[for-next][PATCH] ring-buffer: Have parameter to virt_addr_valid() cast to pointer

[Steven Rostedt]

  git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
ring-buffer/for-next

Head SHA1: 7f4decf8f94431afb7e613ac05e927d3592afe37


Steven Rostedt (1):
      ring-buffer: Have parameter to virt_addr_valid() cast to pointer

----
 kernel/trace/ring_buffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---------------------------
commit 7f4decf8f94431afb7e613ac05e927d3592afe37
Author: Steven Rostedt <rostedt@xxxxxxxxxxx>
Date:   Sat Mar 8 12:36:49 2025 -0500

    ring-buffer: Have parameter to virt_addr_valid() cast to pointer
    
    Some architectures expect the parameter passed to virt_addr_valid() to be
    a pointer. Cast the unsigned long parameter to a void pointer.
    
    Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
    Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
    Link: https://lore.kernel.org/20250308123649.1330e9ca@xxxxxxxxxxxxxxxxx
    Reported-by: kernel test robot <lkp@xxxxxxxxx>
    Closes: https://lore.kernel.org/oe-kbuild-all/202503090029.zj0DretW-lkp@xxxxxxxxx/
    Fixes: 10a299da2c2b9 ("ring-buffer: Allow persistent ring buffers to be mmapped")
    Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 649724efd1be..94be81edffd2 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -7134,7 +7134,7 @@ static int __rb_map_vma(struct ring_buffer_per_cpu *cpu_buffer,
 			goto out;
 		}
 
-		if (virt_addr_valid(cpu_buffer->subbuf_ids[s]))
+		if (virt_addr_valid((void *)cpu_buffer->subbuf_ids[s]))
 			page = virt_to_page((void *)cpu_buffer->subbuf_ids[s]);
 		else
 			page = vmalloc_to_page((void *)cpu_buffer->subbuf_ids[s]);