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67e255bf2f
In the linux-4.19 stable kernel, we get a warning about a type
mismatch between phys_addr_t and dma_addr_t:
drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c: In function '_dpu_dbg_dump_dpu_dbg_bus':
drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c:2003:16: error: passing argument 3 of 'dma_alloc_coherent' from incompatible pointer type [-Werror=incompatible-pointer-types]
list_size, &phys, GFP_KERNEL);
^~~~~
In file included from include/linux/dma-buf.h:31,
from drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c:20:
include/linux/dma-mapping.h:561:15: note: expected 'dma_addr_t *' {aka 'long long unsigned int *'} but argument is of type 'phys_addr_t *' {aka 'unsigned int *'}
dma_addr_t *dma_handle, gfp_t flag)
~~~~~~~~~~~~^~~~~~~~~~
drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c: In function '_dpu_dbg_dump_vbif_dbg_bus':
drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c:2154:16: error: passing argument 3 of 'dma_alloc_coherent' from incompatible pointer type [-Werror=incompatible-pointer-types]
list_size, &phys, GFP_KERNEL);
^~~~~
In file included from include/linux/dma-buf.h:31,
from drivers/gpu/drm/msm/disp/dpu1/dpu_dbg.c:20:
include/linux/dma-mapping.h:561:15: note: expected 'dma_addr_t *' {aka 'long long unsigned int *'} but argument is of type 'phys_addr_t *' {aka 'unsigned int *'}
This code was removed in linux-4.20 with upstream commit effec874792f
("drm/msm/dpu: Remove dpu_dbg"). Rather than backporting the large
patch, this just fixes the warning by using the correct type.
Fixes: 25fdd5933e ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.