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cc0e510cc8
The firmware stats fetch call that happens in ndo_get_stats64()
is currently not required, and causes a warning to issue.
The corresponding warn log for the PF is given below:
[ 123.316837] ------------[ cut here ]------------
[ 123.316840] Voluntary context switch within RCU read-side critical section!
[ 123.316917] pc : rcu_note_context_switch+0x2e4/0x300
[ 123.316919] lr : rcu_note_context_switch+0x2e4/0x300
[ 123.316947] Call trace:
[ 123.316949] rcu_note_context_switch+0x2e4/0x300
[ 123.316952] __schedule+0x84/0x584
[ 123.316955] schedule+0x38/0x90
[ 123.316956] schedule_timeout+0xa0/0x1d4
[ 123.316959] octep_send_mbox_req+0x190/0x230 [octeon_ep]
[ 123.316966] octep_ctrl_net_get_if_stats+0x78/0x100 [octeon_ep]
[ 123.316970] octep_get_stats64+0xd4/0xf0 [octeon_ep]
[ 123.316975] dev_get_stats+0x4c/0x114
[ 123.316977] dev_seq_printf_stats+0x3c/0x11c
[ 123.316980] dev_seq_show+0x1c/0x40
[ 123.316982] seq_read_iter+0x3cc/0x4e0
[ 123.316985] seq_read+0xc8/0x110
[ 123.316987] proc_reg_read+0x9c/0xec
[ 123.316990] vfs_read+0xc8/0x2ec
[ 123.316993] ksys_read+0x70/0x100
[ 123.316995] __arm64_sys_read+0x20/0x30
[ 123.316997] invoke_syscall.constprop.0+0x7c/0xd0
[ 123.317000] do_el0_svc+0xb4/0xd0
[ 123.317002] el0_svc+0xe8/0x1f4
[ 123.317005] el0t_64_sync_handler+0x134/0x150
[ 123.317006] el0t_64_sync+0x17c/0x180
[ 123.317008] ---[ end trace 63399811432ab69b ]---
Fixes:
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Linux kernel
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