Messages in this thread Patch in this message | | | From | "Fabio M. De Francesco" <> | Subject | [PATCH] staging: media: atomisp: Convert kmap() to kmap_local_page() | Date | Sat, 9 Apr 2022 00:31:29 +0200 |
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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().
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> --- drivers/staging/media/atomisp/pci/hmm/hmm.c | 4 ++-- 1 file 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 c1cda16f2dc0..6394385b6637 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm.c @@ -350,7 +350,7 @@ 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->page_obj[idx].page) + offset; + src = (char *)kmap_local_page(bo->page_obj[idx].page) + offset; if ((bytes + offset) >= PAGE_SIZE) { len = PAGE_SIZE - offset; @@ -369,7 +369,7 @@ static int load_and_flush_by_kmap(ia_css_ptr virt, void *data, clflush_cache_range(src, len); - kunmap(bo->page_obj[idx].page); + kunmap_local(src); } return 0; -- 2.34.1
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