pata_atiixp: Remove unnecessary parentheses

Clang warns when more than one set of parentheses is used for a
single conditional statement:

drivers/ata/pata_atiixp.c:282:19: warning: equality comparison with
extraneous parentheses [-Wparentheses-equality]
        if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
            ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/ata/pata_atiixp.c:282:19: note: remove extraneous parentheses
around the comparison to silence this warning
        if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
           ~             ^                              ~
drivers/ata/pata_atiixp.c:282:19: note: use '=' to turn this equality
comparison into an assignment
        if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
                         ^~
                         =
1 warning generated.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
 drivers/ata/pata_atiixp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

On Tue, Sep 11, 2018 at 2:43 PM Nathan Chancellor
<natechancellor@gmail.com> wrote:
>
> Clang warns when more than one set of parentheses is used for a
> single conditional statement:
>
> drivers/ata/pata_atiixp.c:282:19: warning: equality comparison with
> extraneous parentheses [-Wparentheses-equality]
>         if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
>             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/ata/pata_atiixp.c:282:19: note: remove extraneous parentheses
> around the comparison to silence this warning
>         if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
>            ~             ^                              ~
> drivers/ata/pata_atiixp.c:282:19: note: use '=' to turn this equality
> comparison into an assignment
>         if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
>                          ^~
>                          =

Yeah, I don't think assignment and conditional checking was implied here.
Thanks for the simple fix.
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

> 1 warning generated.
>
> Reported-by: Nick Desaulniers <ndesaulniers@google.com>
> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
> ---
>  drivers/ata/pata_atiixp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
> index 4d49fd3c927b..843bb200a1ee 100644
> --- a/drivers/ata/pata_atiixp.c
> +++ b/drivers/ata/pata_atiixp.c
> @@ -279,7 +279,7 @@ static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
>         const struct ata_port_info *ppi[] = { &info, &info };
>
>         /* SB600 doesn't have secondary port wired */
> -       if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
> +       if (pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE)
>                 ppi[1] = &ata_dummy_port_info;
>
>         return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL,
> --
> 2.18.0
>

On 9/11/18 3:43 PM, Nathan Chancellor wrote:
> Clang warns when more than one set of parentheses is used for a
> single conditional statement:
> 
> drivers/ata/pata_atiixp.c:282:19: warning: equality comparison with
> extraneous parentheses [-Wparentheses-equality]
>         if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
>             ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/ata/pata_atiixp.c:282:19: note: remove extraneous parentheses
> around the comparison to silence this warning
>         if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
>            ~             ^                              ~
> drivers/ata/pata_atiixp.c:282:19: note: use '=' to turn this equality
> comparison into an assignment
>         if((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE))
>                          ^~
>                          =
> 1 warning generated.

Applied for 4.20, thanks.