misc: mods: fix compilation with k5.4

Clean up configuration in mods_config.h and make mods_config.h identical to the official copy in Perforce. Bug 200587200 Change-Id: I035119eb44025f45d8272729ebc5a918dd8da6fe Signed-off-by: Chris Dragan <kdragan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2302436 Reviewed-by: Sachin Nikam <snikam@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2025-12-22 17:25:35 +03:00 · 2020-02-26 04:17:32 -08:00
parent b5b2def304
commit a85680cbc5
17 changed files with 104 additions and 74 deletions
--- a/drivers/misc/mods/Makefile
+++ b/drivers/misc/mods/Makefile
@@ -2,12 +2,12 @@ obj-$(CONFIG_MODS)                 := mods.o
 mods-y                             := mods_krnl.o
 mods-y                             += mods_mem.o
 mods-y                             += mods_irq.o
-mods-y                             += mods_clock.o
+mods-$(CONFIG_COMMON_CLK)          += mods_clock.o
 mods-$(CONFIG_ARCH_TEGRA)          += mods_tegraprod.o
 mods-$(CONFIG_ARCH_TEGRA_19x_SOC)  += mods_ras.o
 mods-$(CONFIG_PCI)                 += mods_pci.o
 mods-$(CONFIG_ACPI)                += mods_acpi.o
-mods-$(CONFIG_ARCH_TEGRA)	   += mods_dmabuf.o
+mods-$(CONFIG_DMA_SHARED_BUFFER)   += mods_dmabuf.o
 mods-$(CONFIG_DMA_ENGINE)          += mods_dma.o
 mods-$(CONFIG_DEBUG_FS)            += mods_debugfs.o
 mods-$(CONFIG_TEGRA_DC)            += mods_tegradc.o
--- a/drivers/misc/mods/mods.dts
+++ b/drivers/misc/mods/mods.dts
@@ -1,7 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods.dts - This file is part of NVIDIA MODS kernel driver.
 *
- * Copyright (c) 2015-2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2020, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA MODS kernel driver is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License,
--- a/drivers/misc/mods/mods_adsp.c
+++ b/drivers/misc/mods/mods_adsp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods_adsp.c - This file is part of NVIDIA MODS kernel driver.
 *
--- a/drivers/misc/mods/mods_clock.c
+++ b/drivers/misc/mods/mods_clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods_clock.c - This file is part of NVIDIA MODS kernel driver.
 *
--- a/drivers/misc/mods/mods_config.h
+++ b/drivers/misc/mods/mods_config.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
 * mods_config.h - This file is part of NVIDIA MODS kernel driver.
 *
- * Copyright (c) 2008-2018, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2008-2020, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA MODS kernel driver is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License,
@@ -20,45 +21,66 @@
 #ifndef _MODS_CONFIG_H_
 #define _MODS_CONFIG_H_

-#define MODS_KERNEL_VERSION KERNEL_VERSION(4, 4, 0)
+#define MODS_KERNEL_VERSION LINUX_VERSION_CODE

-#define MODS_IRQ_HANDLE_NO_REGS 1
-#define MODS_HAS_SET_MEMORY 1
-#define MODS_ACPI_DEVID_64 1
-#define MODS_HAS_WC 1
-#define MODS_HAS_DEV_TO_NUMA_NODE 1
-#define MODS_HAS_NEW_ACPI_WALK 1
-#ifdef CONFIG_DEBUG_FS
-#define MODS_HAS_DEBUGFS 1
+#if KERNEL_VERSION(2, 6, 30) <= MODS_KERNEL_VERSION
+#       define MODS_HAS_DMA_OPS 1
+#else
+#       define MODS_HASNT_PCI_RESCAN_BUS 1
 #endif
-#if defined(CONFIG_TEGRA_KFUSE)
-#define MODS_HAS_KFUSE 1
+
+#if KERNEL_VERSION(2, 6, 31) <= MODS_KERNEL_VERSION
+#       define MODS_HAS_IORESOURCE_MEM_64 1
 #endif
-#ifdef CONFIG_DMA_SHARED_BUFFER
-#define MODS_HAS_DMABUF 1
+
+#if KERNEL_VERSION(2, 6, 33) <= MODS_KERNEL_VERSION
+#       define MODS_HAS_NEW_ACPI_WALK 1
+#else
+#       define MODS_HASNT_NUMA_NO_NODE 1
 #endif
-#define MODS_MULTI_INSTANCE_DEFAULT_VALUE 1
-#define MODS_HAS_IORESOURCE_MEM_64 1
-#undef MODS_HAS_NEW_ACPI_HANDLE /* new in 3.13 */
-#if defined(CONFIG_ARCH_TEGRA)
-#define MODS_TEGRA 1
+
+#if KERNEL_VERSION(2, 6, 38) <= MODS_KERNEL_VERSION
+#       if defined(CONFIG_X86)
+#               define MODS_HAS_CONSOLE_LOCK 1
+#       endif
 #endif
-#if defined(CONFIG_COMMON_CLK) && defined(CONFIG_OF_RESOLVE) && \
-	defined(CONFIG_OF_DYNAMIC)
-#define MODS_HAS_CLOCK 1
+
+#if KERNEL_VERSION(3, 4, 0) > MODS_KERNEL_VERSION
+#       define MODS_HASNT_PCI_BUS_REMOVE_DEV 1
 #endif
-#ifdef CONFIG_NET
-#define MODS_HAS_NET 1
+
+#if KERNEL_VERSION(3, 8, 0) <= MODS_KERNEL_VERSION
+#       define MODS_HAS_NEW_ACPI_HANDLE 1
+#       define MODS_HAS_SRIOV 1
 #endif
-#ifdef CONFIG_ZONE_DMA32
-#define MODS_HAS_DMA32	1
+
+#if KERNEL_VERSION(3, 14, 0) <= MODS_KERNEL_VERSION
+#       define MODS_HAS_MSIX_RANGE 1
+#else
+#       define MODS_HASNT_PCI_LOCK_RESCAN_REMOVE 1
 #endif
-#ifdef CONFIG_PCI
-#define MODS_CAN_REGISTER_PCI_DEV 1
+
+#if defined(CONFIG_ARM64) && \
+		KERNEL_VERSION(3, 15, 0) <= MODS_KERNEL_VERSION && \
+		KERNEL_VERSION(4, 14, 0) > MODS_KERNEL_VERSION
+#       define MODS_HAS_NONCOH_DMA_OPS 1
+#endif
+
+#if KERNEL_VERSION(3, 16, 0) <= MODS_KERNEL_VERSION && \
+		defined(CONFIG_VT_HW_CONSOLE_BINDING)
+#       define MODS_HAS_CONSOLE_BINDING 1
+#endif
+
+#if defined(CONFIG_PPC64) && KERNEL_VERSION(4, 5, 0) <= MODS_KERNEL_VERSION
+#       define MODS_HAS_PNV_PCI_GET_NPU_DEV 1
+#endif
+
+#if KERNEL_VERSION(4, 12, 0) <= MODS_KERNEL_VERSION && !defined(CONFIG_PPC64)
+#       define MODS_HAS_SET_MEMORY_HEADER 1
+#endif
+
+#if KERNEL_VERSION(4, 16, 0) > MODS_KERNEL_VERSION && defined(CONFIG_X86)
+#       define MODS_HAS_MAP_SG_ATTRS
 #endif
-#define MODS_HAS_MSIX_RANGE 1
-#define MODS_HAS_SRIOV 1

 #endif /* _MODS_CONFIG_H_  */
-
-/* vim: set ts=8 sw=8 noet: */
--- a/drivers/misc/mods/mods_debugfs.c
+++ b/drivers/misc/mods/mods_debugfs.c
@@ -2,7 +2,7 @@
 /*
 * mods_debugfs.c - This file is part of NVIDIA MODS kernel driver.
 *
- * Copyright (c) 2014-2019, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2020, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA MODS kernel driver is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License,
@@ -33,7 +33,7 @@ static struct dentry *mods_debugfs_dir;
 #include "mods_ras.h"
 #endif

-#if defined(MODS_TEGRA) && defined(MODS_HAS_KFUSE)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_TEGRA_KFUSE)
 #include <soc/tegra/kfuse.h>
 #endif

@@ -423,7 +423,7 @@ static const struct file_operations mods_dc_crc_latched_fops = {
 };
 #endif /* CONFIG_TEGRA_DC */

-#if defined(MODS_TEGRA) && defined(MODS_HAS_KFUSE)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_TEGRA_KFUSE)
 static int mods_kfuse_show(struct seq_file *s, void *unused)
 {
 	unsigned int buf[KFUSE_DATA_SZ / 4];
@@ -453,7 +453,7 @@ static const struct file_operations mods_kfuse_fops = {
 	.llseek		= seq_lseek,
 	.release	= single_release,
 };
-#endif /* MODS_TEGRA */
+#endif /* CONFIG_ARCH_TEGRA */

 static int mods_debug_get(void *data, u64 *val)
 {
@@ -521,7 +521,6 @@ void mods_remove_debugfs(void)

 int mods_create_debugfs(struct miscdevice *modsdev)
 {
-#ifdef MODS_HAS_DEBUGFS
 #ifdef CONFIG_ARCH_TEGRA_19x_SOC
 	struct dentry *ras_debugfs_entry;
 #endif
@@ -618,7 +617,7 @@ int mods_create_debugfs(struct miscdevice *modsdev)
 		goto remove_out;
 	}

-#if defined(MODS_TEGRA) && defined(MODS_HAS_KFUSE)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_TEGRA_KFUSE)
 	retval = debugfs_create_file("kfuse_data", 0444,
 		mods_debugfs_dir, 0, &mods_kfuse_fops);
 	if (IS_ERR(retval)) {
@@ -764,8 +763,4 @@ remove_out:
 	dev_err(modsdev->this_device, "could not create debugfs\n");
 	mods_remove_debugfs();
 	return err;
-#else
-	return 0;
-#endif
 }
-
--- a/drivers/misc/mods/mods_dma.c
+++ b/drivers/misc/mods/mods_dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods_dma.c - This file is part of NVIDIA MODS kernel driver.
 *
--- a/drivers/misc/mods/mods_dmabuf.c
+++ b/drivers/misc/mods/mods_dmabuf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods_dmabuf.c - This file is part of NVIDIA MODS kernel driver.
 *
@@ -17,11 +18,6 @@
 * If not, see <http://www.gnu.org/licenses/>.
 */

-#include <linux/version.h>
-#include "mods_config.h"
-
-#ifdef MODS_HAS_DMABUF
-
 #include <linux/dma-buf.h>
 #include <linux/module.h>
 #include <linux/dma-mapping.h>
@@ -162,5 +158,3 @@ void mods_exit_dmabuf(void)
 {
 	platform_driver_unregister(&mods_dummy_driver);
 }
-
-#endif
--- a/drivers/misc/mods/mods_internal.h
+++ b/drivers/misc/mods/mods_internal.h
@@ -409,7 +409,8 @@ int mods_find_pci_dev(struct mods_client    *client,
 #endif

 /* clock */
-#ifdef MODS_TEGRA
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_COMMON_CLK) && \
+		defined(CONFIG_OF_RESOLVE) && defined(CONFIG_OF_DYNAMIC)
 void mods_init_clock_api(void);
 void mods_shutdown_clock_api(void);
 #endif
@@ -525,7 +526,7 @@ int esc_mods_pci_set_dma_mask(struct mods_client      *client,
 			     struct MODS_PCI_DMA_MASK *dma_mask);
 #endif
 /* irq */
-#if defined(MODS_TEGRA) && defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
 int esc_mods_map_irq(struct mods_client *client, struct MODS_DT_INFO *p);
 int esc_mods_map_irq_to_gpio(struct mods_client *client,
 						struct MODS_GPIO_INFO *p);
@@ -553,7 +554,7 @@ int esc_mods_register_irq_4(struct mods_client         *client,
 int esc_mods_query_irq_3(struct mods_client      *client,
 			 struct MODS_QUERY_IRQ_3 *p);

-#ifdef MODS_TEGRA
+#ifdef CONFIG_ARCH_TEGRA

 /* clock */
 int esc_mods_get_clock_handle(struct mods_client           *client,
@@ -608,12 +609,12 @@ int esc_mods_tegra_dc_config_possible(struct mods_client *client,
 				      struct MODS_TEGRA_DC_CONFIG_POSSIBLE *p);
 #endif

-#ifdef MODS_HAS_NET
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_NET)
 int esc_mods_net_force_link(struct mods_client          *client,
 			    struct MODS_NET_DEVICE_NAME *p);
 #endif

-#ifdef MODS_HAS_DMABUF
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_DMA_SHARED_BUFFER)
 int esc_mods_dmabuf_get_phys_addr(struct mods_client *client,
 				  struct MODS_DMABUF_GET_PHYSICAL_ADDRESS *p);
 #else
@@ -658,7 +659,7 @@ static inline int mods_create_debugfs(struct miscdevice *modsdev)
 static inline void mods_remove_debugfs(void) {}
 #endif /* CONFIG_DEBUG_FS */

-#if defined(MODS_TEGRA) && defined(MODS_HAS_DMABUF)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_DMA_SHARED_BUFFER)
 int mods_init_dmabuf(void);
 void mods_exit_dmabuf(void);
 #else
--- a/drivers/misc/mods/mods_irq.c
+++ b/drivers/misc/mods/mods_irq.c
@@ -24,7 +24,7 @@
 #include <linux/poll.h>
 #include <linux/interrupt.h>
 #include <linux/pci_regs.h>
-#if defined(MODS_TEGRA) && defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/io.h>
@@ -1484,7 +1484,7 @@ int esc_mods_irq_handled(struct mods_client       *client,
 	return esc_mods_irq_handled_2(client, &register_irq);
 }

-#if defined(MODS_TEGRA) && defined(CONFIG_OF_IRQ) && defined(CONFIG_OF)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_OF_IRQ) && defined(CONFIG_OF)
 int esc_mods_map_irq(struct mods_client  *client,
 		     struct MODS_DT_INFO *p)
 {
--- a/drivers/misc/mods/mods_krnl.c
+++ b/drivers/misc/mods/mods_krnl.c
@@ -136,6 +136,12 @@ struct pci_driver mods_pci_driver = {
 * used to avoid globalization of variables    *
 ***********************************************/

+#ifdef CONFIG_ARCH_TEGRA
+#       define MODS_MULTI_INSTANCE_DEFAULT_VALUE 1
+#else
+#       define MODS_MULTI_INSTANCE_DEFAULT_VALUE 0
+#endif
+
 static int debug;
 static int multi_instance = MODS_MULTI_INSTANCE_DEFAULT_VALUE;
 static u32 access_token = MODS_ACCESS_TOKEN_NONE;
@@ -440,7 +446,8 @@ static int __init mods_init_module(void)
 		return -EBUSY;
 #endif

-#if defined(MODS_HAS_CLOCK)
+#if defined(CONFIG_COMMON_CLK) && defined(CONFIG_OF_RESOLVE) && \
+		defined(CONFIG_OF_DYNAMIC)
 	mods_init_clock_api();
 #endif

@@ -452,7 +459,7 @@ static int __init mods_init_module(void)
 	if (rc < 0)
 		return rc;

-#if defined(MODS_TEGRA)
+#if defined(CONFIG_ARCH_TEGRA)
 	/* tegra prod */
 	mods_tegra_prod_init(&mods_dev);
 #endif
@@ -485,7 +492,8 @@ static void __exit mods_exit_module(void)

 	misc_deregister(&mods_dev);

-#if defined(MODS_HAS_CLOCK)
+#if defined(CONFIG_COMMON_CLK) && defined(CONFIG_OF_RESOLVE) && \
+		defined(CONFIG_OF_DYNAMIC)
 	mods_shutdown_clock_api();
 #endif

@@ -1954,7 +1962,7 @@ static long mods_krnl_ioctl(struct file  *fp,
 		err = -EINVAL;
 		break;

-#if defined(MODS_TEGRA) && defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
 	case MODS_ESC_MAP_INTERRUPT:
 		MODS_IOCTL(MODS_ESC_MAP_INTERRUPT,
 				esc_mods_map_irq, MODS_DT_INFO);
@@ -2073,7 +2081,8 @@ static long mods_krnl_ioctl(struct file  *fp,
 			   esc_mods_get_kernel_version, MODS_GET_VERSION);
 		break;

-#if defined(MODS_HAS_CLOCK)
+#if defined(CONFIG_COMMON_CLK) && defined(CONFIG_OF_RESOLVE) && \
+		defined(CONFIG_OF_DYNAMIC)
 	case MODS_ESC_GET_CLOCK_HANDLE:
 		MODS_IOCTL(MODS_ESC_GET_CLOCK_HANDLE,
 			   esc_mods_get_clock_handle, MODS_GET_CLOCK_HANDLE);
@@ -2138,7 +2147,7 @@ static long mods_krnl_ioctl(struct file  *fp,
 				    MODS_CLOCK_HANDLE);
 		break;
 #endif
-#if defined(MODS_TEGRA)
+#if defined(CONFIG_ARCH_TEGRA)
 	case MODS_ESC_FLUSH_CPU_CACHE_RANGE:
 		MODS_IOCTL_NORETVAL(MODS_ESC_FLUSH_CPU_CACHE_RANGE,
 				    esc_mods_flush_cpu_cache_range,
@@ -2198,7 +2207,7 @@ static long mods_krnl_ioctl(struct file  *fp,
 				   MODS_TEGRA_DC_CONFIG_POSSIBLE);
 		break;
 #endif
-#ifdef MODS_HAS_NET
+#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_NET)
 	case MODS_ESC_NET_FORCE_LINK:
 		MODS_IOCTL(MODS_ESC_NET_FORCE_LINK,
 			   esc_mods_net_force_link, MODS_NET_DEVICE_NAME);
@@ -2210,7 +2219,7 @@ static long mods_krnl_ioctl(struct file  *fp,
 				esc_mods_memory_barrier);
 		break;

-#ifdef MODS_TEGRA
+#ifdef CONFIG_ARCH_TEGRA
 	case MODS_ESC_DMABUF_GET_PHYSICAL_ADDRESS:
 		MODS_IOCTL(MODS_ESC_DMABUF_GET_PHYSICAL_ADDRESS,
 			   esc_mods_dmabuf_get_phys_addr,
@@ -2264,7 +2273,7 @@ static long mods_krnl_ioctl(struct file  *fp,
 			   esc_mods_resume_console);
 		break;

-#if defined(MODS_TEGRA)
+#if defined(CONFIG_ARCH_TEGRA)
 	case MODS_ESC_TEGRA_PROD_IS_SUPPORTED:
 		MODS_IOCTL(MODS_ESC_TEGRA_PROD_IS_SUPPORTED,
 			   esc_mods_tegra_prod_is_supported,
--- a/drivers/misc/mods/mods_mem.c
+++ b/drivers/misc/mods/mods_mem.c
@@ -381,7 +381,7 @@ static struct MODS_DMA_MAP *find_dma_map(struct MODS_MEM_INFO  *p_mem_info,
 	return NULL;
 }

-#if !defined(MODS_TEGRA) || defined(CONFIG_CPA)
+#if !defined(CONFIG_ARCH_TEGRA) || defined(CONFIG_CPA)
 static int mods_set_mem_type(u64 virt_addr, u64 pages, u8 type)
 {
 	if (type == MODS_ALLOC_UNCACHED)
@@ -2059,7 +2059,7 @@ int esc_mods_dma_unmap_memory(struct mods_client         *client,
 }
 #endif

-#ifdef MODS_TEGRA
+#ifdef CONFIG_ARCH_TEGRA

 static void clear_contiguous_cache(struct mods_client *client,
 				   u64                 virt_start,
@@ -2236,7 +2236,7 @@ static int mods_post_alloc(struct mods_client     *client,
 				cl_error("kmap failed\n");
 				return -EINVAL;
 			}
-#if defined(MODS_TEGRA) && !defined(CONFIG_CPA)
+#if defined(CONFIG_ARCH_TEGRA) && !defined(CONFIG_CPA)
 			clear_contiguous_cache(client,
 					       ptr,
 					       phys_addr + (i << PAGE_SHIFT),
--- a/drivers/misc/mods/mods_netdevice.c
+++ b/drivers/misc/mods/mods_netdevice.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods_net.c - This file is part of NVIDIA MODS kernel driver.
 *
--- a/drivers/misc/mods/mods_ras.c
+++ b/drivers/misc/mods/mods_ras.c
@@ -1,5 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2017-2019, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2020, NVIDIA CORPORATION.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
--- a/drivers/misc/mods/mods_ras.h
+++ b/drivers/misc/mods/mods_ras.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
 * mods_ras.h - This file is part of NVIDIA MODS kernel driver.
 *
- * Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA MODS kernel driver is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License,
--- a/drivers/misc/mods/mods_tegradc.c
+++ b/drivers/misc/mods/mods_tegradc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods_tegradc.c - This file is part of NVIDIA MODS kernel driver.
 *
--- a/drivers/misc/mods/mods_tegraprod.c
+++ b/drivers/misc/mods/mods_tegraprod.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * mods_tegraprod.c - This file is part of NVIDIA MODS kernel driver.
 *