[openwrt/openwrt] kernel: ltq-adsl-mei: fix compilation warning on 6.6

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/fda7563c9ae23c4f6d09057b8b2372e21e347c6d

commit fda7563c9ae23c4f6d09057b8b2372e21e347c6d
Author: Aleksander Jan Bajkowski <olek2 at wp.pl>
AuthorDate: Thu Jun 13 23:00:40 2024 +0200

    kernel: ltq-adsl-mei: fix compilation warning on 6.6
    
    Fix compilation warning:
    ./include/linux/export.h:29:22: error: passing argument 1 of 'class_create' from incompatible pointer type [-Werror=incompatible-pointer-types]
       29 | #define THIS_MODULE (&__this_module)
          |                     ~^~~~~~~~~~~~~~~
          |                      |
          |                      struct module *
    /home/aleksander/workspace/openwrt/build_dir/target-mips_24kc_musl/linux-lantiq_xway/ltq-adsl-mei-ar9/ltq-adsl-mei/drv_mei_cpe.c:2774:34: note: in expansion of macro 'THIS_MODULE'
     2774 |         dsl_class = class_create(THIS_MODULE, "ifx_mei");
          |                                  ^~~~~~~~~~~
    In file included from ./include/linux/device.h:31,
                     from ./include/linux/dma-mapping.h:8,
                     from ./include/linux/skbuff.h:28,
                     from ./include/net/net_namespace.h:43,
                     from ./include/linux/netdevice.h:38,
                     from /home/aleksander/workspace/openwrt/build_dir/target-mips_24kc_musl/linux-lantiq_xway/ltq-adsl-mei-ar9/ltq-adsl-mei/drv_mei_cpe.c:39:
    ./include/linux/device/class.h:230:54: note: expected 'const char *' but argument is of type 'struct module *'
      230 | struct class * __must_check class_create(const char *name);
          |                                          ~~~~~~~~~~~~^~~~
    /home/aleksander/workspace/openwrt/build_dir/target-mips_24kc_musl/linux-lantiq_xway/ltq-adsl-mei-ar9/ltq-adsl-mei/drv_mei_cpe.c:2774:21: error: too many arguments to function 'class_create'
     2774 |         dsl_class = class_create(THIS_MODULE, "ifx_mei");
          |                     ^~~~~~~~~~~~
    ./include/linux/device/class.h:230:29: note: declared here
      230 | struct class * __must_check class_create(const char *name);
          |                             ^~~~~~~~~~~~
    cc1: all warnings being treated as errors
    
    Signed-off-by: Aleksander Jan Bajkowski <olek2 at wp.pl>
---
 package/kernel/lantiq/ltq-adsl-mei/src/drv_mei_cpe.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/kernel/lantiq/ltq-adsl-mei/src/drv_mei_cpe.c b/package/kernel/lantiq/ltq-adsl-mei/src/drv_mei_cpe.c
index b5e7f07319..ba23232ee9 100644
--- a/package/kernel/lantiq/ltq-adsl-mei/src/drv_mei_cpe.c
+++ b/package/kernel/lantiq/ltq-adsl-mei/src/drv_mei_cpe.c
@@ -2771,7 +2771,11 @@ static int ltq_mei_probe(struct platform_device *pdev)
 	IFX_MEI_DMSG("Start loopback test...\n");
 	DFE_Loopback_Test ();
 #endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
 	dsl_class = class_create(THIS_MODULE, "ifx_mei");
+#else
+	dsl_class = class_create("ifx_mei");
+#endif
 	device_create(dsl_class, NULL, MKDEV(MEI_MAJOR, 0), NULL, "ifx_mei");
 	return 0;
 }