From c091cf7b2cb7d54f3326dc4645dcd4f55a709da5 Mon Sep 17 00:00:00 2001
From: Arun-Prasad-V <arunprasadv777@gmail.com>
Date: Tue, 13 Aug 2024 16:30:35 +0530
Subject: [PATCH] updated manual patch script for ubuntu 24 support

---
 scripts/patch-realsense-ubuntu-lts-hwe.sh |  5 +++--
 scripts/patch-utils-hwe.sh                | 17 +++++++++++++----
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/scripts/patch-realsense-ubuntu-lts-hwe.sh b/scripts/patch-realsense-ubuntu-lts-hwe.sh
index da42db9830..820d5ec3b2 100755
--- a/scripts/patch-realsense-ubuntu-lts-hwe.sh
+++ b/scripts/patch-realsense-ubuntu-lts-hwe.sh
@@ -71,7 +71,7 @@ source ./scripts/patch-utils-hwe.sh
 LINUX_BRANCH=${LINUX_BRANCH:-$(uname -r)}
 
 # Get the required tools and headers to build the kernel
-sudo apt-get install linux-headers-generic linux-headers-$LINUX_BRANCH build-essential git bc -y
+sudo apt-get install linux-headers-$LINUX_BRANCH build-essential git bc -y
 #Packages to build the patched modules
 require_package libusb-1.0-0-dev
 require_package libssl-dev
@@ -137,7 +137,7 @@ if [ $rebuild_ko -eq 0 ];
 then
 	#Search the repository for the tag that matches the mmaj.min.patch-build of Ubuntu kernel
 	kernel_full_num=$(echo $LINUX_BRANCH | cut -d '-' -f 1,2)
-	if [ "${ubuntu_codename}" != "jammy" ];
+	if [[ "${ubuntu_codename}" != "jammy" && "${ubuntu_codename}" != "noble" ]];
 	then
 		kernel_git_tag=$(git ls-remote --tags origin | grep "${kernel_full_num}\." | grep '[^^{}]$' | tail -n 1 | awk -F/ '{print $NF}')
 	else
@@ -330,6 +330,7 @@ fi
 # As a precausion start with unloading the core uvcvideo:
 try_unload_module uvcvideo
 try_unload_module videobuf2_v4l2
+[ ${k_maj_min} -ge 608 ] && try_unload_module videobuf2_memops
 [ ${k_maj_min} -ge 500 ] && try_unload_module videobuf2_common
 [ ${k_maj_min} -ge 605 ] && try_unload_module uvc
 try_unload_module videodev
diff --git a/scripts/patch-utils-hwe.sh b/scripts/patch-utils-hwe.sh
index b1ff9412b1..e96d89a39d 100644
--- a/scripts/patch-utils-hwe.sh
+++ b/scripts/patch-utils-hwe.sh
@@ -157,7 +157,7 @@ function choose_kernel_branch {
 			;;
 		esac
 	else
-		echo -e "\e[31mUnsupported distribution $2, kernel version $1 . The patches are maintained for Ubuntu 16/18/20/22/24 LTS\e[0m" >&2
+		echo -e "\e[31mUnsupported distribution $2, kernel version $1 . The patches are maintained for Ubuntu 20/22/24 LTS\e[0m" >&2
 		exit 1
 	fi
 }
@@ -232,7 +232,10 @@ function try_module_insert {
 	fi
 
 	# backup the existing module (if available) for recovery
-	if [ -f ${tgt_ko} ];
+	if [ -f ${tgt_ko}.zst ];
+	then
+		sudo cp ${tgt_ko}.zst ${tgt_ko}.zst.bckup
+	elif [ -f ${tgt_ko} ];
 	then
 		sudo cp ${tgt_ko} ${tgt_ko}.bckup
 	else
@@ -254,7 +257,12 @@ function try_module_insert {
 		echo -e "\e[31mVerify that the current kernel version is aligned to the patched module version\e[0m"
 		if [ ${backup_available} -ne 0 ];
 		then
-			sudo cp ${tgt_ko}.bckup ${tgt_ko}
+			if [ -f ${tgt_ko}.zst.bckup ];
+			then
+				sudo cp ${tgt_ko}.zst.bckup ${tgt_ko}.zst
+			else
+				sudo cp ${tgt_ko}.bckup ${tgt_ko}
+			fi
 			sudo modprobe ${module_name}
 			printf "\e[34mThe original \e[33m %s \e[34m module was reloaded\n\e[0m" ${module_name}
 		fi
@@ -262,7 +270,8 @@ function try_module_insert {
 	else
 		# Everything went OK, delete backup
 		printf "\e[32m succeeded\e[0m"
-		sudo rm ${tgt_ko}.bckup
+		sudo rm -f ${tgt_ko}.zst.bckup
+		sudo rm -f ${tgt_ko}.bckup
 	fi
 
 	# Reload all dependent modules recursively