kcov-avoid-clang-out-of-range-warning.patch removed from -mm tree

The quilt patch titled
Subject: kcov: avoid clang out-of-range warning
has been removed from the -mm tree. Its filename was
kcov-avoid-clang-out-of-range-warning.patch

This patch was dropped because it was merged into the mm-nonmm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Arnd Bergmann <[email protected]>
Subject: kcov: avoid clang out-of-range warning
Date: Thu, 28 Mar 2024 15:30:42 +0100

The area_size is never larger than the maximum on 64-bit architectutes:

kernel/kcov.c:634:29: error: result of comparison of constant 1152921504606846975 with expression of type '__u32' (aka 'unsigned int') is always false [-Werror,-Wtautological-constant-out-of-range-compare]

                if (remote_arg->area_size > LONG_MAX / sizeof(unsigned long))
                    ~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The compiler can correctly optimize the check away and the code appears correct to me, so just add a cast to avoid the warning.

---

 kernel/kcov.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

@@ -627,7 +627,8 @@ static int kcov_ioctl_locked(struct kcov
 		mode = kcov_get_mode(remote_arg->trace_mode);
 		if (mode < 0)
 			return mode;
-		if (remote_arg->area_size > LONG_MAX / sizeof(unsigned long))
+		if ((unsigned long)remote_arg->area_size >
+		    LONG_MAX / sizeof(unsigned long))
 			return -EINVAL;
 		kcov->mode = mode;
 		t->kcov = kcov;

_

Patches currently in -mm which might be from [email protected] are

kbuild-turn-on-wextra-by-default.patch kbuild-remove-redundant-extra-warning-flags.patch kbuild-turn-on-wrestrict-by-default.patch kbuild-enable-wformat-truncation-on-clang.patch kbuild-enable-wcast-function-type-strict-unconditionally.patch