From: Fabian Frederick Date: Sun, 5 Oct 2014 17:01:04 +0000 (+0200) Subject: serial: use container_of to resolve uart_ip22zilog_port from uart_port X-Git-Tag: firefly_0821_release~176^2~2678^2~143 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2413b320625f0c8d5292f417923326177691b09b;p=firefly-linux-kernel-4.4.55.git serial: use container_of to resolve uart_ip22zilog_port from uart_port Use container_of instead of casting first structure member. Signed-off-by: Fabian Frederick Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c index 99b7b8697861..991e6dce916e 100644 --- a/drivers/tty/serial/ip22zilog.c +++ b/drivers/tty/serial/ip22zilog.c @@ -544,7 +544,8 @@ static unsigned int ip22zilog_get_mctrl(struct uart_port *port) /* The port lock is held and interrupts are disabled. */ static void ip22zilog_set_mctrl(struct uart_port *port, unsigned int mctrl) { - struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port; + struct uart_ip22zilog_port *up = + container_of(port, struct uart_ip22zilog_port, port); struct zilog_channel *channel = ZILOG_CHANNEL_FROM_PORT(port); unsigned char set_bits, clear_bits; @@ -568,7 +569,8 @@ static void ip22zilog_set_mctrl(struct uart_port *port, unsigned int mctrl) /* The port lock is held and interrupts are disabled. */ static void ip22zilog_stop_tx(struct uart_port *port) { - struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port; + struct uart_ip22zilog_port *up = + container_of(port, struct uart_ip22zilog_port, port); up->flags |= IP22ZILOG_FLAG_TX_STOPPED; } @@ -576,7 +578,8 @@ static void ip22zilog_stop_tx(struct uart_port *port) /* The port lock is held and interrupts are disabled. */ static void ip22zilog_start_tx(struct uart_port *port) { - struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port; + struct uart_ip22zilog_port *up = + container_of(port, struct uart_ip22zilog_port, port); struct zilog_channel *channel = ZILOG_CHANNEL_FROM_PORT(port); unsigned char status; @@ -636,7 +639,8 @@ static void ip22zilog_stop_rx(struct uart_port *port) /* The port lock is held. */ static void ip22zilog_enable_ms(struct uart_port *port) { - struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port; + struct uart_ip22zilog_port *up = + container_of(port, struct uart_ip22zilog_port, port); struct zilog_channel *channel = ZILOG_CHANNEL_FROM_PORT(port); unsigned char new_reg; @@ -652,7 +656,8 @@ static void ip22zilog_enable_ms(struct uart_port *port) /* The port lock is not held. */ static void ip22zilog_break_ctl(struct uart_port *port, int break_state) { - struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port; + struct uart_ip22zilog_port *up = + container_of(port, struct uart_ip22zilog_port, port); struct zilog_channel *channel = ZILOG_CHANNEL_FROM_PORT(port); unsigned char set_bits, clear_bits, new_reg; unsigned long flags; @@ -873,7 +878,8 @@ static void ip22zilog_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old) { - struct uart_ip22zilog_port *up = (struct uart_ip22zilog_port *) port; + struct uart_ip22zilog_port *up = + container_of(port, struct uart_ip22zilog_port, port); unsigned long flags; int baud, brg;