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Alex Elder says: ==================== net: ipa: don't disable NAPI in suspend This is version 2 of a series that reworks the order in which things happen during channel stop and suspend (and start and resume), in order to address a hang that has been observed during suspend. The introductory message on the first version of the series gave some history which is omitted here. The end result of this series is that we only enable NAPI and the I/O completion interrupt on a channel when we start the channel for the first time. And we only disable them when stopping the channel "for good." In other words, NAPI and the completion interrupt remain enabled while a channel is stopped for suspend. One comment on version 1 of the series suggested *not* returning early on success in a function, instead having both success and error paths return from the same point at the end of the function block. This has been addressed in this version. In addition, this version consolidates things a little bit, but the net result of the series is exactly the same as version 1 (with the exception of the return fix mentioned above). First, patch 6 in the first version was a small step to make patch 7 easier to understand. The two have been combined now. Second, previous version moved (and for suspend/resume, eliminated) I/O completion interrupt and NAPI disable/enable control in separate steps (patches). Now both are moved around together in patch 5 and 6, which eliminates the need for the final (NAPI-only) patch. I won't repeat the patch summaries provided in v1: https://lore.kernel.org/netdev/20210129202019.2099259-1-elder@linaro.org/ Many thanks to Willem de Bruijn for his thoughtful input. ==================== Link: https://lore.kernel.org/r/20210201172850.2221624-1-elder@linaro.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
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| net | ||
| samples | ||
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| security | ||
| sound | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
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| Kbuild | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.