Compile error xdna driver

[zamroni111]

slab.h needs to be included:

`[INFO] Re-Generate BUILD_ROOT_DIR: /var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c: In function ‘mailbox_release_msg’:
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c:279:9: error: implicit declaration of function ‘kfree’; did you mean ‘vfree’? [-Werror=implicit-function-declaration]
279 | kfree(mb_msg);
| ^~~~~
| vfree
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c: In function ‘xdna_mailbox_send_msg’:
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c:652:18: error: implicit declaration of function ‘kzalloc’; did you mean ‘vzalloc’? [-Werror=implicit-function-declaration]
652 | mb_msg = kzalloc(sizeof(*mb_msg) + pkg_size, GFP_KERNEL);
| ^~~~~~~
| vzalloc
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c:652:16: error: assignment to ‘struct mailbox_msg *’ from ‘int’ makes pointer from integer without a cast [-Werror=int-conversion]
652 | mb_msg = kzalloc(sizeof(*mb_msg) + pkg_size, GFP_KERNEL);
| ^
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c: In function ‘xdna_mailbox_create_channel’:
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c:828:18: error: assignment to ‘struct mailbox_channel *’ from ‘int’ makes pointer from integer without a cast [-Werror=int-conversion]
828 | mb_chann = kzalloc(sizeof(*mb_chann), GFP_KERNEL);
| ^
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c: In function ‘xdna_mailbox_create’:
/var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.c:981:12: error: assignment to ‘struct mailbox *’ from ‘int’ makes pointer from integer without a cast [-Werror=int-conversion]
981 | mb = kzalloc(sizeof(*mb), GFP_KERNEL);
| ^
cc1: all warnings being treated as errors
make[7]: *** [scripts/Makefile.build:229: /var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna/amdxdna_mailbox.o] Error 1
make[6]: *** [/usr/src/linux-headers-6.12.6a/Makefile:1937: /var/tmp/xdna/xdna-driver/build/Release/src/driver/amdxdna/driver/amdxdna] Error 2
make[5]: *** [Makefile:224: __sub-make] Error 2
make[4]: *** [Makefile:29: modules] Error 2
make[3]: *** [/var/tmp/xdna/xdna-driver/build/Release/src/driver/driver/amdxdna/Makefile:20: all] Error 2
make[2]: *** [src/driver/CMakeFiles/driver.dir/build.make:73: src/driver/amdxdna.ko] Error 2
make[1]: *** [CMakeFiles/Makefile2:2390: src/driver/CMakeFiles/driver.dir/all] Error 2
make: *** [Makefile:156: all] Error 2

`