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From:   Jim Cromie <jim.cromie@gmail.com>
To:     jbaron@akamai.com, gregkh@linuxfoundation.org,
        linux-kernel@vger.kernel.org
Cc:     Jim Cromie <jim.cromie@gmail.com>
Subject: [RFC PATCH v6 09/34] dyndbg: hoist ->site out of ddebug_match_site
Date:   Sat, 29 May 2021 14:00:04 -0600
Message-Id: <20210529200029.205306-10-jim.cromie@gmail.com>
In-Reply-To: <20210529200029.205306-1-jim.cromie@gmail.com>
References: <20210529200029.205306-1-jim.cromie@gmail.com>
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A coming change adds _get/_put abstraction on the site pointer, to
allow managing site info more flexibly.  The get/put pattern is best
done at a single lexical scope, where its more obviously correct, so
hoist the ->site ref out of ddebug_match_site, and pass it in instead.

no functional changes

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
 lib/dynamic_debug.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index d62dc471bc1f..e40ce438636a 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -144,10 +144,9 @@ static void vpr_info_dq(const struct ddebug_query *query, const char *msg)
 }
 
 static int ddebug_match_site(const struct ddebug_query *query,
-			     const struct _ddebug *dp)
+			     const struct _ddebug *dp,
+			     const struct _ddebug_site *dc)
 {
-	struct _ddebug_site *dc;
-
 	/* match against the format */
 	if (query->format) {
 		if (*query->format == '^') {
@@ -168,7 +167,6 @@ static int ddebug_match_site(const struct ddebug_query *query,
 	    dp->lineno > query->last_lineno)
 		return false;
 
-	dc = dp->site;
 	if (!dc) {
 		/* site info has been dropped, so query cannot test these fields */
 		if (query->filename || query->function)
@@ -220,9 +218,9 @@ static int ddebug_change(const struct ddebug_query *query,
 
 		for (i = 0; i < dt->num_ddebugs; i++) {
 			struct _ddebug *dp = &dt->ddebugs[i];
-			struct _ddebug_site *dc;
+			struct _ddebug_site *dc = dp->site;
 
-			if (!ddebug_match_site(query, dp))
+			if (!ddebug_match_site(query, dp, dc))
 				continue;
 
 			nfound++;
-- 
2.31.1