From 315421e634577b87d6cf2cee57edf367ac6868b6 Mon Sep 17 00:00:00 2001
From: Matthias Reichl <hias@horus.com>
Date: Sat, 1 Dec 2018 12:15:53 +0100
Subject: [PATCH] linux: move .config/firmware handling to kernel overlay
 system

Creating an updates symlink to /storage/.config/firmware in the
kernel firmware directory makes it impossible to add firmware
overlays with an updates folder.

Furthermore bluez/hciattach only looks for firmware files directly in
the /lib/firmware directory and ignores the /lib/firmware/updates
directory. So adding BT firmware via .config/firmware didn't work.

Solve this by adding files from /storage/.config/firmware as the
last step in kernel overlays setup so firmware files from there
will show up directly under /lib/firmware and override other firmware
files installed by the system and kernel overlays.

Signed-off-by: Matthias Reichl <hias@horus.com>
---
 packages/linux/package.mk                               | 1 -
 packages/sysutils/systemd/scripts/kernel-overlays-setup | 9 +++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/packages/linux/package.mk b/packages/linux/package.mk
index 7eba1e703c..b4fbc68d5b 100644
--- a/packages/linux/package.mk
+++ b/packages/linux/package.mk
@@ -296,7 +296,6 @@ makeinstall_init() {
 
 post_install() {
   mkdir -p $INSTALL/$(get_full_firmware_dir)/
-    ln -sf /storage/.config/firmware/ $INSTALL/$(get_full_firmware_dir)/updates
 
   # regdb and signature is now loaded as firmware by 4.15+
     if grep -q ^CONFIG_CFG80211_REQUIRE_SIGNED_REGDB= $PKG_BUILD/.config; then
diff --git a/packages/sysutils/systemd/scripts/kernel-overlays-setup b/packages/sysutils/systemd/scripts/kernel-overlays-setup
index f9d1b27353..8b27956967 100755
--- a/packages/sysutils/systemd/scripts/kernel-overlays-setup
+++ b/packages/sysutils/systemd/scripts/kernel-overlays-setup
@@ -8,6 +8,7 @@ OVERLAY_CONFIG_DIR=/storage/.cache/kernel-overlays
 KVER=$(uname -r)
 MODULES_DIR="/var/lib/modules/${KVER}"
 FIRMWARE_DIR="/var/lib/firmware"
+USER_FIRMWARE_DIR="/storage/.config/firmware"
 
 mkdir -p "${MODULES_DIR}"
 mkdir -p "${FIRMWARE_DIR}"
@@ -73,4 +74,12 @@ if [ -d "${OVERLAY_CONFIG_DIR}" ] ; then
   fi
 fi
 
+if [ -d "${USER_FIRMWARE_DIR}" -a -n "$(ls ${USER_FIRMWARE_DIR})" ] ; then
+  if cp -rfs "${USER_FIRMWARE_DIR}"/* "${FIRMWARE_DIR}" ; then
+    log "added firmware from ${USER_FIRMWARE_DIR}"
+  else
+    log "failed to add firmware from ${USER_FIRMWARE_DIR}"
+  fi
+fi
+
 log "done"