[PATCH] eventpoll: fix sphinx documentation build warning

[Jann Horn]

Sphinx complains that ep_get_upwards_depth_proc() has a kerneldoc-style
comment without documenting its parameters.
This is an internal function that was not meant to show up in kernel
documentation, so fix the warning by changing the comment to a
non-kerneldoc one.

Fixes: 22bacca48a17 ("epoll: prevent creating circular epoll structures")
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Closes: https://lore.kernel.org/r/20250717173655.10ecdce6@xxxxxxxxxxxxxxxx
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202507171958.aMcW08Cn-lkp@xxxxxxxxx/
Signed-off-by: Jann Horn <jannh@xxxxxxxxxx>
---
This should go on the vfs misc branch. (Feel free to squash it or not,
idk how you do that in the VFS tree.)
---
 fs/eventpoll.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 44648cc09250..02ac05322b1b 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -2192,9 +2192,7 @@ static int ep_loop_check_proc(struct eventpoll *ep, int depth)
 	return result;
 }
 
-/**
- * ep_get_upwards_depth_proc - determine depth of @ep when traversed upwards
- */
+/* ep_get_upwards_depth_proc - determine depth of @ep when traversed upwards */
 static int ep_get_upwards_depth_proc(struct eventpoll *ep, int depth)
 {
 	int result = 0;

---
base-commit: 981569a06f704ac9c4eed249f47426e1be1a5636
change-id: 20250721-epoll-sphinx-fix-9716e46a52e6

-- 
Jann Horn <jannh@xxxxxxxxxx>