-
由 Weili Qian 提交于
Call trace will appear in the Hisilicon crypto driver unbinding or disabling SRIOV during task running with TFMs on the corresponding function. The log looks like this: [ 293.908078] Call trace: [ 293.908080] __queue_work+0x494/0x548 [ 293.908081] queue_work_on+0x84/0xd8 [ 293.908092] qm_irq+0x4c/0xd0 [hisi_qm] [ 293.908096] __handle_irq_event_percpu+0x74/0x2a0 [ 293.908098] handle_irq_event_percpu+0x40/0x98 [ 293.908099] handle_irq_event+0x4c/0x80 [ 293.908101] handle_fasteoi_irq+0xb0/0x170 [ 293.908102] generic_handle_irq+0x3c/0x58 [ 293.908103] __handle_domain_irq+0x68/0xc0 [ 293.908104] gic_handle_irq+0xb4/0x298 [ 293.908105] el1_irq+0xcc/0x180 [ 293.908107] arch_cpu_idle+0x38/0x228 [ 293.908110] default_idle_call+0x20/0x40 [ 293.908113] do_idle+0x1cc/0x2b8 [ 293.908114] cpu_startup_entry+0x2c/0x30 [ 293.908115] rest_init+0xdc/0xe8 [ 293.908117] arch_call_rest_init+0x14/0x1c [ 293.908117] start_kernel+0x490/0x4c4 This patch adds a waiting logic as user doing the above two operations to avoid panic. The two operations will hold on in the driver remove function until the tasks release all their relative TFMs. Signed-off-by: NHui Tang <tanghui20@huawei.com> Signed-off-by: NWeili Qian <qianweili@huawei.com> Signed-off-by: NYang Shen <shenyang39@huawei.com> Reviewed-by: NZhou Wang <wangzhou1@hisilicon.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
daa31783