[openwrt/openwrt] kernel: broadcom-wl: add patch dropping set_fs and get_fs for > 5.13

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/f3fc9ac1aa99165b4b9b88db6c2274c8e90b4c18

commit f3fc9ac1aa99165b4b9b88db6c2274c8e90b4c18
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Tue May 9 22:04:17 2023 +0200

    kernel: broadcom-wl: add patch dropping set_fs and get_fs for > 5.13
    
    Drop set_fs and get_fs since they are not present in kernel > 5.13.
    Fix compilation warning:
    /__w/openwrt/openwrt/openwrt/build_dir/target-mipsel-openwrt-linux-musl_musl/linux-bcm47xx_generic/broadcom-wl-5.10.56.27.3/driver/wl_iw.c: In function 'dev_wlc_ioctl':
    /__w/openwrt/openwrt/openwrt/build_dir/target-mipsel-openwrt-linux-musl_musl/linux-bcm47xx_generic/broadcom-wl-5.10.56.27.3/driver/wl_iw.c:121:14: error: implicit declaration of function 'get_fs'; did you mean 'sget_fc'? [-Werror=implicit-function-declaration]
      121 |         fs = get_fs();
          |              ^~~~~~
          |              sget_fc
    /__w/openwrt/openwrt/openwrt/build_dir/target-mipsel-openwrt-linux-musl_musl/linux-bcm47xx_generic/broadcom-wl-5.10.56.27.3/driver/wl_iw.c:121:14: error: incompatible types when assigning to type 'mm_segment_t' from type 'int'
    /__w/openwrt/openwrt/openwrt/build_dir/target-mipsel-openwrt-linux-musl_musl/linux-bcm47xx_generic/broadcom-wl-5.10.56.27.3/driver/wl_iw.c:122:9: error: implicit declaration of function 'set_fs'; did you mean 'sget_fc'? [-Werror=implicit-function-declaration]
      122 |         set_fs(KERNEL_DS);
          |         ^~~~~~
          |         sget_fc
    /__w/openwrt/openwrt/openwrt/build_dir/target-mipsel-openwrt-linux-musl_musl/linux-bcm47xx_generic/broadcom-wl-5.10.56.27.3/driver/wl_iw.c:122:16: error: 'KERNEL_DS' undeclared (first use in this function); did you mean 'KERNFS_NS'?
      122 |         set_fs(KERNEL_DS);
          |                ^~~~~~~~~
          |                KERNFS_NS
    
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 .../918-fix-warning-compilation-for-5_15.patch     | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/package/kernel/broadcom-wl/patches/918-fix-warning-compilation-for-5_15.patch b/package/kernel/broadcom-wl/patches/918-fix-warning-compilation-for-5_15.patch
new file mode 100644
index 0000000000..4ddb643373
--- /dev/null
+++ b/package/kernel/broadcom-wl/patches/918-fix-warning-compilation-for-5_15.patch
@@ -0,0 +1,27 @@
+--- a/driver/wl_iw.c
++++ a/driver/wl_iw.c
+@@ -100,7 +100,9 @@ dev_wlc_ioctl(
+ {
+ 	struct ifreq ifr;
+ 	wl_ioctl_t ioc;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 13, 0)
+ 	mm_segment_t fs;
++#endif
+ 	int ret;
+ 
+ 	memset(&ioc, 0, sizeof(ioc));
+@@ -118,10 +120,14 @@ dev_wlc_ioctl(
+ 	dev_open(dev);
+ #endif
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 13, 0)
+ 	fs = get_fs();
+ 	set_fs(KERNEL_DS);
++#endif
+ 	ret = dev->netdev_ops->ndo_do_ioctl(dev, &ifr, SIOCDEVPRIVATE);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 13, 0)
+ 	set_fs(fs);
++#endif
+ 
+ 	return ret;
+ }