git grep failure?

Hi,

If I apply the patch at https://lore.kernel.org/linux-doc/c5bb61cf789df1ecb32facc29df9749987c7ddfc.1773346620.git.ljs@kernel.org/

Subject: [PATCH 02/15] mm: add documentation for the mmap_prepare file operation callback

to the Linux kernel tree (e.g., linux-next-20260316), it applies cleanly.

I noticed a typo in the patch ("struct vma_area_desc" should be "struct vm_area_desc"). When I run $ git grep vma_area_desc the output is empty.

Is this expected? (but not by me :)

thanks.