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drivers: Add conftest test for class_create

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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
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6
drivers/virt/tegra/tegra_hv.c
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@@ -3,6 +3,8 @@
* Copyright (c) 2022-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
*/
#include <nvidia/conftest.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
@@ -421,7 +423,11 @@ static int tegra_hv_setup(struct tegra_hv_data *hvd)
return -ENODEV;
}
#if defined(NV_CLASS_CREATE_HAS_NO_OWNER_ARG) /* Linux v6.4 */
hvd->hv_class = class_create("tegra_hv");
#else
hvd->hv_class = class_create(THIS_MODULE, "tegra_hv");
#endif
if (IS_ERR(hvd->hv_class)) {
ERR("class_create() failed\n");
return PTR_ERR(hvd->hv_class);