linux-kernel - Re: [PATCH] ARM: Misc minor interrupt handler cleanups

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Date:	Fri, 26 Oct 2007 23:56:39 +0200
From:	Lennert Buytenhek <buytenh@...tstofly.org>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, akpm@...ux-foundation.org,
	rmk@....linux.org.uk, kernel@...tstofly.org
Subject: Re: [PATCH] ARM: Misc minor interrupt handler cleanups

On Fri, Oct 26, 2007 at 05:40:25AM -0400, Jeff Garzik wrote:

> mach-integrator/pci_v3.c: no need to reference 'irq' arg, its constant
> 
> mach-omap1/pm.c: remove extra whitespace
> 
> arch/arm/mach-sa1100/ssp.c: remove braces around single C stmt
> 
> arch/arm/plat-omap/mcbsp.c:
> 	- remove pointless casts from void*
> 	- make longer lines more readable
> 
> Signed-off-by: Jeff Garzik <jgarzik@...hat.com>

FWIW

Acked-by: Lennert Buytenhek <buytenh@...tstofly.org>


> ---
>  arch/arm/mach-integrator/pci_v3.c |    8 +++++---
>  arch/arm/mach-omap1/pm.c          |    2 +-
>  arch/arm/mach-sa1100/ssp.c        |    3 +--
>  arch/arm/plat-omap/mcbsp.c        |   20 ++++++++++++--------
>  4 files changed, 19 insertions(+), 14 deletions(-)
> 
> diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
> index d4d8134..d55fa4e 100644
> --- a/arch/arm/mach-integrator/pci_v3.c
> +++ b/arch/arm/mach-integrator/pci_v3.c
> @@ -440,7 +440,7 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
>  	return 1;
>  }
>  
> -static irqreturn_t v3_irq(int irq, void *devid)
> +static irqreturn_t v3_irq(int dummy, void *devid)
>  {
>  #ifdef CONFIG_DEBUG_LL
>  	struct pt_regs *regs = get_irq_regs();
> @@ -448,8 +448,10 @@ static irqreturn_t v3_irq(int irq, void *devid)
>  	unsigned long instr = *(unsigned long *)pc;
>  	char buf[128];
>  
> -	sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x ISTAT=%02x\n", irq,
> -		pc, instr, __raw_readl(SC_LBFADDR), __raw_readl(SC_LBFCODE) & 255,
> +	sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x "
> +		"ISTAT=%02x\n", IRQ_AP_V3INT, pc, instr,
> +		__raw_readl(SC_LBFADDR),
> +		__raw_readl(SC_LBFCODE) & 255,
>  		v3_readb(V3_LB_ISTAT));
>  	printascii(buf);
>  #endif
> diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
> index 3bf01e2..94c299b 100644
> --- a/arch/arm/mach-omap1/pm.c
> +++ b/arch/arm/mach-omap1/pm.c
> @@ -646,7 +646,7 @@ static void omap_pm_finish(void)
>  }
>  
>  
> -static irqreturn_t  omap_wakeup_interrupt(int irq, void *dev)
> +static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
>  {
>  	return IRQ_HANDLED;
>  }
> diff --git a/arch/arm/mach-sa1100/ssp.c b/arch/arm/mach-sa1100/ssp.c
> index 59703c6..06206ce 100644
> --- a/arch/arm/mach-sa1100/ssp.c
> +++ b/arch/arm/mach-sa1100/ssp.c
> @@ -29,9 +29,8 @@ static irqreturn_t ssp_interrupt(int irq, void *dev_id)
>  {
>  	unsigned int status = Ser4SSSR;
>  
> -	if (status & SSSR_ROR) {
> +	if (status & SSSR_ROR)
>  		printk(KERN_WARNING "SSP: receiver overrun\n");
> -	}
>  
>  	Ser4SSSR = SSSR_ROR;
>  
> diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
> index f7b9ccd..2af5bd5 100644
> --- a/arch/arm/plat-omap/mcbsp.c
> +++ b/arch/arm/plat-omap/mcbsp.c
> @@ -98,9 +98,10 @@ static void omap_mcbsp_dump_reg(u8 id)
>  
>  static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id)
>  {
> -	struct omap_mcbsp * mcbsp_tx = (struct omap_mcbsp *)(dev_id);
> +	struct omap_mcbsp *mcbsp_tx = dev_id;
>  
> -	DBG("TX IRQ callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2));
> +	DBG("TX IRQ callback : 0x%x\n",
> +	    OMAP_MCBSP_READ(mcbsp_tx->io_base, SPCR2));
>  
>  	complete(&mcbsp_tx->tx_irq_completion);
>  	return IRQ_HANDLED;
> @@ -108,9 +109,10 @@ static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id)
>  
>  static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id)
>  {
> -	struct omap_mcbsp * mcbsp_rx = (struct omap_mcbsp *)(dev_id);
> +	struct omap_mcbsp *mcbsp_rx = dev_id;
>  
> -	DBG("RX IRQ callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2));
> +	DBG("RX IRQ callback : 0x%x\n",
> +	    OMAP_MCBSP_READ(mcbsp_rx->io_base, SPCR2));
>  
>  	complete(&mcbsp_rx->rx_irq_completion);
>  	return IRQ_HANDLED;
> @@ -118,9 +120,10 @@ static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id)
>  
>  static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data)
>  {
> -	struct omap_mcbsp * mcbsp_dma_tx = (struct omap_mcbsp *)(data);
> +	struct omap_mcbsp *mcbsp_dma_tx = data;
>  
> -	DBG("TX DMA callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2));
> +	DBG("TX DMA callback : 0x%x\n",
> +	    OMAP_MCBSP_READ(mcbsp_dma_tx->io_base, SPCR2));
>  
>  	/* We can free the channels */
>  	omap_free_dma(mcbsp_dma_tx->dma_tx_lch);
> @@ -131,9 +134,10 @@ static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data)
>  
>  static void omap_mcbsp_rx_dma_callback(int lch, u16 ch_status, void *data)
>  {
> -	struct omap_mcbsp * mcbsp_dma_rx = (struct omap_mcbsp *)(data);
> +	struct omap_mcbsp *mcbsp_dma_rx = data;
>  
> -	DBG("RX DMA callback : 0x%x\n", OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2));
> +	DBG("RX DMA callback : 0x%x\n",
> +	    OMAP_MCBSP_READ(mcbsp_dma_rx->io_base, SPCR2));
>  
>  	/* We can free the channels */
>  	omap_free_dma(mcbsp_dma_rx->dma_rx_lch);
> -- 
> 1.5.2.4
-
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