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kernel/Makefile: remove redundant get_cred_rcu backports

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This commit is contained in:
Rifat Azad
2025-07-14 20:11:13 +06:00
parent 14b7861f44
commit bd03c296a1
2 changed files with 0 additions and 38 deletions
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34
kernel/Makefile
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@@ -68,42 +68,8 @@ $(info -- KernelSU-Next Manager signature hash: $(KSU_NEXT_EXPECTED_HASH))
ccflags-y += -DEXPECTED_NEXT_SIZE=$(KSU_NEXT_EXPECTED_SIZE) ccflags-y += -DEXPECTED_NEXT_SIZE=$(KSU_NEXT_EXPECTED_SIZE)
ccflags-y += -DEXPECTED_NEXT_HASH=\"$(KSU_NEXT_EXPECTED_HASH)\" ccflags-y += -DEXPECTED_NEXT_HASH=\"$(KSU_NEXT_EXPECTED_HASH)\"
ccflags-y += -DKSU_COMPAT_GET_CRED_RCU
ccflags-y += -DKSU_UMOUNT ccflags-y += -DKSU_UMOUNT
# Determine the appropriate atomic function and apply patch accordingly
ifeq ($(shell grep -q "atomic_inc_not_zero" $(srctree)/kernel/cred.c; echo $$?),0)
ATOMIC_INC_FUNC = atomic_inc_not_zero
else ifeq ($(shell grep -q "atomic_long_inc_not_zero" $(srctree)/kernel/cred.c; echo $$?),0)
ATOMIC_INC_FUNC = atomic_long_inc_not_zero
else
$(info -- KSU_NEXT: Neither atomic_inc_not_zero nor atomic_long_inc_not_zero found in kernel/cred.c)
endif
# Inform which function is being patched
$(info -- KSU_NEXT: Using $(ATOMIC_INC_FUNC) in get_cred_rcu patch.)
# Add the get_cred_rcu function to cred.h if not already present
ifneq ($(shell grep -Eq "^static inline const struct cred \*get_cred_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
$(info -- KSU_NEXT: adding function 'static inline const struct cred *get_cred_rcu(const struct cred *cred);' to $(srctree)/include/linux/cred.h)
GET_CRED_RCU = static inline const struct cred *get_cred_rcu(const struct cred *cred)\n\
{\n\t\
struct cred *nonconst_cred = (struct cred *) cred;\n\t\
if (!cred)\n\t\t\
return NULL;\n\t\
if (!$(ATOMIC_INC_FUNC)(&nonconst_cred->usage))\n\t\t\
return NULL;\n\t\
validate_creds(cred);\n\t\
return cred;\n\
}\n
$(shell grep -qF "$(GET_CRED_RCU)" $(srctree)/include/linux/cred.h || sed -i '/^static inline void put_cred/i $(GET_CRED_RCU)' $(srctree)/include/linux/cred.h)
# Modify get_task_cred in cred.c
$(info -- KSU_NEXT: modifying 'get_task_cred' function in $(srctree)/kernel/cred.c)
$(shell sed -i "s/!$(ATOMIC_INC_FUNC)(&((struct cred \*)cred)->usage)/!get_cred_rcu(cred)/g" $(srctree)/kernel/cred.c)
endif
ifneq ($(shell grep -Eq "^static int can_umount" $(srctree)/fs/namespace.c; echo $$?),0) ifneq ($(shell grep -Eq "^static int can_umount" $(srctree)/fs/namespace.c; echo $$?),0)
$(info -- KSU_NEXT: adding function 'static int can_umount(const struct path *path, int flags);' to $(srctree)/fs/namespace.c) $(info -- KSU_NEXT: adding function 'static int can_umount(const struct path *path, int flags);' to $(srctree)/fs/namespace.c)
CAN_UMOUNT = static int can_umount(const struct path *path, int flags)\n\ CAN_UMOUNT = static int can_umount(const struct path *path, int flags)\n\

4
kernel/core_hook.c
View File

@@ -47,10 +47,6 @@
#include "throne_tracker.h" #include "throne_tracker.h"
#include "kernel_compat.h" #include "kernel_compat.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0) || defined(KSU_COMPAT_GET_CRED_RCU)
#define KSU_GET_CRED_RCU
#endif
static bool ksu_module_mounted = false; static bool ksu_module_mounted = false;
extern int handle_sepolicy(unsigned long arg3, void __user *arg4); extern int handle_sepolicy(unsigned long arg3, void __user *arg4);