Re: [PATCH] scsi: a100u2w: remove useless variable

From: Julian Calaby
Date: Sat Apr 17 2021 - 02:35:10 EST


Hi Jiapeng,

On Mon, Apr 12, 2021 at 1:23 PM Jiapeng Chong
<jiapeng.chong@xxxxxxxxxxxxxxxxx> wrote:
>
> Fix the following gcc warning:
>
> drivers/scsi/a100u2w.c:1092:8: warning: variable ‘bios_phys’ set but not
> used [-Wunused-but-set-variable].
>
> Reported-by: Abaci Robot <abaci@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Jiapeng Chong <jiapeng.chong@xxxxxxxxxxxxxxxxx>
> ---
> drivers/scsi/a100u2w.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
> index 66c5143..855a3fe 100644
> --- a/drivers/scsi/a100u2w.c
> +++ b/drivers/scsi/a100u2w.c
> @@ -1089,7 +1089,6 @@ static int inia100_probe_one(struct pci_dev *pdev,
> int error = -ENODEV;
> u32 sz;
> unsigned long biosaddr;
> - char *bios_phys;
>
> if (pci_enable_device(pdev))
> goto out;
> @@ -1141,7 +1140,7 @@ static int inia100_probe_one(struct pci_dev *pdev,
>
> biosaddr = host->BIOScfg;
> biosaddr = (biosaddr << 4);
> - bios_phys = phys_to_virt(biosaddr);
> + phys_to_virt(biosaddr);

Does phys_to_virt() have side effects? If it doesn't, there's a lot
more stuff that can get deleted here.

Thanks,

--
Julian Calaby

Email: julian.calaby@xxxxxxxxx
Profile: http://www.google.com/profiles/julian.calaby/