drivers: Add conftest test for class_create

In Linux v6.4, the module pointer argument is removed from the
class_create() function. Add a test to the conftest script that checks
if this argument for the class_create() function has been removed and
use the definition created by conftest to select which version of the
function is used.

Bug 4183168
Bug 4221847

Change-Id: I440e4b318001886cd0319bb3499ba33178475e8c
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2989020
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Jon Hunter
2023-10-02 10:56:59 +01:00
committed by mobile promotions
parent 86dafc35bb
commit ce678a37b1
21 changed files with 100 additions and 33 deletions

View File

@@ -3,6 +3,8 @@
#define pr_fmt(fmt) "%s:%s(): " fmt, KBUILD_MODNAME, __func__
#include <nvidia/conftest.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kdev_t.h>
@@ -368,7 +370,7 @@ static int tegra_hv_vcpu_yield_probe(struct platform_device *pdev)
}
major = MAJOR(vcpu_yield_pdev->vcpu_yield_dev);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 4, 0)
#if defined(NV_CLASS_CREATE_HAS_NO_OWNER_ARG) /* Linux v6.4 */
vcpu_yield_class =
class_create("tegra_hv_vcpu_yield");
#else