linux-kernel - Re: [PATCH v3 01/57] dmaengine: ioat: Free up _

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Date:   Fri, 16 Jun 2023 15:41:53 -0700
From:   Dave Jiang <dave.jiang@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        <torvalds@...ux-foundation.org>, <keescook@...omium.org>,
        <gregkh@...uxfoundation.org>, <pbonzini@...hat.com>
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Subject: Re: [PATCH v3 01/57] dmaengine: ioat: Free up __cleanup() name



On 6/12/23 02:07, Peter Zijlstra wrote:
> In order to use __cleanup for __attribute__((__cleanup__(func))) the
> name must not be used for anything else. Avoid the conflict.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>

Acked-by: Dave Jiang <dave.jiang@...el.com>

> ---
>   drivers/dma/ioat/dma.c |   12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)
> 
> --- a/drivers/dma/ioat/dma.c
> +++ b/drivers/dma/ioat/dma.c
> @@ -584,11 +584,11 @@ desc_get_errstat(struct ioatdma_chan *io
>   }
>   
>   /**
> - * __cleanup - reclaim used descriptors
> + * __ioat_cleanup - reclaim used descriptors
>    * @ioat_chan: channel (ring) to clean
>    * @phys_complete: zeroed (or not) completion address (from status)
>    */
> -static void __cleanup(struct ioatdma_chan *ioat_chan, dma_addr_t phys_complete)
> +static void __ioat_cleanup(struct ioatdma_chan *ioat_chan, dma_addr_t phys_complete)
>   {
>   	struct ioatdma_device *ioat_dma = ioat_chan->ioat_dma;
>   	struct ioat_ring_ent *desc;
> @@ -675,7 +675,7 @@ static void ioat_cleanup(struct ioatdma_
>   	spin_lock_bh(&ioat_chan->cleanup_lock);
>   
>   	if (ioat_cleanup_preamble(ioat_chan, &phys_complete))
> -		__cleanup(ioat_chan, phys_complete);
> +		__ioat_cleanup(ioat_chan, phys_complete);
>   
>   	if (is_ioat_halted(*ioat_chan->completion)) {
>   		u32 chanerr = readl(ioat_chan->reg_base + IOAT_CHANERR_OFFSET);
> @@ -712,7 +712,7 @@ static void ioat_restart_channel(struct
>   
>   	ioat_quiesce(ioat_chan, 0);
>   	if (ioat_cleanup_preamble(ioat_chan, &phys_complete))
> -		__cleanup(ioat_chan, phys_complete);
> +		__ioat_cleanup(ioat_chan, phys_complete);
>   
>   	__ioat_restart_chan(ioat_chan);
>   }
> @@ -786,7 +786,7 @@ static void ioat_eh(struct ioatdma_chan
>   
>   	/* cleanup so tail points to descriptor that caused the error */
>   	if (ioat_cleanup_preamble(ioat_chan, &phys_complete))
> -		__cleanup(ioat_chan, phys_complete);
> +		__ioat_cleanup(ioat_chan, phys_complete);
>   
>   	chanerr = readl(ioat_chan->reg_base + IOAT_CHANERR_OFFSET);
>   	pci_read_config_dword(pdev, IOAT_PCI_CHANERR_INT_OFFSET, &chanerr_int);
> @@ -943,7 +943,7 @@ void ioat_timer_event(struct timer_list
>   		/* timer restarted in ioat_cleanup_preamble
>   		 * and IOAT_COMPLETION_ACK cleared
>   		 */
> -		__cleanup(ioat_chan, phys_complete);
> +		__ioat_cleanup(ioat_chan, phys_complete);
>   		goto unlock_out;
>   	}
>   
> 
>