linux-kernel - Re: [PATCH v2] PCI: Check value of resource alignment before using _

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Message-ID: <YIFWhL9RvwZJdnAB@unreal>
Date:   Thu, 22 Apr 2021 13:57:08 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Amey Narkhede <ameynarkhede03@...il.com>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] PCI: Check value of resource alignment before using
 __ffs

On Thu, Apr 22, 2021 at 04:25:38PM +0530, Amey Narkhede wrote:
> Return value of __ffs is undefined if no set bit exists in
> its argument. This indicates that the associated BAR has
> invalid alignment.
> 
> Signed-off-by: Amey Narkhede <ameynarkhede03@...il.com>
> ---
>  drivers/pci/setup-bus.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 

Thanks,
Reviewed-by: Leon Romanovsky <leonro@...dia.com>