Re: [PATCH] PCI: Put the IVRS table in AMD ACS quirk handler

From: Hanjun Guo <guohanjun@huawei.com>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>, <linux-pci@vger.kernel.org>,
	"Alex Williamson" <alex.williamson@redhat.com>,
	Donald Dutile <ddutile@redhat.com>
Subject: Re: [PATCH] PCI: Put the IVRS table in AMD ACS quirk handler
Date: Thu, 30 Jul 2020 14:14:43 +0800	[thread overview]
Message-ID: <74348feb-5646-6d33-1a84-532f9179df78@huawei.com> (raw)
In-Reply-To: <20200729230242.GA1974304@bjorn-Precision-5520>

On 2020/7/30 7:02, Bjorn Helgaas wrote:
> [+cc Alex, Don]
> 
> On Wed, Jul 22, 2020 at 05:44:28PM +0800, Hanjun Guo wrote:
>> The acpi_get_table() should be coupled with acpi_put_table() if
>> the mapped table is not used at runtime to release the table
>> mapping.
>>
>> In pci_quirk_amd_sb_acs(), IVRS table is just used for checking
>> AMD IOMMU is supported, not used at runtime, put the table after
>> using it.
>>
>> Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
> 
> Applied to pci/virtualization for v5.9, thanks!
> 
> I added this:
> 
>    Fixes: 15b100dfd1c9 ("PCI: Claim ACS support for AMD southbridge devices")
> 
> but I didn't add a stable tag.  Does this cause any issue that would
> warrant a stable tag?

We don't have one when I was sending same function patch for ACPI
subsystem, so I think it's OK to without a stable tag for this
patch as well.

Thanks
Hanjun