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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2025 04:57:42.8835 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ee8541e8-38e2-40b8-276c-08dde1386da1 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023CE.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7995 Content-Type: text/plain; charset="utf-8" Remove redundant mbox_controller_unregister() call as device_unregister() handles controller cleanup. Signed-off-by: Harini T --- drivers/mailbox/zynqmp-ipi-mailbox.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-= ipi-mailbox.c index 0c143beaafda..bdcc6937ee30 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -893,11 +893,8 @@ static void zynqmp_ipi_free_mboxes(struct zynqmp_ipi_p= data *pdata) i =3D pdata->num_mboxes; for (; i >=3D 0; i--) { ipi_mbox =3D &pdata->ipi_mboxes[i]; - if (ipi_mbox->dev.parent) { - mbox_controller_unregister(&ipi_mbox->mbox); - if (device_is_registered(&ipi_mbox->dev)) - device_unregister(&ipi_mbox->dev); - } + if (device_is_registered(&ipi_mbox->dev)) + device_unregister(&ipi_mbox->dev); } } =20 --=20 2.43.0 From nobody Sat Oct 4 00:31:20 2025 Received: from NAM10-BN7-obe.outbound.protection.outlook.com (mail-bn7nam10on2049.outbound.protection.outlook.com [40.107.92.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DC50A288C22 for ; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2025 04:57:44.3835 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 151183e5-5c87-4940-a919-08dde1386e9f X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ1PEPF000023CE.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4073 Content-Type: text/plain; charset="utf-8" Fix mailbox cleanup loop that accesses array out-of-bounds by starting at num_boxes instead of numb_boxes-1 for 0-indexed arrays. Signed-off-by: Harini T --- drivers/mailbox/zynqmp-ipi-mailbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-= ipi-mailbox.c index bdcc6937ee30..3b806d1f89bb 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -891,7 +891,7 @@ static void zynqmp_ipi_free_mboxes(struct zynqmp_ipi_pd= ata *pdata) xlnx_mbox_cleanup_sgi(pdata); =20 i =3D pdata->num_mboxes; - for (; i >=3D 0; i--) { + for (i--; i >=3D 0; i--) { ipi_mbox =3D &pdata->ipi_mboxes[i]; if (device_is_registered(&ipi_mbox->dev)) device_unregister(&ipi_mbox->dev); --=20 2.43.0 From nobody Sat Oct 4 00:31:20 2025 Received: from NAM02-SN1-obe.outbound.protection.outlook.com (mail-sn1nam02on2059.outbound.protection.outlook.com [40.107.96.59]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B087428AAE0 for ; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2025 04:57:45.8031 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cbf742d7-ac10-4e47-99a6-08dde1386f50 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF00006000.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4094 Content-Type: text/plain; charset="utf-8" The driver incorrectly determines SGI vs SPI interrupts by checking IRQ number < 16, which fails with dynamic IRQ allocation. During unbind, this causes improper SGI cleanup leading to kernel crash. Add explicit irq_type field to pdata for reliable identification of SGI interrupts (type-2) and only clean up SGI resources when appropriate. Signed-off-by: Harini T --- drivers/mailbox/zynqmp-ipi-mailbox.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-= ipi-mailbox.c index 3b806d1f89bb..1af758a406e2 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -62,7 +62,8 @@ #define DST_BIT_POS 9U #define SRC_BITMASK GENMASK(11, 8) =20 -#define MAX_SGI 16 +/* Macro to represent SGI type for IPI IRQs */ +#define IPI_IRQ_TYPE_SGI 2 =20 /* * Module parameters @@ -121,6 +122,7 @@ struct zynqmp_ipi_mbox { * @dev: device pointer corresponding to the Xilinx ZynqMP * IPI agent * @irq: IPI agent interrupt ID + * @irq_type: IPI SGI or SPI IRQ type * @method: IPI SMC or HVC is going to be used * @local_id: local IPI agent ID * @virq_sgi: IRQ number mapped to SGI @@ -130,6 +132,7 @@ struct zynqmp_ipi_mbox { struct zynqmp_ipi_pdata { struct device *dev; int irq; + unsigned int irq_type; unsigned int method; u32 local_id; int virq_sgi; @@ -887,7 +890,7 @@ static void zynqmp_ipi_free_mboxes(struct zynqmp_ipi_pd= ata *pdata) struct zynqmp_ipi_mbox *ipi_mbox; int i; =20 - if (pdata->irq < MAX_SGI) + if (pdata->irq_type =3D=3D IPI_IRQ_TYPE_SGI) xlnx_mbox_cleanup_sgi(pdata); =20 i =3D pdata->num_mboxes; @@ -956,14 +959,16 @@ static int zynqmp_ipi_probe(struct platform_device *p= dev) dev_err(dev, "failed to parse interrupts\n"); goto free_mbox_dev; } - ret =3D out_irq.args[1]; + + /* Use interrupt type to distinguish SGI and SPI interrupts */ + pdata->irq_type =3D out_irq.args[0]; =20 /* * If Interrupt number is in SGI range, then request SGI else request * IPI system IRQ. */ - if (ret < MAX_SGI) { - pdata->irq =3D ret; + if (pdata->irq_type =3D=3D IPI_IRQ_TYPE_SGI) { + pdata->irq =3D out_irq.args[1]; ret =3D xlnx_mbox_init_sgi(pdev, pdata->irq, pdata); if (ret) goto free_mbox_dev; --=20 2.43.0