linux-kernel - Re: [RFC 19/19] checkpatch: warn for use of old PCI pool API

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Date:   Wed, 8 Feb 2017 19:55:50 +0100
From:   Peter Senna Tschudin <peter.senna@...labora.com>
To:     Romain Perier <romain.perier@...labora.com>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Sean Hefty <sean.hefty@...el.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>,
        jeffrey.t.kirsher@...el.com,
        "David S. Miller" <davem@...emloft.net>, stas.yakovlev@...il.com,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Peter Senna Tschudin <peter.senna@...labora.co.uk>
Subject: Re: [RFC 19/19] checkpatch: warn for use of old PCI pool API

On Wed, Feb 08, 2017 at 05:34:57PM +0100, Romain Perier wrote:
> pci_pool_*() functions should be replaced by the corresponding functions
> in the DMA pool API. This adds support to check for use of these pci
> functions and display a warning when it is the case.

Don't know if relevant, but did not catch the struct. Other than that
works fine.

> 
> Signed-off-by: Romain Perier <romain.perier@...labora.com>
> ---
>  scripts/checkpatch.pl | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 8e96af5..026920e 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -6058,6 +6058,11 @@ sub process {
>  			WARN("USE_DEVICE_INITCALL",
>  			     "please use device_initcall() or more appropriate function instead of __initcall() (see include/linux/init.h)\n" . $herecurr);
>  		}
> +# check for old PCI api pci_pool_*(), use dma_pool_*() instead
> +		if ($line =~ /\bpci_pool_.+\(/) {
> +			WARN("USE_PCI_POOL",
> +			     "please use the dma pool api or more appropriate function instead of the old pci pool api\n" . $herecurr);
> +		}
>  
>  # check for various structs that are normally const (ops, kgdb, device_tree)
>  		if ($line !~ /\bconst\b/ &&
> -- 
> 2.9.3
>