From bde4a19fc04f5f46298c86b1acb7a4af1d5f138d Mon Sep 17 00:00:00 2001 From: Todd Kjos Date: Fri, 8 Feb 2019 10:35:20 -0800 Subject: binder: use userspace pointer as base of buffer space Now that alloc->buffer points to the userspace vm_area rename buffer->data to buffer->user_data and rename local pointers that hold user addresses. Also use the "__user" tag to annotate all user pointers so sparse can flag cases where user pointer vaues are copied to kernel pointers. Refactor code to use offsets instead of user pointers. Signed-off-by: Todd Kjos Signed-off-by: Greg Kroah-Hartman --- drivers/android/binder_trace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/android/binder_trace.h') diff --git a/drivers/android/binder_trace.h b/drivers/android/binder_trace.h index 14de7ac57a34..83cc254d2335 100644 --- a/drivers/android/binder_trace.h +++ b/drivers/android/binder_trace.h @@ -293,7 +293,7 @@ DEFINE_EVENT(binder_buffer_class, binder_transaction_failed_buffer_release, TRACE_EVENT(binder_update_page_range, TP_PROTO(struct binder_alloc *alloc, bool allocate, - void *start, void *end), + void __user *start, void __user *end), TP_ARGS(alloc, allocate, start, end), TP_STRUCT__entry( __field(int, proc) -- cgit v1.2.3