This is a note to let you know that I've just added the patch titled crypto: qat - fix invalid pf2vf_resp_wq logic to the 4.5-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: crypto-qat-fix-invalid-pf2vf_resp_wq-logic.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 9e209fcfb804da262e38e5cd2e680c47a41f0f95 Mon Sep 17 00:00:00 2001 From: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> Date: Mon, 25 Apr 2016 07:32:19 -0700 Subject: crypto: qat - fix invalid pf2vf_resp_wq logic From: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> commit 9e209fcfb804da262e38e5cd2e680c47a41f0f95 upstream. The pf2vf_resp_wq is a global so it has to be created at init and destroyed at exit, instead of per device. Tested-by: Suresh Marikkannu <sureshx.marikkannu@xxxxxxxxx> Signed-off-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/crypto/qat/qat_common/adf_common_drv.h | 2 + drivers/crypto/qat/qat_common/adf_ctl_drv.c | 6 +++++ drivers/crypto/qat/qat_common/adf_sriov.c | 26 +++++++++++++++---------- 3 files changed, 24 insertions(+), 10 deletions(-) --- a/drivers/crypto/qat/qat_common/adf_common_drv.h +++ b/drivers/crypto/qat/qat_common/adf_common_drv.h @@ -144,6 +144,8 @@ void adf_disable_aer(struct adf_accel_de void adf_dev_restore(struct adf_accel_dev *accel_dev); int adf_init_aer(void); void adf_exit_aer(void); +int adf_init_pf_wq(void); +void adf_exit_pf_wq(void); int adf_init_admin_comms(struct adf_accel_dev *accel_dev); void adf_exit_admin_comms(struct adf_accel_dev *accel_dev); int adf_send_admin_init(struct adf_accel_dev *accel_dev); --- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c +++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c @@ -462,12 +462,17 @@ static int __init adf_register_ctl_devic if (adf_init_aer()) goto err_aer; + if (adf_init_pf_wq()) + goto err_pf_wq; + if (qat_crypto_register()) goto err_crypto_register; return 0; err_crypto_register: + adf_exit_pf_wq(); +err_pf_wq: adf_exit_aer(); err_aer: adf_chr_drv_destroy(); @@ -480,6 +485,7 @@ static void __exit adf_unregister_ctl_de { adf_chr_drv_destroy(); adf_exit_aer(); + adf_exit_pf_wq(); qat_crypto_unregister(); adf_clean_vf_map(false); mutex_destroy(&adf_ctl_lock); --- a/drivers/crypto/qat/qat_common/adf_sriov.c +++ b/drivers/crypto/qat/qat_common/adf_sriov.c @@ -119,11 +119,6 @@ static int adf_enable_sriov(struct adf_a int i; u32 reg; - /* Workqueue for PF2VF responses */ - pf2vf_resp_wq = create_workqueue("qat_pf2vf_resp_wq"); - if (!pf2vf_resp_wq) - return -ENOMEM; - for (i = 0, vf_info = accel_dev->pf.vf_info; i < totalvfs; i++, vf_info++) { /* This ptr will be populated when VFs will be created */ @@ -216,11 +211,6 @@ void adf_disable_sriov(struct adf_accel_ kfree(accel_dev->pf.vf_info); accel_dev->pf.vf_info = NULL; - - if (pf2vf_resp_wq) { - destroy_workqueue(pf2vf_resp_wq); - pf2vf_resp_wq = NULL; - } } EXPORT_SYMBOL_GPL(adf_disable_sriov); @@ -304,3 +294,19 @@ int adf_sriov_configure(struct pci_dev * return numvfs; } EXPORT_SYMBOL_GPL(adf_sriov_configure); + +int __init adf_init_pf_wq(void) +{ + /* Workqueue for PF2VF responses */ + pf2vf_resp_wq = create_workqueue("qat_pf2vf_resp_wq"); + + return !pf2vf_resp_wq ? -ENOMEM : 0; +} + +void adf_exit_pf_wq(void) +{ + if (pf2vf_resp_wq) { + destroy_workqueue(pf2vf_resp_wq); + pf2vf_resp_wq = NULL; + } +} Patches currently in stable-queue which might be from tadeusz.struk@xxxxxxxxx are queue-4.5/crypto-qat-fix-adf_ctl_drv.c-undefined-reference-to-adf_init_pf_wq.patch queue-4.5/crypto-qat-fix-invalid-pf2vf_resp_wq-logic.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html