The f_op->mmap interface is deprecated, so update driver to use its successor, mmap_prepare.
The driver previously used vm_iomap_memory(), so this change replaces it with its mmap_prepare equivalent, mmap_action_simple_ioremap(). Reviewed-by: Suren Baghdasaryan <[email protected]> Signed-off-by: Lorenzo Stoakes (Oracle) <[email protected]> --- drivers/misc/open-dice.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/misc/open-dice.c b/drivers/misc/open-dice.c index 24c29e0f00ef..45060fb4ea27 100644 --- a/drivers/misc/open-dice.c +++ b/drivers/misc/open-dice.c @@ -86,29 +86,32 @@ static ssize_t open_dice_write(struct file *filp, const char __user *ptr, /* * Creates a mapping of the reserved memory region in user address space. */ -static int open_dice_mmap(struct file *filp, struct vm_area_struct *vma) +static int open_dice_mmap_prepare(struct vm_area_desc *desc) { + struct file *filp = desc->file; struct open_dice_drvdata *drvdata = to_open_dice_drvdata(filp); - if (vma->vm_flags & VM_MAYSHARE) { + if (vma_desc_test(desc, VMA_MAYSHARE_BIT)) { /* Do not allow userspace to modify the underlying data. */ - if (vma->vm_flags & VM_WRITE) + if (vma_desc_test(desc, VMA_WRITE_BIT)) return -EPERM; /* Ensure userspace cannot acquire VM_WRITE later. */ - vm_flags_clear(vma, VM_MAYWRITE); + vma_desc_clear_flags(desc, VMA_MAYWRITE_BIT); } /* Create write-combine mapping so all clients observe a wipe. */ - vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); - vm_flags_set(vma, VM_DONTCOPY | VM_DONTDUMP); - return vm_iomap_memory(vma, drvdata->rmem->base, drvdata->rmem->size); + desc->page_prot = pgprot_writecombine(desc->page_prot); + vma_desc_set_flags(desc, VMA_DONTCOPY_BIT, VMA_DONTDUMP_BIT); + mmap_action_simple_ioremap(desc, drvdata->rmem->base, + drvdata->rmem->size); + return 0; } static const struct file_operations open_dice_fops = { .owner = THIS_MODULE, .read = open_dice_read, .write = open_dice_write, - .mmap = open_dice_mmap, + .mmap_prepare = open_dice_mmap_prepare, }; static int __init open_dice_probe(struct platform_device *pdev) -- 2.53.0
