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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-05-15 07:05:58 +0200 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-05-15 07:28:42 +0200 |
| commit | b9c6820f029abaabbc37646093866aa730ca0928 (patch) | |
| tree | 76b9621d2790651e6b11a5923a88befb4c7fb14a | |
| parent | ring-buffer: Have mmapped ring buffer keep track of missed events (diff) | |
| download | linux-b9c6820f029abaabbc37646093866aa730ca0928.tar.xz linux-b9c6820f029abaabbc37646093866aa730ca0928.zip | |
ring-buffer: Add cast to unsigned long addr passed to virt_to_page()
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/20240515124808.06279d04@canb.auug.org.au/
Link: https://lore.kernel.org/linux-trace-kernel/20240515010558.4abaefdd@rorschach.local.home
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fixes: 117c39200d9d ("ring-buffer: Introducing ring-buffer mapping functions")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| -rw-r--r-- | kernel/trace/ring_buffer.c | 2 |
1 files changed, 1 insertions, 1 deletions
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)) { |