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Date: Thu, 27 Feb 2020 19:55:49 -0800
From: Joe Perches <joe@...ches.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-kernel@...r.kernel.org
Cc: stable@...r.kernel.org,
Nathan Chancellor <natechancellor@...il.com>,
Sasha Levin <sashal@...nel.org>
Subject: Re: [PATCH 4.14 111/237] tty: synclinkmp: Adjust indentation in
several functions
On Thu, 2020-02-27 at 14:35 +0100, Greg Kroah-Hartman wrote:
> From: Nathan Chancellor <natechancellor@...il.com>
I believe these sorts of whitespace only changes should
not be applied to a stable branch unless it's useful for
porting other actual defect fixes.
> [ Upstream commit 1feedf61e7265128244f6993f23421f33dd93dbc ]
>
> Clang warns:
>
> ../drivers/tty/synclinkmp.c:1456:3: warning: misleading indentation;
> statement is not part of the previous 'if' [-Wmisleading-indentation]
> if (C_CRTSCTS(tty)) {
> ^
> ../drivers/tty/synclinkmp.c:1453:2: note: previous statement is here
> if (I_IXOFF(tty))
> ^
> ../drivers/tty/synclinkmp.c:2473:8: warning: misleading indentation;
> statement is not part of the previous 'if' [-Wmisleading-indentation]
> info->port.tty->hw_stopped = 0;
> ^
> ../drivers/tty/synclinkmp.c:2471:7: note: previous statement is here
> if ( debug_level >= DEBUG_LEVEL_ISR )
> ^
> ../drivers/tty/synclinkmp.c:2482:8: warning: misleading indentation;
> statement is not part of the previous 'if' [-Wmisleading-indentation]
> info->port.tty->hw_stopped = 1;
> ^
> ../drivers/tty/synclinkmp.c:2480:7: note: previous statement is here
> if ( debug_level >= DEBUG_LEVEL_ISR )
> ^
> ../drivers/tty/synclinkmp.c:2809:3: warning: misleading indentation;
> statement is not part of the previous 'if' [-Wmisleading-indentation]
> if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
> ^
> ../drivers/tty/synclinkmp.c:2807:2: note: previous statement is here
> if (I_INPCK(info->port.tty))
> ^
> ../drivers/tty/synclinkmp.c:3246:3: warning: misleading indentation;
> statement is not part of the previous 'else' [-Wmisleading-indentation]
> set_signals(info);
> ^
> ../drivers/tty/synclinkmp.c:3244:2: note: previous statement is here
> else
> ^
> 5 warnings generated.
>
> The indentation on these lines is not at all consistent, tabs and spaces
> are mixed together. Convert to just using tabs to be consistent with the
> Linux kernel coding style and eliminate these warnings from clang.
>
> Link: https://github.com/ClangBuiltLinux/linux/issues/823
> Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
> Link: https://lore.kernel.org/r/20191218024720.3528-1-natechancellor@gmail.com
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Sasha Levin <sashal@...nel.org>
> ---
> drivers/tty/synclinkmp.c | 24 ++++++++++++------------
> 1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
> index 4fed9e7b281f0..3c9e314406b4e 100644
> --- a/drivers/tty/synclinkmp.c
> +++ b/drivers/tty/synclinkmp.c
> @@ -1467,10 +1467,10 @@ static void throttle(struct tty_struct * tty)
> if (I_IXOFF(tty))
> send_xchar(tty, STOP_CHAR(tty));
>
> - if (C_CRTSCTS(tty)) {
> + if (C_CRTSCTS(tty)) {
> spin_lock_irqsave(&info->lock,flags);
> info->serial_signals &= ~SerialSignal_RTS;
> - set_signals(info);
> + set_signals(info);
> spin_unlock_irqrestore(&info->lock,flags);
> }
> }
> @@ -1496,10 +1496,10 @@ static void unthrottle(struct tty_struct * tty)
> send_xchar(tty, START_CHAR(tty));
> }
>
> - if (C_CRTSCTS(tty)) {
> + if (C_CRTSCTS(tty)) {
> spin_lock_irqsave(&info->lock,flags);
> info->serial_signals |= SerialSignal_RTS;
> - set_signals(info);
> + set_signals(info);
> spin_unlock_irqrestore(&info->lock,flags);
> }
> }
> @@ -2484,7 +2484,7 @@ static void isr_io_pin( SLMP_INFO *info, u16 status )
> if (status & SerialSignal_CTS) {
> if ( debug_level >= DEBUG_LEVEL_ISR )
> printk("CTS tx start...");
> - info->port.tty->hw_stopped = 0;
> + info->port.tty->hw_stopped = 0;
> tx_start(info);
> info->pending_bh |= BH_TRANSMIT;
> return;
> @@ -2493,7 +2493,7 @@ static void isr_io_pin( SLMP_INFO *info, u16 status )
> if (!(status & SerialSignal_CTS)) {
> if ( debug_level >= DEBUG_LEVEL_ISR )
> printk("CTS tx stop...");
> - info->port.tty->hw_stopped = 1;
> + info->port.tty->hw_stopped = 1;
> tx_stop(info);
> }
> }
> @@ -2820,8 +2820,8 @@ static void change_params(SLMP_INFO *info)
> info->read_status_mask2 = OVRN;
> if (I_INPCK(info->port.tty))
> info->read_status_mask2 |= PE | FRME;
> - if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
> - info->read_status_mask1 |= BRKD;
> + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
> + info->read_status_mask1 |= BRKD;
> if (I_IGNPAR(info->port.tty))
> info->ignore_status_mask2 |= PE | FRME;
> if (I_IGNBRK(info->port.tty)) {
> @@ -3191,7 +3191,7 @@ static int tiocmget(struct tty_struct *tty)
> unsigned long flags;
>
> spin_lock_irqsave(&info->lock,flags);
> - get_signals(info);
> + get_signals(info);
> spin_unlock_irqrestore(&info->lock,flags);
>
> result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS : 0) |
> @@ -3229,7 +3229,7 @@ static int tiocmset(struct tty_struct *tty,
> info->serial_signals &= ~SerialSignal_DTR;
>
> spin_lock_irqsave(&info->lock,flags);
> - set_signals(info);
> + set_signals(info);
> spin_unlock_irqrestore(&info->lock,flags);
>
> return 0;
> @@ -3241,7 +3241,7 @@ static int carrier_raised(struct tty_port *port)
> unsigned long flags;
>
> spin_lock_irqsave(&info->lock,flags);
> - get_signals(info);
> + get_signals(info);
> spin_unlock_irqrestore(&info->lock,flags);
>
> return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
> @@ -3257,7 +3257,7 @@ static void dtr_rts(struct tty_port *port, int on)
> info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR;
> else
> info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR);
> - set_signals(info);
> + set_signals(info);
> spin_unlock_irqrestore(&info->lock,flags);
> }
>
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