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[ Upstream commitfe26566d8a] When TSO packet is transmitted additional BD w/o mapping is used to describe the packed. The BD needs special handling in tx completion. kernel: Call Trace: kernel: <IRQ> [<ffffffff815e19ba>] dump_stack+0x19/0x1b kernel: [<ffffffff8105dee1>] warn_slowpath_common+0x61/0x80 kernel: [<ffffffff8105df5c>] warn_slowpath_fmt+0x5c/0x80 kernel: [<ffffffff814a8c0d>] ? find_iova+0x4d/0x90 kernel: [<ffffffff814ab0e2>] intel_unmap_page.part.36+0x142/0x160 kernel: [<ffffffff814ad0e6>] intel_unmap_page+0x26/0x30 kernel: [<ffffffffa01f55d7>] bnx2x_free_tx_pkt+0x157/0x2b0 [bnx2x] kernel: [<ffffffffa01f8dac>] bnx2x_tx_int+0xac/0x220 [bnx2x] kernel: [<ffffffff8101a0d9>] ? read_tsc+0x9/0x20 kernel: [<ffffffffa01f8fdb>] bnx2x_poll+0xbb/0x3c0 [bnx2x] kernel: [<ffffffff814d041a>] net_rx_action+0x15a/0x250 kernel: [<ffffffff81067047>] __do_softirq+0xf7/0x290 kernel: [<ffffffff815f3a5c>] call_softirq+0x1c/0x30 kernel: [<ffffffff81014d25>] do_softirq+0x55/0x90 kernel: [<ffffffff810673e5>] irq_exit+0x115/0x120 kernel: [<ffffffff815f4358>] do_IRQ+0x58/0xf0 kernel: [<ffffffff815e94ad>] common_interrupt+0x6d/0x6d kernel: <EOI> [<ffffffff810bbff7>] ? clockevents_notify+0x127/0x140 kernel: [<ffffffff814834df>] ? cpuidle_enter_state+0x4f/0xc0 kernel: [<ffffffff81483615>] cpuidle_idle_call+0xc5/0x200 kernel: [<ffffffff8101bc7e>] arch_cpu_idle+0xe/0x30 kernel: [<ffffffff810b4725>] cpu_startup_entry+0xf5/0x290 kernel: [<ffffffff815cfee1>] start_secondary+0x265/0x27b kernel: ---[ end trace 11aa7726f18d7e80 ]--- Fixes:a848ade408("bnx2x: add CSUM and TSO support for encapsulation protocols") Reported-by: Yulong Pei <ypei@redhat.com> Cc: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>