linux-kernel - Re: [PATCH 04/15] serial/fsl_lpuart: Deinline lpuart_transmit

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Message-ID: <562FC14D.6060404@hurleysoftware.com>
Date:	Tue, 27 Oct 2015 14:24:13 -0400
From:	Peter Hurley <peter@...leysoftware.com>
To:	Denys Vlasenko <dvlasenk@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org
Subject: Re: [PATCH 04/15] serial/fsl_lpuart: Deinline lpuart_transmit_buffer,
 save 176 bytes

On 10/27/2015 01:46 PM, Denys Vlasenko wrote:
> This function compiles to 172 bytes of machine code.
> 
> Signed-off-by: Denys Vlasenko <dvlasenk@...hat.com>
> CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> CC: Peter Hurley <peter@...leysoftware.com>
> CC: Jiri Slaby <jslaby@...e.com>
> CC: linux-serial@...r.kernel.org
> ---
>  drivers/tty/serial/fsl_lpuart.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
> index 08ce76f..ac26303 100644
> --- a/drivers/tty/serial/fsl_lpuart.c
> +++ b/drivers/tty/serial/fsl_lpuart.c
> @@ -527,7 +527,7 @@ static inline void lpuart_prepare_rx(struct lpuart_port *sport)
>  	spin_unlock_irqrestore(&sport->port.lock, flags);
>  }
>  
> -static inline void lpuart_transmit_buffer(struct lpuart_port *sport)
> +static void lpuart_transmit_buffer(struct lpuart_port *sport)
>  {
>  	struct circ_buf *xmit = &sport->port.state->xmit;

You'll want to run your script(s) on Greg's tty-next tree;
this file has copy+paste changes for 4.4 that added
lpuart32_transmit_buffer() as an inline function.

Regards,
Peter Hurley
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