0545e9dc6d
commit d1edce71135cc6d98c0a4b5729774542b676e769 Author: sophgo-forum-service <forum_service@sophgo.com> Date: Fri Mar 15 16:07:33 2024 +0800 [fix] recommend using ssh method to clone repo. [fix] fix sensor driver repo branch name.
21 lines
457 B
C
21 lines
457 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/export.h>
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#include <linux/mm.h>
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#include <linux/io.h>
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#include <asm/pgtable.h>
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pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
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unsigned long size, pgprot_t vma_prot)
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{
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if (!pfn_valid(pfn)) {
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return pgprot_noncached(vma_prot);
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} else if (file->f_flags & O_SYNC) {
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return pgprot_writecombine(vma_prot);
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}
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return vma_prot;
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}
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EXPORT_SYMBOL(phys_mem_access_prot);
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