6.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michal Kubiak michal.kubiak@intel.com
commit 3cc88e8405b8d55e0ff035e31971aadd6baee2b6 upstream.
The initialization of vport interrupt consists of two functions: 1) idpf_vport_intr_init() where a generic configuration is done 2) idpf_vport_intr_req_irq() where the irq for each q_vector is requested.
The first function used to create a base name for each interrupt using "kasprintf()" call. Unfortunately, although that call allocated memory for a text buffer, that memory was never released.
Fix this by removing creating the interrupt base name in 1). Instead, always create a full interrupt name in the function 2), because there is no need to create a base name separately, considering that the function 2) is never called out of idpf_vport_intr_init() context.
Fixes: d4d558718266 ("idpf: initialize interrupts and enable vport") Cc: stable@vger.kernel.org # 6.7 Signed-off-by: Michal Kubiak michal.kubiak@intel.com Reviewed-by: Pavan Kumar Linga pavan.kumar.linga@intel.com Signed-off-by: Alexander Lobakin aleksander.lobakin@intel.com Reviewed-by: Simon Horman horms@kernel.org Tested-by: Krishneil Singh krishneil.k.singh@intel.com Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com Link: https://patch.msgid.link/20240806220923.3359860-3-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/idpf/idpf_txrx.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-)
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.c +++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.c @@ -3614,13 +3614,15 @@ void idpf_vport_intr_update_itr_ena_irq( /** * idpf_vport_intr_req_irq - get MSI-X vectors from the OS for the vport * @vport: main vport structure - * @basename: name for the vector */ -static int idpf_vport_intr_req_irq(struct idpf_vport *vport, char *basename) +static int idpf_vport_intr_req_irq(struct idpf_vport *vport) { struct idpf_adapter *adapter = vport->adapter; + const char *drv_name, *if_name, *vec_name; int vector, err, irq_num, vidx; - const char *vec_name; + + drv_name = dev_driver_string(&adapter->pdev->dev); + if_name = netdev_name(vport->netdev);
for (vector = 0; vector < vport->num_q_vectors; vector++) { struct idpf_q_vector *q_vector = &vport->q_vectors[vector]; @@ -3637,8 +3639,8 @@ static int idpf_vport_intr_req_irq(struc else continue;
- q_vector->name = kasprintf(GFP_KERNEL, "%s-%s-%d", - basename, vec_name, vidx); + q_vector->name = kasprintf(GFP_KERNEL, "%s-%s-%s-%d", drv_name, + if_name, vec_name, vidx);
err = request_irq(irq_num, idpf_vport_intr_clean_queues, 0, q_vector->name, q_vector); @@ -4148,7 +4150,6 @@ error: */ int idpf_vport_intr_init(struct idpf_vport *vport) { - char *int_name; int err;
err = idpf_vport_intr_init_vec_idx(vport); @@ -4162,11 +4163,7 @@ int idpf_vport_intr_init(struct idpf_vpo if (err) goto unroll_vectors_alloc;
- int_name = kasprintf(GFP_KERNEL, "%s-%s", - dev_driver_string(&vport->adapter->pdev->dev), - vport->netdev->name); - - err = idpf_vport_intr_req_irq(vport, int_name); + err = idpf_vport_intr_req_irq(vport); if (err) goto unroll_vectors_alloc;