From 03f51719df032637250af828f9a1ffcc5695982d Mon Sep 17 00:00:00 2001 From: "Fabio M. De Francesco" Date: Mon, 4 Jul 2022 16:01:29 +0200 Subject: [PATCH] ixgbe: Don't call kmap() on page allocated with GFP_ATOMIC Pages allocated with GFP_ATOMIC cannot come from Highmem. This is why there is no need to call kmap() on them. Therefore, don't call kmap() on rx_buffer->page() and instead use a plain page_address() to get the kernel address. Suggested-by: Ira Weiny Suggested-by: Alexander Duyck Signed-off-by: Fabio M. De Francesco Reviewed-by: Ira Weiny Reviewed-by: Alexander Duyck Tested-by: Gurucharan (A Contingent worker at Intel) Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 04f453eabef64e..cb5c707538a540 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -1964,15 +1964,13 @@ static bool ixgbe_check_lbtest_frame(struct ixgbe_rx_buffer *rx_buffer, frame_size >>= 1; - data = kmap(rx_buffer->page) + rx_buffer->page_offset; + data = page_address(rx_buffer->page) + rx_buffer->page_offset; if (data[3] != 0xFF || data[frame_size + 10] != 0xBE || data[frame_size + 12] != 0xAF) match = false; - kunmap(rx_buffer->page); - return match; }