6.15-stable review patch. If anyone has any objections, please let me know.
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From: Tiffany Yang ynaffit@google.com
[ Upstream commit bea3e7bfa2957d986683543cbf57092715f9a91b ]
The binder allocator selftest was only checking the last page of buffers that ended on a page boundary. Correct the page indexing to account for buffers that are not page-aligned.
Signed-off-by: Tiffany Yang ynaffit@google.com Acked-by: Carlos Llamas cmllamas@google.com Link: https://lore.kernel.org/r/20250714185321.2417234-2-ynaffit@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/android/binder_alloc_selftest.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/android/binder_alloc_selftest.c b/drivers/android/binder_alloc_selftest.c index c88735c54848..486af3ec3c02 100644 --- a/drivers/android/binder_alloc_selftest.c +++ b/drivers/android/binder_alloc_selftest.c @@ -142,12 +142,12 @@ static void binder_selftest_free_buf(struct binder_alloc *alloc, for (i = 0; i < BUFFER_NUM; i++) binder_alloc_free_buf(alloc, buffers[seq[i]]);
- for (i = 0; i < end / PAGE_SIZE; i++) { /** * Error message on a free page can be false positive * if binder shrinker ran during binder_alloc_free_buf * calls above. */ + for (i = 0; i <= (end - 1) / PAGE_SIZE; i++) { if (list_empty(page_to_lru(alloc->pages[i]))) { pr_err_size_seq(sizes, seq); pr_err("expect lru but is %s at page index %d\n",