Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   andrey.konovalov@linux.dev
To:     Marco Elver <elver@google.com>,
        Alexander Potapenko <glider@google.com>
Cc:     Andrey Konovalov <andreyknvl@gmail.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Andrey Ryabinin <ryabinin.a.a@gmail.com>,
        kasan-dev@googlegroups.com, Peter Collingbourne <pcc@google.com>,
        Evgenii Stepanov <eugenis@google.com>,
        Florian Mayer <fmayer@google.com>,
        Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org,
        Andrey Konovalov <andreyknvl@google.com>
Subject: [PATCH mm v2 25/33] kasan: simplify print_report
Date:   Tue, 19 Jul 2022 02:10:05 +0200
Message-Id: <ca95c73bf01ea28e3d9324b170a9a86ff2b82b81.1658189199.git.andreyknvl@google.com>
In-Reply-To: <cover.1658189199.git.andreyknvl@google.com>
References: <cover.1658189199.git.andreyknvl@google.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Andrey Konovalov <andreyknvl@google.com>

To simplify reading the implementation of print_report(), remove the
tagged_addr variable and rename untagged_addr to addr.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/report.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index ac526c10ebff..dc38ada86f85 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -397,17 +397,16 @@ static void print_memory_metadata(const void *addr)
 
 static void print_report(struct kasan_report_info *info)
 {
-	void *tagged_addr = info->access_addr;
-	void *untagged_addr = kasan_reset_tag(tagged_addr);
-	u8 tag = get_tag(tagged_addr);
+	void *addr = kasan_reset_tag(info->access_addr);
+	u8 tag = get_tag(info->access_addr);
 
 	print_error_description(info);
-	if (addr_has_metadata(untagged_addr))
+	if (addr_has_metadata(addr))
 		kasan_print_tags(tag, info->first_bad_addr);
 	pr_err("\n");
 
-	if (addr_has_metadata(untagged_addr)) {
-		print_address_description(untagged_addr, tag);
+	if (addr_has_metadata(addr)) {
+		print_address_description(addr, tag);
 		print_memory_metadata(info->first_bad_addr);
 	} else {
 		dump_stack_lvl(KERN_ERR);
-- 
2.25.1