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From: Aaron Tomlin <atomlin@redhat.com>
To: mcgrof@kernel.org
Cc: cl@linux.com, pmladek@suse.com, mbenes@suse.cz,
	christophe.leroy@csgroup.eu, akpm@linux-foundation.org,
	linux-kernel@vger.kernel.org, linux-modules@vger.kernel.org,
	atomlin@atomlin.com, ghalat@redhat.com, oleksandr@natalenko.name,
	neelx@redhat.com
Subject: [PATCH v3 1/2] module: Make module_flags_taint() accept a module's taints bitmap directly
Date: Wed, 20 Apr 2022 12:52:56 +0100	[thread overview]
Message-ID: <20220420115257.3498300-2-atomlin@redhat.com> (raw)
In-Reply-To: <20220420115257.3498300-1-atomlin@redhat.com>

No functional change.

The purpose of this patch is to modify module_flags_taint() to accept a
module's taints bitmap as a parameter and modifies all users accordingly.
This is in preparation for module unload taint tracking support.

Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
---
 kernel/module/main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/module/main.c b/kernel/module/main.c
index 05a42d8fcd7a..ea78cec316dd 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -890,13 +890,13 @@ static inline int module_unload_init(struct module *mod)
 }
 #endif /* CONFIG_MODULE_UNLOAD */
 
-static size_t module_flags_taint(struct module *mod, char *buf)
+static size_t module_flags_taint(unsigned long taints, char *buf)
 {
 	size_t l = 0;
 	int i;
 
 	for (i = 0; i < TAINT_FLAGS_COUNT; i++) {
-		if (taint_flags[i].module && test_bit(i, &mod->taints))
+		if (taint_flags[i].module && test_bit(i, &taints))
 			buf[l++] = taint_flags[i].c_true;
 	}
 
@@ -974,7 +974,7 @@ static ssize_t show_taint(struct module_attribute *mattr,
 {
 	size_t l;
 
-	l = module_flags_taint(mk->mod, buffer);
+	l = module_flags_taint(mk->mod->taints, buffer);
 	buffer[l++] = '\n';
 	return l;
 }
@@ -2993,7 +2993,7 @@ char *module_flags(struct module *mod, char *buf)
 	    mod->state == MODULE_STATE_GOING ||
 	    mod->state == MODULE_STATE_COMING) {
 		buf[bx++] = '(';
-		bx += module_flags_taint(mod, buf + bx);
+		bx += module_flags_taint(mod->taints, buf + bx);
 		/* Show a - for module-is-being-unloaded */
 		if (mod->state == MODULE_STATE_GOING)
 			buf[bx++] = '-';
-- 
2.34.1


  reply	other threads:[~2022-04-20 11:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-20 11:52 [PATCH v3 0/2] module: Introduce module unload taint tracking Aaron Tomlin
2022-04-20 11:52 ` Aaron Tomlin [this message]
2022-04-20 11:52 ` [PATCH v3 2/2] " Aaron Tomlin
2022-04-21  6:43   ` kernel test robot
2022-04-21 14:28   ` Oleksandr Natalenko
2022-04-21 14:57     ` Aaron Tomlin
2022-04-22  8:11       ` Christoph Lameter
2022-04-22 12:23         ` Aaron Tomlin

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