[bug report] ring-buffer: Introduce ring-buffer remotes

[Dan Carpenter <error27@gmail.com>]

Hello Vincent Donnefort,

Commit 2e67fabd8b77 ("ring-buffer: Introduce ring-buffer remotes")
from Mar 9, 2026 (linux-next), leads to the following Smatch static
checker warning:

	kernel/trace/ring_buffer.c:2243 ring_buffer_desc_page()
	warn: array off by one? 'desc->page_va[page_id]'

kernel/trace/ring_buffer.c
    2241 static void *ring_buffer_desc_page(struct ring_buffer_desc *desc, int page_id)
    2242 {
--> 2243         return page_id > desc->nr_page_va ? NULL : (void *)desc->page_va[page_id];
                                ^
Based on the len = struct_size(desc, page_va, desc->nr_page_va), in
ring_buffer_desc(), I'm pretty sure this should be >= instead of >.

    2244 }

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regards,
dan carpenter