[openwrt/openwrt] mac80211: backport sched_set_fifo_low

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/1ed6eb176c77e8dff0004fc110af6874f535068f

commit 1ed6eb176c77e8dff0004fc110af6874f535068f
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Mon Sep 28 15:12:28 2020 +0200

    mac80211: backport sched_set_fifo_low
    
    This is needed for newer mt76 updates
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 .../072-backports-add-sched_set_fifo_low.patch     | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/package/kernel/mac80211/patches/subsys/072-backports-add-sched_set_fifo_low.patch b/package/kernel/mac80211/patches/subsys/072-backports-add-sched_set_fifo_low.patch
new file mode 100644
index 0000000000..9b266ffcb3
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/072-backports-add-sched_set_fifo_low.patch
@@ -0,0 +1,32 @@
+From: Felix Fietkau <nbd at nbd.name>
+Date: Mon, 28 Sep 2020 08:35:28 +0200
+Subject: [PATCH] backports: add sched_set_fifo_low
+
+It is needed for mt76
+
+Signed-off-by: Felix Fietkau <nbd at nbd.name>
+---
+ create mode 100644 backport/backport-include/linux/sched.h
+
+--- /dev/null
++++ b/backport-include/linux/sched.h
+@@ -0,0 +1,19 @@
++#ifndef __BACKPORT_LINUX_SCHED_H
++#define __BACKPORT_LINUX_SCHED_H
++
++#include_next <linux/sched.h>
++#include <linux/version.h>
++
++#if LINUX_VERSION_IS_LESS(5,9,0)
++#include <uapi/linux/sched/types.h>
++
++static inline void sched_set_fifo_low(struct task_struct *p)
++{
++	struct sched_param sparam = {.sched_priority = 1};
++
++	sched_setscheduler(p, SCHED_FIFO, &sparam);
++}
++
++#endif
++
++#endif