From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 15 Oct 2024 23:53:38 +0000 (-0700)
Subject: mm-kasan-kmsan-copy_from-to_kernel_nofault-fix
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=93d2efd8319fbe8b2ca8302812c08a385f36d4a7;p=users%2Fjedix%2Flinux-maple.git

mm-kasan-kmsan-copy_from-to_kernel_nofault-fix

fix comment layout, per checkpatch

Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Sabyrzhan Tasbolatov <snovitoll@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/kasan/kasan_test_c.c b/mm/kasan/kasan_test_c.c
index e52c6ab803e80..fe132ce3c2b34 100644
--- a/mm/kasan/kasan_test_c.c
+++ b/mm/kasan/kasan_test_c.c
@@ -1934,8 +1934,10 @@ static void copy_to_kernel_nofault_oob(struct kunit *test)
 	char buf[128];
 	size_t size = sizeof(buf);
 
-	/* This test currently fails with the HW_TAGS mode.
-	 * The reason is unknown and needs to be investigated. */
+	/*
+	 * This test currently fails with the HW_TAGS mode. The reason is
+	 * unknown and needs to be investigated.
+	 */
 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_HW_TAGS);
 
 	ptr = kmalloc(size - KASAN_GRANULE_SIZE, GFP_KERNEL);
@@ -1943,16 +1945,16 @@ static void copy_to_kernel_nofault_oob(struct kunit *test)
 	OPTIMIZER_HIDE_VAR(ptr);
 
 	/*
-	* We test copy_to_kernel_nofault() to detect corrupted memory that is
-	* being written into the kernel. In contrast, copy_from_kernel_nofault()
-	* is primarily used in kernel helper functions where the source address
-	* might be random or uninitialized. Applying KASAN instrumentation to
-	* copy_from_kernel_nofault() could lead to false positives.
-	* By focusing KASAN checks only on copy_to_kernel_nofault(),
-	* we ensure that only valid memory is written to the kernel,
-	* minimizing the risk of kernel corruption while avoiding
-	* false positives in the reverse case.
-	*/
+	 * We test copy_to_kernel_nofault() to detect corrupted memory that is
+	 * being written into the kernel. In contrast,
+	 * copy_from_kernel_nofault() is primarily used in kernel helper
+	 * functions where the source address might be random or uninitialized.
+	 * Applying KASAN instrumentation to copy_from_kernel_nofault() could
+	 * lead to false positives.  By focusing KASAN checks only on
+	 * copy_to_kernel_nofault(), we ensure that only valid memory is
+	 * written to the kernel, minimizing the risk of kernel corruption
+	 * while avoiding false positives in the reverse case.
+	 */
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		copy_to_kernel_nofault(&buf[0], ptr, size));
 	KUNIT_EXPECT_KASAN_FAIL(test,