linux-kernel - Re: [PATCH v2] PCI: endpoint: Clear BAR before freeing its space

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Message-ID: <20190611100915.GD29976@redmoon>
Date:   Tue, 11 Jun 2019 11:09:15 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Alan Mikhak <alan.mikhak@...ive.com>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        kishon@...com, linux-riscv@...ts.infradead.org, palmer@...ive.com,
        paul.walmsley@...ive.com
Subject: Re: [PATCH v2] PCI: endpoint: Clear BAR before freeing its space

On Thu, May 23, 2019 at 02:57:27PM -0700, Alan Mikhak wrote:
> Associated pci_epf_bar structure is needed in pci_epc_clear_bar() but
> would be cleared in pci_epf_free_space(), if called first, and BAR
> would not get cleared.
> 
> Signed-off-by: Alan Mikhak <alan.mikhak@...ive.com>
> ---
>  drivers/pci/endpoint/functions/pci-epf-test.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied to pci/endpoint for v5.3, thanks.

Lorenzo

> diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
> index 27806987e93b..f81a219dde5b 100644
> --- a/drivers/pci/endpoint/functions/pci-epf-test.c
> +++ b/drivers/pci/endpoint/functions/pci-epf-test.c
> @@ -381,8 +381,8 @@ static void pci_epf_test_unbind(struct pci_epf *epf)
>  		epf_bar = &epf->bar[bar];
>  
>  		if (epf_test->reg[bar]) {
> -			pci_epf_free_space(epf, epf_test->reg[bar], bar);
>  			pci_epc_clear_bar(epc, epf->func_no, epf_bar);
> +			pci_epf_free_space(epf, epf_test->reg[bar], bar);
>  		}
>  	}
>  }
> -- 
> 2.7.4
>