gasket-driver/fix-kernel-gte-6.4.patch

44 lines
1.6 KiB
Diff

From 83cbe8264fc63511e4e6250f2426749951a340c8 Mon Sep 17 00:00:00 2001
From: Chris Bradbury <chris@binaryspanner.com>
Date: Fri, 14 Jul 2023 18:55:56 +0100
Subject: [PATCH] Amend use of `class_create()` for kernels >= 6.4
The function signature for `class_create()` was changed in kernels >= 6.4.x to only accept a single argument (see kernel commit #dcfbb67).
This change will conditionally modify how `class_create()` is called depending on the kernel version.
---
src/gasket_core.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/src/gasket_core.c b/src/gasket_core.c
index 139616b..b1c2726 100644
--- a/src/gasket_core.c
+++ b/src/gasket_core.c
@@ -27,6 +27,7 @@
#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/sched.h>
+#include <linux/version.h>
#ifdef GASKET_KERNEL_TRACE_SUPPORT
#define CREATE_TRACE_POINTS
@@ -1837,8 +1838,15 @@ int gasket_register_device(const struct gasket_driver_desc *driver_desc)
internal = &g_descs[desc_idx];
mutex_init(&internal->mutex);
memset(internal->devs, 0, sizeof(struct gasket_dev *) * GASKET_DEV_MAX);
- internal->class =
- class_create(driver_desc->module, driver_desc->name);
+
+ /* Function signature for `class_create()` is changed in kernel >= 6.4.x
+ * to only accept a single argument.
+ * */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
+ internal->class = class_create(driver_desc->module, driver_desc->name);
+#else
+ internal->class = class_create(driver_desc->name);
+#endif
if (IS_ERR(internal->class)) {
pr_err("Cannot register %s class [ret=%ld]\n",