[PATCH 10/14] alpha: use generic syscall audit classification

[Magnus Lindholm <linmag7@gmail.com>]

Replace Alpha's duplicate audit classes and classifier with
AUDIT_GENERIC. Alpha has no compat syscall ABI requiring a private
implementation.

The generic classifier also makes execveat match execute-permission
rules, as execve already does.

Signed-off-by: Magnus Lindholm <linmag7@gmail.com>
---
 arch/alpha/Kconfig         |  4 ---
 arch/alpha/kernel/Makefile |  1 -
 arch/alpha/kernel/audit.c  | 62 ----------------------------------------------
 3 files changed, 67 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 19ed083d4f0617218e37a3bac516ec82c5423d7e..014a52e63dec88d72c51c93b3d1c254839ecf33c 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -53,7 +53,6 @@ config ALPHA
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_WANT_LD_ORPHAN_WARN
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
-	select AUDIT_ARCH
 	select EDAC_SUPPORT
 	select GENERIC_CPU_VULNERABILITIES
 	select GENERIC_SMP_IDLE_THREAD
@@ -110,9 +109,6 @@ config PGTABLE_LEVELS
 	int
 	default 3
 
-config AUDIT_ARCH
-	bool
-
 config STACKTRACE_SUPPORT
 	def_bool y
 
diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index 668556d8496c0c3ee03996cf5a4a0ee56b980891..850f1265cc55db5e0472c37b693dc952bdc75421 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -20,7 +20,6 @@ obj-$(CONFIG_MODULES)	+= module.o
 obj-$(CONFIG_PERF_EVENTS) += perf_event.o
 obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o
 obj-$(CONFIG_RTC_DRV_ALPHA) += rtc.o
-obj-$(CONFIG_AUDIT)	+= audit.o
 
 ifdef CONFIG_ALPHA_GENERIC
 
diff --git a/arch/alpha/kernel/audit.c b/arch/alpha/kernel/audit.c
deleted file mode 100644
index 3ab04709784a225e1a325cd68f8a1fa3865bd170..0000000000000000000000000000000000000000
--- a/arch/alpha/kernel/audit.c
+++ /dev/null
@@ -1,62 +0,0 @@
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/audit.h>
-#include <asm/unistd.h>
-
-static unsigned dir_class[] = {
-#include <asm-generic/audit_dir_write.h>
-~0U
-};
-
-static unsigned read_class[] = {
-#include <asm-generic/audit_read.h>
-~0U
-};
-
-static unsigned write_class[] = {
-#include <asm-generic/audit_write.h>
-~0U
-};
-
-static unsigned chattr_class[] = {
-#include <asm-generic/audit_change_attr.h>
-~0U
-};
-
-static unsigned signal_class[] = {
-#include <asm-generic/audit_signal.h>
-~0U
-};
-
-int audit_classify_arch(int arch)
-{
-	return 0;
-}
-
-int audit_classify_syscall(int abi, unsigned syscall)
-{
-	switch(syscall) {
-	case __NR_open:
-		return AUDITSC_OPEN;
-	case __NR_openat:
-		return AUDITSC_OPENAT;
-	case __NR_execve:
-		return AUDITSC_EXECVE;
-	case __NR_openat2:
-		return AUDITSC_OPENAT2;
-	default:
-		return AUDITSC_NATIVE;
-	}
-}
-
-static int __init audit_classes_init(void)
-{
-	audit_register_class(AUDIT_CLASS_WRITE, write_class);
-	audit_register_class(AUDIT_CLASS_READ, read_class);
-	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
-	audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
-	audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
-	return 0;
-}
-
-__initcall(audit_classes_init);
-- 
2.43.0