generate_test_data() acquires a page with alloc_page(GFP_KERNEL). Pages allocated with GFP_KERNEL cannot come from Highmem. This is why there is no need to call kmap() on them. Therefore, use a plain page_address() on that page. Suggested-by: Fabio M. De Francesco <fmdefrancesco@xxxxxxxxx> Signed-off-by: Sumitra Sharma <sumitraartsy@xxxxxxxxx> --- Changes in v2: - Remove the kmap() call and call page_address() instead. - Change the commit subject and message. lib/test_bpf.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/lib/test_bpf.c b/lib/test_bpf.c index ade9ac672adb..70fcd0bcf14b 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -14388,11 +14388,10 @@ static void *generate_test_data(struct bpf_test *test, int sub) if (!page) goto err_kfree_skb; - ptr = kmap(page); + ptr = page_address(page); if (!ptr) goto err_free_page; memcpy(ptr, test->frag_data, MAX_DATA); - kunmap(page); skb_add_rx_frag(skb, 0, page, 0, MAX_DATA, MAX_DATA); } -- 2.25.1
