diff options
| author |   Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-04-08 23:31:29 +0100 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-07-08 17:32:10 +0100 |
| commit | 2ad935a15ffa38c7b4739c4f81665318f103b03d (patch) | |
| tree | 357859cc82e33ead38169e38c912e697fa627bc2 | |
| parent | media: staging: atomisp: rework reading the id and revision values (diff) | |
media: staging: media: atomisp: Convert kmap() to kmap_local_page()
The use of kmap() is being deprecated in favor of kmap_local_page() where
it is feasible. With kmap_local_page(), the mapping is per thread, CPU
local and not globally visible.
load_and_flush_by_kmap() is a function where the use of kmap_local_page()
in place of kmap() is correctly suited.
Convert load_and_flush_by_kmap() from kmap() to kmap_local_page().
Link: https://lore.kernel.org/linux-media/20220408223129.3844-1-fmdefrancesco@gmail.com
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
| -rw-r--r-- | drivers/staging/media/atomisp/pci/hmm/hmm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm.c b/drivers/staging/media/atomisp/pci/hmm/hmm.c index 7f0fac779fd5..74cc388a0eef 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm.c @@ -295,7 +295,7 @@ static int load_and_flush_by_kmap(ia_css_ptr virt, void *data, idx = (virt - bo->start) >> PAGE_SHIFT; offset = (virt - bo->start) - (idx << PAGE_SHIFT); - src = (char *)kmap(bo->pages[idx]) + offset; + src = (char *)kmap_local_page(bo->pages[idx]) + offset; if ((bytes + offset) >= PAGE_SIZE) { len = PAGE_SIZE - offset; @@ -314,7 +314,7 @@ static int load_and_flush_by_kmap(ia_css_ptr virt, void *data, clflush_cache_range(src, len); - kunmap(bo->pages[idx]); + kunmap_local(src); } return 0; |