Irqbalance defines /run/irqbalance dir for its socket
communication between irqbalance and its UI. /run does not exist
in OpenWrt (although it is defined by the Linux FHS), so the
socket creation fails. Although we do not compile UI and thus
the issue is not critical to us, fix the directory location.

Additionally, the creation is originally handled by a systemd
init script that we do not use.

* patch source to define dir as /var/run/irqbalance
* create the dir in the procd init script.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

Upgraded from 1.2.0 to 1.6.0 to pick up
all the latest fixes and improvements

irqbalance made glib2 mandatory since 1.3.0, but is
using very little of it. glib2 linked statically
to minimize the impact.

1.2.0 size: 33,619
1.6.0 size: 99,539

~# irqbalance --version
	irqbalance version 1.6.0

~# ldd /usr/sbin/irqbalance
	/lib/ld-musl-armhf.so.1 (0xb6f5f000)
	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb6f43000)
	libc.so => /lib/ld-musl-armhf.so.1 (0xb6f5f000)

~# opkg info irqbalance
	Package: irqbalance
	Version: 1.6.0-6
	Depends: libc
	Status: install user installed
	Architecture: arm_cortex-a7_neon-vfpv4
	Installed-Time: 1582839249

Compile-tested: ipq806x/R7800 & ipq40xx/GL-B1300
Run-tested:     ipq806x/R7800 & ipq40xx/GL-B1300

Signed-off-by: Marc Benoit <marcb62185@gmail.com>

AARCH64 compilation fails due to upstream bug in 1.2.0
that has been later fixed. Backport the fix commit.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

Revert an upstream commit to enable compiling without external glib2.

Edit the 'disable UI compilation' patch to match the original
upstream commit more closely.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

The purpose of irqbalance is to distribute hardware interrupts across
processors/cores on a multiprocessor/-core system in order to increase
performance.

This initial implementation of the package uses external glib2,
which is a large dependency.
Only the cmd-line tool is compiled and installed.

Run-tested with ipq806x / R7800.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>