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ixgbe: Don't call kmap() on page allocated with GFP_ATOMIC

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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 <ira.weiny@intel.com>
Suggested-by: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Fabio M. De Francesco 2022-07-04 16:01:29 +02:00 committed by Tony Nguyen
parent e34cfee65e
commit 03f51719df
1 changed files with 1 additions and 3 deletions
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4
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
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@ -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;
}