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Chris Wilson 5de376bb43 dma-buf: Report signaled links inside dma-fence-chain
Whenever we walk along the dma-fence-chain, we prune signaled links to
keep the chain nice and tidy. This leads to situations where we can
prune a link and report the earlier fence as the target seqno --
violating our own consistency checks that the seqno is not more advanced
than the last element in a dma-fence-chain.

Report a NULL fence and success if the seqno has already been signaled.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Reviewed-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200409110101.18400-2-chris@chris-wilson.co.uk
2020-04-09 19:52:03 +01:00
arch Linux 5.6-rc5 2020-03-11 07:27:21 +10:00
block block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group() 2020-03-06 07:00:58 -07:00
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Documentation dt-bindings: display/bridge: Add binding for NWL mipi dsi host controller 2020-04-09 15:52:39 +02:00
drivers dma-buf: Report signaled links inside dma-fence-chain 2020-04-09 19:52:03 +01:00
fs Driver core / debugfs fixes for 5.6-rc5 2020-03-08 10:39:40 -05:00
include drm: Don't return 0 from a void drm_fbdev_generic_setup 2020-04-08 22:42:39 +01:00
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MAINTAINERS MAINTAINERS: Update feiyang,st7701 panel bindings converted as YAML 2020-04-07 22:11:50 +02:00
Makefile Linux 5.6-rc5 2020-03-08 17:44:44 -07:00
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.