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Rob Herring 83b8a6f242 drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap Commit `c40069cb7b` ("drm: add mmap() to drm_gem_object_funcs") introduced a GEM object mmap() hook which is expected to subtract the fake offset from vm_pgoff. However, for mmap() on dmabufs, there is not a fake offset. To fix this, let's always call mmap() object callback with an offset of 0, and leave it up to drm_gem_mmap_obj() to remove the fake offset. TTM still needs the fake offset, so we have to add it back until that's fixed. Fixes: `c40069cb7b` ("drm: add mmap() to drm_gem_object_funcs") Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191024191859.31700-1-robh@kernel.org		2019-10-29 13:29:21 -05:00
Documentation	drm/todo: Clarify situation around fbdev and defio	2019-10-28 10:08:46 +01:00
LICENSES	…
arch	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-10-20 06:31:14 -04:00
block	…
certs	…
crypto	…
drivers	drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap	2019-10-29 13:29:21 -05:00
fs	…
include	drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap	2019-10-29 13:29:21 -05:00
init	…
ipc	…
kernel	Kbuild fixes for v5.4 (2nd)	2019-10-20 12:36:57 -04:00
lib	…
mm	…
net	…
samples	…
scripts	Kbuild fixes for v5.4 (2nd)	2019-10-20 12:36:57 -04:00
security	…
sound	…
tools	kselftests: Add dma-heap test	2019-10-25 17:01:50 +05:30
usr	…
virt	…
.clang-format	…
.cocciconfig	…
.get_maintainer.ignore	…
.gitattributes	…
.gitignore	…
.mailmap	…
COPYING	…
CREDITS	…
Kbuild	…
Kconfig	…
MAINTAINERS	dma-buf: Add dma-buf heaps framework	2019-10-25 17:01:45 +05:30
Makefile	Linux 5.4-rc4	2019-10-20 15:56:22 -04:00
README	…

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.