From: "Steven Rostedt (Google)" <[email protected]> The sub-buffer pages are held in an unsigned long array, and when it is passed to virt_to_page() a cast is needed.
Link: https://lore.kernel.org/all/[email protected]/ Fixes: 117c39200d9d ("ring-buffer: Introducing ring-buffer mapping functions") Reported-by: Stephen Rothwell <[email protected]> Signed-off-by: Steven Rostedt (Google) <[email protected]> --- kernel/trace/ring_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index a02c7a52a0f5..7345a8b625fb 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -6283,7 +6283,7 @@ static int __rb_map_vma(struct ring_buffer_per_cpu *cpu_buffer, } while (p < nr_pages) { - struct page *page = virt_to_page(cpu_buffer->subbuf_ids[s]); + struct page *page = virt_to_page((void *)cpu_buffer->subbuf_ids[s]); int off = 0; if (WARN_ON_ONCE(s >= nr_subbufs)) { -- 2.43.0
