[Intel-wired-lan] [PATCH v3] intel: igb: igb_ethtool.c: Convert kmap() to kmap_local_page()
Alaa Mohamed
eng.alaamohamedsoliman.am at gmail.com
Sat Apr 16 11:14:57 UTC 2022
Convert kmap() to kmap_local_page()
With kmap_local_page(), the mapping is per thread, CPU local and not
globally visible.
Signed-off-by: Alaa Mohamed <eng.alaamohamedsoliman.am at gmail.com>
---
changes in V2:
fix kunmap_local path value to take address of the mapped page.
---
changes in V3:
edit commit message to be clearer
---
drivers/net/ethernet/intel/igb/igb_ethtool.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 2a5782063f4c..c14fc871dd41 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -1798,14 +1798,14 @@ static int igb_check_lbtest_frame(struct igb_rx_buffer *rx_buffer,
frame_size >>= 1;
- data = kmap(rx_buffer->page);
+ data = kmap_local_page(rx_buffer->page);
if (data[3] != 0xFF ||
data[frame_size + 10] != 0xBE ||
data[frame_size + 12] != 0xAF)
match = false;
- kunmap(rx_buffer->page);
+ kunmap_local(data);
return match;
}
--
2.35.2
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