Re: [PATCH] audit: remove unused macros

Thanks for comments! So here is the v2 according to your suggestion! From 033425b6072ff4cee05d6bbffc97cd6a4c13166c Mon Sep 17 00:00:00 2001 From: Alex Shi <alex.shi(a)linux.alibaba.com&gt; Date: Fri, 6 Nov 2020 16:31:22 +0800 Subject: [PATCH v2] kernel/audit: fix macros warning Some unused macros could cause gcc warning: kernel/audit.c:68:0: warning: macro "AUDIT_UNINITIALIZED" is not used [-Wunused-macros] kernel/auditsc.c:104:0: warning: macro "AUDIT_AUX_IPCPERM" is not used [-Wunused-macros] kernel/auditsc.c:82:0: warning: macro "AUDITSC_INVALID" is not used [-Wunused-macros] AUDIT_UNINITIALIZED and AUDITSC_INVALID are still meaningful and could be used in code.

Just remove AUDIT_AUX_IPCPERM. Thanks comments from Richard Guy Briggs and Paul Moore. Signed-off-by: Alex Shi <alex.shi(a)linux.alibaba.com&gt; Cc: Paul Moore <paul(a)paul-moore.com&gt; Cc: Eric Paris <eparis(a)redhat.com&gt; Cc: linux-audit(a)redhat.com Cc: linux-kernel(a)vger.kernel.org --- kernel/audit.c | 2 +- kernel/auditsc.c | 10 ++++------ 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/kernel/audit.c b/kernel/audit.c index ac0aeaa99937..e22f22bdc000 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -67,7 +67,7 @@ #define AUDIT_DISABLED -1 #define AUDIT_UNINITIALIZED 0 #define AUDIT_INITIALIZED 1 -static int audit_initialized; +static int audit_initialized = AUDIT_UNINITIALIZED; u32 audit_enabled = AUDIT_OFF; bool audit_ever_enabled = !!AUDIT_OFF; diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 183d79cc2e12..ea0ed81ddee0 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c @@ -102,8 +102,6 @@ struct audit_aux_data { int type; }; -#define AUDIT_AUX_IPCPERM 0 - /* Number of target pids per aux struct. */ #define AUDIT_AUX_PIDS 16 @@ -552,11 +550,11 @@ static int audit_filter_rules(struct task_struct *tsk, break; case AUDIT_EXIT: - if (ctx && ctx->return_valid) + if (ctx && ctx->return_valid != AUDITSC_INVALID) result = audit_comparator(ctx->return_code, f->op, f->val); break; case AUDIT_SUCCESS: - if (ctx && ctx->return_valid) { + if (ctx && ctx->return_valid != AUDITSC_INVALID) { if (f->val) result = audit_comparator(ctx->return_valid, f->op, AUDITSC_SUCCESS); else @@ -1488,7 +1486,7 @@ static void audit_log_exit(void) context->arch, context->major); if (context->personality != PER_LINUX) audit_log_format(ab, " per=%lx", context->personality); - if (context->return_valid) + if (context->return_valid != AUDITSC_INVALID) audit_log_format(ab, " success=%s exit=%ld", (context->return_valid==AUDITSC_SUCCESS)?"yes":"no", context->return_code); @@ -1625,7 +1623,7 @@ void __audit_free(struct task_struct *tsk) * need to log via audit_log_exit(). */ if (tsk == current && !context->dummy && context->in_syscall) { - context->return_valid = 0; + context->return_valid = AUDITSC_INVALID; context->return_code = 0; audit_filter_syscall(tsk, context,

-- 1.8.3.1