irqbalance: fix socket directory and create it

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>

utils/irqbalance/Makefile

@@ -6,7 +6,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=irqbalance
 PKG_VERSION:=1.6.0
-PKG_RELEASE:=9
+PKG_RELEASE:=10
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_PROTO:=git

utils/irqbalance/files/irqbalance.init

@@ -16,6 +16,8 @@ start_service() {
 	config_get_bool enabled irqbalance enabled 0
 	[ "$enabled" -gt 0 ] || return 0
 
+	mkdir -p /var/run/irqbalance
+
 	# 10 is the default
 	config_get interval irqbalance interval 10
 

utils/irqbalance/patches/110-fix-runtime-socket-directory.patch

@@ -0,0 +1,22 @@
+--- a/irqbalance.h
++++ b/irqbalance.h
+@@ -158,7 +158,7 @@ extern unsigned int log_mask;
+ #endif /* HAVE_LIBSYSTEMD */
+ 
+ #define SOCKET_PATH "irqbalance"
+-#define SOCKET_TMPFS "/run/irqbalance/"
++#define SOCKET_TMPFS "/var/run/irqbalance/"
+ 
+ #endif /* __INCLUDE_GUARD_IRQBALANCE_H_ */
+ 
+--- a/ui/irqbalance-ui.h
++++ b/ui/irqbalance-ui.h
+@@ -8,7 +8,7 @@
+ #include <glib-unix.h>
+ 
+ #define SOCKET_PATH "irqbalance"
+-#define SOCKET_TMPFS "/run/irqbalance"
++#define SOCKET_TMPFS "/var/run/irqbalance"
+ 
+ #define STATS "stats"
+ #define SET_SLEEP "settings sleep "