linux-kernel - [PATCH 5.10 445/663] ice: report correct max number of TCs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon,  1 Mar 2021 17:11:33 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dave Ertman <david.m.ertman@...el.com>,
        Tony Brelinski <tonyx.brelinski@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 445/663] ice: report correct max number of TCs

From: Dave Ertman <david.m.ertman@...el.com>

[ Upstream commit 7dcf7aa01c7b9f18727cbe0f9cb4136f1c6cdcc2 ]

In the driver currently, we are reporting max number of TCs
to the DCBNL callback as a kernel define set to 8.  This is
preventing userspace applications performing DCBx to correctly
down map the TCs from requested to actual values.

Report the actual max TC value to userspace from the capability
struct.

Fixes: b94b013eb626 ("ice: Implement DCBNL support")
Signed-off-by: Dave Ertman <david.m.ertman@...el.com>
Tested-by: Tony Brelinski <tonyx.brelinski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/intel/ice/ice_dcb_nl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c
index 87f91b750d59a..842d44b63480f 100644
--- a/drivers/net/ethernet/intel/ice/ice_dcb_nl.c
+++ b/drivers/net/ethernet/intel/ice/ice_dcb_nl.c
@@ -136,7 +136,7 @@ ice_dcbnl_getnumtcs(struct net_device *dev, int __always_unused tcid, u8 *num)
 	if (!test_bit(ICE_FLAG_DCB_CAPABLE, pf->flags))
 		return -EINVAL;
 
-	*num = IEEE_8021QAZ_MAX_TCS;
+	*num = pf->hw.func_caps.common_cap.maxtc;
 	return 0;
 }
 
-- 
2.27.0