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kernel: kernel_compat: Remove inline get_cred_rcu

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Since commit:
kernel: core_hook: switch to prepare_creds (c58e102)

get_cred_rcu is no longer needed.

Signed-off-by: rsuntk <90097027+rsuntk@users.noreply.github.com>
This commit is contained in:
rsuntk
2025-06-10 17:21:12 +00:00
committed by ShirkNeko
parent 3e7cae8134
commit 71bb5a3d3b
2 changed files with 0 additions and 33 deletions
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12
kernel/Makefile
View File

@@ -48,18 +48,6 @@ ifeq ($(shell grep -q "struct selinux_state " $(srctree)/security/selinux/includ
ccflags-y += -DKSU_COMPAT_HAS_SELINUX_STATE
endif
# This feature was introduced in linux 5.0-rc1
ifeq ($(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)
ccflags-y += -DKSU_COMPAT_ATOMIC_LONG
endif
ifeq ($(shell grep -q "int\s\+non_rcu" $(srctree)/include/linux/cred.h; echo $$?),0)
ccflags-y += -DKSU_COMPAT_HAS_NONCONST_CRED
endif
endif
# Handle optional backports
ifeq ($(shell grep -q "strncpy_from_user_nofault" $(srctree)/include/linux/uaccess.h; echo $$?),0)
ccflags-y += -DKSU_OPTIONAL_STRNCPY

21
kernel/kernel_compat.h
View File

@@ -7,27 +7,6 @@
#include "ss/policydb.h"
#include "linux/key.h"
// for kernel without get_cred_rcu
#ifndef KSU_COMPAT_HAS_GET_CRED_RCU
static inline const struct cred *get_cred_rcu(const struct cred *cred)
{
struct cred *nonconst_cred = (struct cred *) cred;
if (!cred)
return NULL;
#ifdef KSU_COMPAT_ATOMIC_LONG
if (!atomic_long_inc_not_zero(&nonconst_cred->usage))
#else
if (!atomic_inc_not_zero(&nonconst_cred->usage))
#endif
return NULL;
validate_creds(cred);
#ifdef KSU_COMPAT_HAS_NONCONST_CRED
nonconst_cred->non_rcu = 0;
#endif
return cred;
}
#endif
/*
* Adapt to Huawei HISI kernel without affecting other kernels ,
* Huawei Hisi Kernel EBITMAP Enable or Disable Flag ,