diff options
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/android/binder.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c index 09962e87c60..91a96292e6b 100644 --- a/drivers/staging/android/binder.c +++ b/drivers/staging/android/binder.c @@ -246,7 +246,7 @@ struct binder_proc { struct files_struct *files; struct hlist_node release_files_node; void *buffer; - size_t user_buffer_offset; + ptrdiff_t user_buffer_offset; struct list_head buffers; struct rb_root free_buffers; @@ -614,7 +614,8 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate, proc->pid, page_addr); goto err_map_kernel_failed; } - user_page_addr = (size_t)page_addr + proc->user_buffer_offset; + user_page_addr = + (uintptr_t)page_addr + proc->user_buffer_offset; ret = vm_insert_page(vma, user_page_addr, page[0]); if (ret) { printk(KERN_ERR "binder: %d: binder_alloc_buf failed " @@ -635,7 +636,7 @@ free_range: page_addr -= PAGE_SIZE) { page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE]; if (vma) - zap_page_range(vma, (size_t)page_addr + + zap_page_range(vma, (uintptr_t)page_addr + proc->user_buffer_offset, PAGE_SIZE, NULL); err_vm_insert_page_failed: unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE); @@ -716,18 +717,19 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc, "er %p size %zd\n", proc->pid, size, buffer, buffer_size); has_page_addr = - (void *)(((size_t)buffer->data + buffer_size) & PAGE_MASK); + (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK); if (n == NULL) { if (size + sizeof(struct binder_buffer) + 4 >= buffer_size) buffer_size = size; /* no room for other buffers */ else buffer_size = size + sizeof(struct binder_buffer); } - end_page_addr = (void *)PAGE_ALIGN((size_t)buffer->data + buffer_size); + end_page_addr = + (void *)PAGE_ALIGN((uintptr_t)buffer->data + buffer_size); if (end_page_addr > has_page_addr) end_page_addr = has_page_addr; if (binder_update_page_range(proc, 1, - (void *)PAGE_ALIGN((size_t)buffer->data), end_page_addr, NULL)) + (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr, NULL)) return NULL; rb_erase(best_fit, &proc->free_buffers); @@ -758,12 +760,12 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc, static void *buffer_start_page(struct binder_buffer *buffer) { - return (void *)((size_t)buffer & PAGE_MASK); + return (void *)((uintptr_t)buffer & PAGE_MASK); } static void *buffer_end_page(struct binder_buffer *buffer) { - return (void *)(((size_t)(buffer + 1) - 1) & PAGE_MASK); + return (void *)(((uintptr_t)(buffer + 1) - 1) & PAGE_MASK); } static void binder_delete_free_buffer( @@ -841,8 +843,8 @@ static void binder_free_buf( } binder_update_page_range(proc, 0, - (void *)PAGE_ALIGN((size_t)buffer->data), - (void *)(((size_t)buffer->data + buffer_size) & PAGE_MASK), + (void *)PAGE_ALIGN((uintptr_t)buffer->data), + (void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK), NULL); rb_erase(&buffer->rb_node, &proc->allocated_buffers); buffer->free = 1; @@ -2347,7 +2349,7 @@ retry: tr.data_size = t->buffer->data_size; tr.offsets_size = t->buffer->offsets_size; - tr.data.ptr.buffer = (void *)((void *)t->buffer->data + proc->user_buffer_offset); + tr.data.ptr.buffer = (void *)t->buffer->data + proc->user_buffer_offset; tr.data.ptr.offsets = tr.data.ptr.buffer + ALIGN(t->buffer->data_size, sizeof(void *)); if (put_user(cmd, (uint32_t __user *)ptr)) @@ -2753,7 +2755,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma) goto err_get_vm_area_failed; } proc->buffer = area->addr; - proc->user_buffer_offset = vma->vm_start - (size_t)proc->buffer; + proc->user_buffer_offset = vma->vm_start - (uintptr_t)proc->buffer; #ifdef CONFIG_CPU_CACHE_VIPT if (cache_is_vipt_aliasing()) { |