70a9866e4abb 100644 --- a/include/linux/serial.h +++ b/include/linux/serial.h @@ -9,7 +9,6 @@ #ifndef _LINUX_SERIAL_H #define _LINUX_SERIAL_H -#include #include /* Helper for dealing with UART_LCR_WLEN* defines */ @@ -25,11 +24,6 @@ struct async_icount { __u32 buf_overrun; }; -/* - * The size of the serial xmit buffer is 1 page, or 4096 bytes - */ -#define SERIAL_XMIT_SIZE PAGE_SIZE - #include #endif /* _LINUX_SERIAL_H */ diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 5518b70177b3..1767dee98021 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -296,6 +296,7 @@ struct uart_state { struct uart_port *uart_port; }; +/* The size of the serial xmit buffer is 1 page, or 4096 bytes */ #define UART_XMIT_SIZE PAGE_SIZE