From: bugzilla-daemon@bugzilla.kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 210777] pwc driver doesn't work anymore
Date: Sun, 03 Jan 2021 18:56:42 +0000 [thread overview]
Message-ID: <bug-210777-208809-rumYOSUBFT@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-210777-208809@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=210777
--- Comment #3 from Harald Jenny (harald@a-little-linux-box.at) ---
The problem is presumably related to the changes in the DMA mapping in kernel
5.10 (commit 5a32c3413d3340f90c82c84b375ad4b335a59f28) as pwc uses noncoherent
DMA buffers. Reverting commit 1161db6776bd1c35257e1e362e91bcb1b3fe4347 (which
fixes performance issues) make pwc work again but opens up the orginial problem
of transfer rates on armv7l.
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next parent reply other threads:[~2021-01-03 18:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-210777-208809@https.bugzilla.kernel.org/>
2021-01-03 18:56 ` bugzilla-daemon [this message]
2021-01-06 11:22 ` [Bug 210777] pwc driver doesn't work anymore bugzilla-daemon
2021-01-14 15:39 ` bugzilla-daemon
2021-01-14 17:06 ` bugzilla-daemon
2021-01-14 17:12 ` bugzilla-daemon
2021-01-14 21:47 ` bugzilla-daemon
2021-01-15 6:35 ` Greg KH
2021-01-15 6:28 ` bugzilla-daemon
2021-01-15 6:35 ` bugzilla-daemon
2021-01-15 6:39 ` bugzilla-daemon
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