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authorSteven Rostedt (Google) <rostedt@goodmis.org>2024-05-15 01:05:58 -0400
committerSteven Rostedt (Google) <rostedt@goodmis.org>2024-05-15 01:28:42 -0400
commitb9c6820f029abaabbc37646093866aa730ca0928 (patch)
tree76b9621d2790651e6b11a5923a88befb4c7fb14a /kernel
parentfe832be05a8eee5f1488cbcc2c562dd82d079fd6 (diff)
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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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/ring_buffer.c2
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)) {