From 467bbeb74e36238bb01d848da57de362fa8b4901 Mon Sep 17 00:00:00 2001
From: rsuntk <90097027+rsuntk@users.noreply.github.com>
Date: Fri, 6 Jun 2025 11:48:16 +0700
Subject: [PATCH] kernel: Remove more stray backslash in grep regex and move
 path_umount as optional backport

---
 kernel/Makefile | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/kernel/Makefile b/kernel/Makefile
index 6991426b..adb47909 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -97,10 +97,10 @@ endif
 ifeq ($(shell grep -q "get_cred_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
 ccflags-y += -DKSU_COMPAT_HAS_GET_CRED_RCU
 else
-ifeq ($(shell grep -q "atomic_long_t\s\+\usage" $(srctree)/include/linux/cred.h; echo $$?),0)
+ifeq ($(shell grep -q "atomic_long_t\s\+usage" $(srctree)/include/linux/cred.h; echo $$?),0)
 ccflags-y += -DKSU_COMPAT_ATOMIC_LONG
 endif
-ifeq ($(shell grep -q "int\s\+\non_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
+ifeq ($(shell grep -q "int\s\+non_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
 ccflags-y += -DKSU_COMPAT_HAS_NONCONST_CRED
 endif
 endif
@@ -118,18 +118,15 @@ ifeq ($(shell grep "ssize_t kernel_write" $(srctree)/fs/read_write.c | grep -q "
 ccflags-y += -DKSU_KERNEL_WRITE
 endif
 
+ifeq ($(shell grep -q "int\s\+path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
+ccflags-y += -DKSU_HAS_PATH_UMOUNTAdd commentMore actions
+endif
+
 # 检查三星 UH 驱动程序
 ifeq ($(shell grep -q "CONFIG_KDP_CRED" $(srctree)/kernel/cred.c; echo $$?),0)
 ccflags-y += -DSAMSUNG_UH_DRIVER_EXIST
 endif
 
-#ccflags-y += -DKSU_UMOUNT
-
-# Do checks before compile
-ifeq ($(shell grep -q "int\s\+path_umount" $(srctree)/fs/namespace.c; echo $$?),0)
-ccflags-y += -DKSU_HAS_PATH_UMOUNT
-endif
-
 ## For susfs stuff ##
 ifeq ($(shell test -e $(srctree)/fs/susfs.c; echo $$?),0)
 $(eval SUSFS_VERSION=$(shell cat $(srctree)/include/linux/susfs.h | grep -E '^#define SUSFS_VERSION' | cut -d' ' -f3 | sed 's/"//g'))