linux-kernel - Re: [PATCH -next] powerpc/powernv/sriov: Remove unused but set variable 'phb'

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Date:   Tue, 28 Jul 2020 09:58:49 +1000
From:   "Oliver O'Halloran" <oohall@...il.com>
To:     Wei Yongjun <weiyongjun1@...wei.com>
Cc:     Hulk Robot <hulkci@...wei.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Alexey Kardashevskiy <aik@...abs.ru>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] powerpc/powernv/sriov: Remove unused but set
 variable 'phb'

On Tue, Jul 28, 2020 at 3:01 AM Wei Yongjun <weiyongjun1@...wei.com> wrote:
>
> Gcc report warning as follows:
>
> arch/powerpc/platforms/powernv/pci-sriov.c:602:25: warning:
>  variable 'phb' set but not used [-Wunused-but-set-variable]
>   602 |  struct pnv_phb        *phb;
>       |                         ^~~
>
> This variable is not used, so this commit removing it.
>
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
> ---
>  arch/powerpc/platforms/powernv/pci-sriov.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/arch/powerpc/platforms/powernv/pci-sriov.c b/arch/powerpc/platforms/powernv/pci-sriov.c
> index 8404d8c3901d..7894745fd4f8 100644
> --- a/arch/powerpc/platforms/powernv/pci-sriov.c
> +++ b/arch/powerpc/platforms/powernv/pci-sriov.c
> @@ -599,10 +599,8 @@ static int pnv_pci_vf_resource_shift(struct pci_dev *dev, int offset)
>  static void pnv_pci_sriov_disable(struct pci_dev *pdev)
>  {
>         u16                    num_vfs, base_pe;
> -       struct pnv_phb        *phb;
>         struct pnv_iov_data   *iov;
>
> -       phb = pci_bus_to_pnvhb(pdev->bus);
>         iov = pnv_iov_get(pdev);
>         num_vfs = iov->num_vfs;
>         base_pe = iov->vf_pe_arr[0].pe_number;
>

Acked-by: Oliver O'Halloran <oohall@...il.com>