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In the function ravb_hwtstamp_get() in ravb_main.c with the existing
values for RAVB_RXTSTAMP_TYPE_V2_L2_EVENT (0x2) and RAVB_RXTSTAMP_TYPE_ALL
(0x6)
if (priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE_V2_L2_EVENT)
config.rx_filter = HWTSTAMP_FILTER_PTP_V2_L2_EVENT;
else if (priv->tstamp_rx_ctrl & RAVB_RXTSTAMP_TYPE_ALL)
config.rx_filter = HWTSTAMP_FILTER_ALL;
if the test on RAVB_RXTSTAMP_TYPE_ALL should be true,
it will never be reached.
This issue can be verified with 'hwtstamp_config' testing program
(tools/testing/selftests/net/hwtstamp_config.c). Setting filter type
to ALL and subsequent retrieving it gives incorrect value:
$ hwtstamp_config eth0 OFF ALL
flags = 0
tx_type = OFF
rx_filter = ALL
$ hwtstamp_config eth0
flags = 0
tx_type = OFF
rx_filter = PTP_V2_L2_EVENT
Correct this by converting if-else's to switch.
Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper")
Reported-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Link: https://lore.kernel.org/r/20201026102130.29368-1-andrew_gabbasov@mentor.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
68b9f0865b