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From: Hauke Mehrtens <hauke@hauke-m.de>
To: Johannes Berg <johannes@sipsolutions.net>, backports@vger.kernel.org
Subject: Re: [PATCH 09/11] backports: dependencies: make ATH9K OWL depend on kernel 3.14
Date: Fri, 4 Oct 2019 21:34:55 +0200	[thread overview]
Message-ID: <d3dc6a55-18b0-b4cc-bd30-8e4efddae3d1@hauke-m.de> (raw)
In-Reply-To: <c403b93ef2fcec5881934c6e6a58363eb24a31b1.camel@sipsolutions.net>


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On 10/4/19 10:55 AM, Johannes Berg wrote:
> On Thu, 2019-10-03 at 17:56 +0200, Hauke Mehrtens wrote:
>> The ath9k owl driver uses pci_lock_rescan_remove() and
>> pci_unlock_rescan_remove() which was added in kernel 3.14, only compile
>> it on kernel >= 3.14.
> 
> This confuses me a bit - isn't pci_stop_and_remove_bus_device() the more
> important part of the API?
> 
> johannes
> 

Hi Johannes,

pci_stop_and_remove_bus_device() is available on kernel 3.10, but this
code does a pci_uock_rescan_remove() and pci_unlock_rescan_remove()
around it and this was added in kernel 3.14, see here:
https://git.kernel.org/linus/9d16947b75831acd317ab9a53e0e94d160731d33

As this is currently only used for the ath9k owl loader and only causes
problems on kernel < 3.14 I did not care much about this.

Hauke


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  reply	other threads:[~2019-10-04 19:35 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-03 15:56 [PATCH 00/11] backports: Update to kernel 5.4-rc1 Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 01/11] backports: patches: refresh against " Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 02/11] backports: pci: include linux/pci-aspm.h Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 03/11] backports: build_bug.h: Add static_assert() Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 04/11] backports: platform_device.h: Add devm_platform_ioremap_resource() Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 05/11] backports: skbuf.h: Add skb_frag_off() Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 06/11] backports: skbuff.h: Add skb_mac_offset() Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 07/11] backports: io.h: Add __ioread32_copy() Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 08/11] backports: io: Add writel_relaxed() Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 09/11] backports: dependencies: make ATH9K OWL depend on kernel 3.14 Hauke Mehrtens
2019-10-04  8:55   ` Johannes Berg
2019-10-04 19:34     ` Hauke Mehrtens [this message]
2019-10-03 15:56 ` [PATCH 10/11] backports: lib-arc4: Do not build when activated in kernel Hauke Mehrtens
2019-10-03 15:56 ` [PATCH 11/11] backports: ckmake: limit load to number of CPUs Hauke Mehrtens

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