mainline inclusion
from mainline-5.10.62
commit 58b3dbf10c01ee076504a203ae93c43d46accf15
bugzilla: 182217 https://gitee.com/openeuler/kernel/issues/I4EFOS

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=58b3dbf10c01ee076504a203ae93c43d46accf15

--------------------------------

[ Upstream commit 691bd4d7 ]

Use num_tx_queues rather than the IGC_MAX_TX_QUEUES fixed number 4 when
iterating over tx_ring queue since instantiated queue count could be
less than 4 where on-line cpu count is less than 4.

Fixes: ec50a9d4 ("igc: Add support for taprio offloading")
Signed-off-by: NToshiki Nishioka <toshiki.nishioka@intel.com>
Signed-off-by: NMuhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Tested-by: NMuhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Acked-by: NSasha Neftin <sasha.neftin@intel.com>
Signed-off-by: NTony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>