Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756001AbYAXMmr (ORCPT ); Thu, 24 Jan 2008 07:42:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753844AbYAXMmG (ORCPT ); Thu, 24 Jan 2008 07:42:06 -0500 Received: from nat-132.atmel.no ([80.232.32.132]:52243 "EHLO relay.atmel.no" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752321AbYAXMmB (ORCPT ); Thu, 24 Jan 2008 07:42:01 -0500 From: Haavard Skinnemoen To: Andrew Morton Cc: Andrew Victor , Remy Bohmer , Chip Coldwell , Marc Pignat , David Brownell , linux-kernel@vger.kernel.org, Alan Cox , Haavard Skinnemoen Subject: [PATCH -mm v4 8/9] atmel_serial: Use container_of instead of direct cast Date: Thu, 24 Jan 2008 13:41:50 +0100 Message-Id: <1201178511-12133-9-git-send-email-hskinnemoen@atmel.com> X-Mailer: git-send-email 1.5.3.8 In-Reply-To: <1201178511-12133-8-git-send-email-hskinnemoen@atmel.com> References: <1201178511-12133-1-git-send-email-hskinnemoen@atmel.com> <1201178511-12133-2-git-send-email-hskinnemoen@atmel.com> <1201178511-12133-3-git-send-email-hskinnemoen@atmel.com> <1201178511-12133-4-git-send-email-hskinnemoen@atmel.com> <1201178511-12133-5-git-send-email-hskinnemoen@atmel.com> <1201178511-12133-6-git-send-email-hskinnemoen@atmel.com> <1201178511-12133-7-git-send-email-hskinnemoen@atmel.com> <1201178511-12133-8-git-send-email-hskinnemoen@atmel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6899 Lines: 182 As pointed out by David Brownell, we really ought to be using container_of when converting from "struct uart_port *" to "struct atmel_uart_port *". Signed-off-by: Haavard Skinnemoen --- drivers/serial/atmel_serial.c | 40 +++++++++++++++++++++++----------------- 1 files changed, 23 insertions(+), 17 deletions(-) diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index e4f9449..2ff92b9 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -157,17 +157,23 @@ static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART]; static struct console atmel_console; #endif +static inline struct atmel_uart_port * +to_atmel_uart_port(struct uart_port *uart) +{ + return container_of(uart, struct atmel_uart_port, uart); +} + #ifdef CONFIG_SERIAL_ATMEL_PDC static bool atmel_use_dma_rx(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); return atmel_port->use_dma_rx; } static bool atmel_use_dma_tx(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); return atmel_port->use_dma_tx; } @@ -330,7 +336,7 @@ static void atmel_buffer_rx_char(struct uart_port *port, unsigned int status, unsigned int ch) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); struct circ_buf *ring = &atmel_port->rx_ring; struct atmel_uart_char *c; @@ -374,7 +380,7 @@ static void atmel_pdc_rxerr(struct uart_port *port, unsigned int status) */ static void atmel_rx_chars(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int status, ch; status = UART_GET_CSR(port); @@ -454,7 +460,7 @@ static void atmel_tx_chars(struct uart_port *port) static void atmel_handle_receive(struct uart_port *port, unsigned int pending) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (atmel_use_dma_rx(port)) { /* @@ -495,7 +501,7 @@ atmel_handle_receive(struct uart_port *port, unsigned int pending) static void atmel_handle_transmit(struct uart_port *port, unsigned int pending) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (atmel_use_dma_tx(port)) { /* PDC transmit */ @@ -519,7 +525,7 @@ static void atmel_handle_status(struct uart_port *port, unsigned int pending, unsigned int status) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (pending & (ATMEL_US_RIIC | ATMEL_US_DSRIC | ATMEL_US_DCDIC | ATMEL_US_CTSIC)) { @@ -555,7 +561,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id) */ static void atmel_tx_dma(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); struct circ_buf *xmit = &port->info->xmit; struct atmel_dma_buffer *pdc = &atmel_port->pdc_tx; int count; @@ -601,7 +607,7 @@ static void atmel_tx_dma(struct uart_port *port) static void atmel_rx_from_ring(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); struct circ_buf *ring = &atmel_port->rx_ring; unsigned int flg; unsigned int status; @@ -669,7 +675,7 @@ static void atmel_rx_from_ring(struct uart_port *port) static void atmel_rx_from_dma(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); struct tty_struct *tty = port->info->tty; struct atmel_dma_buffer *pdc; int rx_idx = atmel_port->pdc_rx_idx; @@ -743,7 +749,7 @@ static void atmel_rx_from_dma(struct uart_port *port) static void atmel_tasklet_func(unsigned long data) { struct uart_port *port = (struct uart_port *)data; - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int status; unsigned int status_change; @@ -788,7 +794,7 @@ static void atmel_tasklet_func(unsigned long data) */ static int atmel_startup(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); int retval; /* @@ -898,7 +904,7 @@ static int atmel_startup(struct uart_port *port) */ static void atmel_shutdown(struct uart_port *port) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); /* * Ensure everything is stopped. */ @@ -955,7 +961,7 @@ static void atmel_shutdown(struct uart_port *port) static void atmel_serial_pm(struct uart_port *port, unsigned int state, unsigned int oldstate) { - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); switch (state) { case 0: @@ -1427,7 +1433,7 @@ static int atmel_serial_suspend(struct platform_device *pdev, pm_message_t state) { struct uart_port *port = platform_get_drvdata(pdev); - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (device_may_wakeup(&pdev->dev) && !at91_suspend_entering_slow_clock()) @@ -1443,7 +1449,7 @@ static int atmel_serial_suspend(struct platform_device *pdev, static int atmel_serial_resume(struct platform_device *pdev) { struct uart_port *port = platform_get_drvdata(pdev); - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); if (atmel_port->suspended) { uart_resume_port(&atmel_uart, port); @@ -1502,7 +1508,7 @@ err_alloc_ring: static int __devexit atmel_serial_remove(struct platform_device *pdev) { struct uart_port *port = platform_get_drvdata(pdev); - struct atmel_uart_port *atmel_port = (struct atmel_uart_port *)port; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); int ret = 0; device_init_wakeup(&pdev->dev, 0); -- 1.5.3.8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/