[PATCH ethtool 2/8] cmis: Fix printing of channel-level flags

[Ido Schimmel <idosch@nvidia.com>]

CMIS encodes different channel-level flags (e.g., "Laser bias current
high alarm") in different bytes where each bit corresponds to the value
of the flag in a different channel. Since CMIS supports more than 8
channels, these flags can be banked (e.g., channels 1-8 in bank 0,
channels 9-16 in bank 1 etc.).

The code is currently applying the wrong bit mask (the channel number
itself) when extracting the per-channel flag. Fix the calculation of the
bit mask so that the channel offset (0-7) in the current bank determines
the number of bits that are shifted.

Fixes: 340d88ee1289 ("cmis: Parse and print diagnostic information")
Reviewed-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 cmis.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmis.c b/cmis.c
index a4bf455c2a77..16f168a3b1af 100644
--- a/cmis.c
+++ b/cmis.c
@@ -766,7 +766,7 @@ static void cmis_show_dom_chan_lvl_flag(const struct cmis_memory_map *map,
 		char str[80];
 		bool value;
 
-		value = page_11h[module_aw_chan_flags[flag].offset] & chan;
+		value = page_11h[module_aw_chan_flags[flag].offset] & (1 << i);
 		if (is_json_context()) {
 			print_bool(PRINT_JSON, NULL, NULL, value);
 		} else {
-- 
2.55.0