Merge tag 'v6.1-rc4' into regulator-6.2

Linux 6.1-rc4 which should get my CI working on RPi3s again.

7 files changed, 80 insertions, 79 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3fc7abffc7aa..29280072dc0e 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -400,8 +400,9 @@ config FRAME_WARN
 	default 1536 if (!64BIT && XTENSA)
 	default 1024 if !64BIT
 	default 2048 if 64BIT
+	default 0 if KMSAN
 	help
-	  Tell gcc to warn at build time for stack frames larger than this.
+	  Tell the compiler to warn at build time for stack frames larger than this.
 	  Setting this too low will cause a lot of warnings.
 	  Setting it to 0 disables the warning.
 
diff --git a/lib/kunit/string-stream.c b/lib/kunit/string-stream.c
index f5ae79c37400..a608746020a9 100644
--- a/lib/kunit/string-stream.c
+++ b/lib/kunit/string-stream.c
@@ -56,8 +56,8 @@ int string_stream_vadd(struct string_stream *stream,
 	frag_container = alloc_string_stream_fragment(stream->test,
 						      len,
 						      stream->gfp);
-	if (!frag_container)
-		return -ENOMEM;
+	if (IS_ERR(frag_container))
+		return PTR_ERR(frag_container);
 
 	len = vsnprintf(frag_container->fragment, len, fmt, args);
 	spin_lock(&stream->lock);
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index 90640a43cf62..2a6992fe7c3e 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -265,7 +265,7 @@ static void kunit_fail(struct kunit *test, const struct kunit_loc *loc,
 	kunit_set_failure(test);
 
 	stream = alloc_string_stream(test, GFP_KERNEL);
-	if (!stream) {
+	if (IS_ERR(stream)) {
 		WARN(true,
 		     "Could not allocate stream to print failed assertion in %s:%d\n",
 		     loc->file,
diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index e1743803c851..fbde494444b8 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -2903,8 +2903,8 @@ static inline void *mtree_range_walk(struct ma_state *mas)
 	unsigned long max, min;
 	unsigned long prev_max, prev_min;
 
-	last = next = mas->node;
-	prev_min = min = mas->min;
+	next = mas->node;
+	min = mas->min;
 	max = mas->max;
 	do {
 		offset = 0;
diff --git a/lib/nlattr.c b/lib/nlattr.c
index 40f22b177d69..b67a53e29b8f 100644
--- a/lib/nlattr.c
+++ b/lib/nlattr.c
@@ -124,10 +124,12 @@ void nla_get_range_unsigned(const struct nla_policy *pt,
 		range->max = U8_MAX;
 		break;
 	case NLA_U16:
+	case NLA_BE16:
 	case NLA_BINARY:
 		range->max = U16_MAX;
 		break;
 	case NLA_U32:
+	case NLA_BE32:
 		range->max = U32_MAX;
 		break;
 	case NLA_U64:
@@ -159,31 +161,6 @@ void nla_get_range_unsigned(const struct nla_policy *pt,
 	}
 }
 
-static u64 nla_get_attr_bo(const struct nla_policy *pt,
-			   const struct nlattr *nla)
-{
-	switch (pt->type) {
-	case NLA_U16:
-		if (pt->network_byte_order)
-			return ntohs(nla_get_be16(nla));
-
-		return nla_get_u16(nla);
-	case NLA_U32:
-		if (pt->network_byte_order)
-			return ntohl(nla_get_be32(nla));
-
-		return nla_get_u32(nla);
-	case NLA_U64:
-		if (pt->network_byte_order)
-			return be64_to_cpu(nla_get_be64(nla));
-
-		return nla_get_u64(nla);
-	}
-
-	WARN_ON_ONCE(1);
-	return 0;
-}
-
 static int nla_validate_range_unsigned(const struct nla_policy *pt,
 				       const struct nlattr *nla,
 				       struct netlink_ext_ack *extack,
@@ -197,9 +174,13 @@ static int nla_validate_range_unsigned(const struct nla_policy *pt,
 		value = nla_get_u8(nla);
 		break;
 	case NLA_U16:
+		value = nla_get_u16(nla);
+		break;
 	case NLA_U32:
+		value = nla_get_u32(nla);
+		break;
 	case NLA_U64:
-		value = nla_get_attr_bo(pt, nla);
+		value = nla_get_u64(nla);
 		break;
 	case NLA_MSECS:
 		value = nla_get_u64(nla);
@@ -207,6 +188,12 @@ static int nla_validate_range_unsigned(const struct nla_policy *pt,
 	case NLA_BINARY:
 		value = nla_len(nla);
 		break;
+	case NLA_BE16:
+		value = ntohs(nla_get_be16(nla));
+		break;
+	case NLA_BE32:
+		value = ntohl(nla_get_be32(nla));
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -334,6 +321,8 @@ static int nla_validate_int_range(const struct nla_policy *pt,
 	case NLA_U64:
 	case NLA_MSECS:
 	case NLA_BINARY:
+	case NLA_BE16:
+	case NLA_BE32:
 		return nla_validate_range_unsigned(pt, nla, extack, validate);
 	case NLA_S8:
 	case NLA_S16:
diff --git a/lib/overflow_kunit.c b/lib/overflow_kunit.c
index 5369634701fa..b8556a2e7bb1 100644
--- a/lib/overflow_kunit.c
+++ b/lib/overflow_kunit.c
@@ -16,6 +16,34 @@
 #include <linux/types.h>
 #include <linux/vmalloc.h>
 
+#define SKIP(cond, reason)		do {			\
+	if (cond) {						\
+		kunit_skip(test, reason);			\
+		return;						\
+	}							\
+} while (0)
+
+/*
+ * Clang 11 and earlier generate unwanted libcalls for signed output
+ * on unsigned input.
+ */
+#if defined(CONFIG_CC_IS_CLANG) && __clang_major__ <= 11
+# define SKIP_SIGN_MISMATCH(t)	SKIP(t, "Clang 11 unwanted libcalls")
+#else
+# define SKIP_SIGN_MISMATCH(t)	do { } while (0)
+#endif
+
+/*
+ * Clang 13 and earlier generate unwanted libcalls for 64-bit tests on
+ * 32-bit hosts.
+ */
+#if defined(CONFIG_CC_IS_CLANG) && __clang_major__ <= 13 &&	\
+    BITS_PER_LONG != 64
+# define SKIP_64_ON_32(t)	SKIP(t, "Clang 13 unwanted libcalls")
+#else
+# define SKIP_64_ON_32(t)	do { } while (0)
+#endif
+
 #define DEFINE_TEST_ARRAY_TYPED(t1, t2, t)			\
 	static const struct test_ ## t1 ## _ ## t2 ## __ ## t {	\
 		t1 a;						\
@@ -94,7 +122,6 @@ DEFINE_TEST_ARRAY(u32) = {
 	{-4U, 5U, 1U, -9U, -20U, true, false, true},
 };
 
-#if BITS_PER_LONG == 64
 DEFINE_TEST_ARRAY(u64) = {
 	{0, 0, 0, 0, 0, false, false, false},
 	{1, 1, 2, 0, 1, false, false, false},
@@ -118,7 +145,6 @@ DEFINE_TEST_ARRAY(u64) = {
 	 false, true, false},
 	{-15ULL, 10ULL, -5ULL, -25ULL, -150ULL, false, false, true},
 };
-#endif
 
 DEFINE_TEST_ARRAY(s8) = {
 	{0, 0, 0, 0, 0, false, false, false},
@@ -194,7 +220,6 @@ DEFINE_TEST_ARRAY(s32) = {
 	{S32_MAX, S32_MAX, -2, 0, 1, true, false, true},
 };
 
-#if BITS_PER_LONG == 64
 DEFINE_TEST_ARRAY(s64) = {
 	{0, 0, 0, 0, 0, false, false, false},
 
@@ -223,7 +248,6 @@ DEFINE_TEST_ARRAY(s64) = {
 	{-128, -1, -129, -127, 128, false, false, false},
 	{0, -S64_MAX, -S64_MAX, S64_MAX, 0, false, false, false},
 };
-#endif
 
 #define check_one_op(t, fmt, op, sym, a, b, r, of) do {			\
 	int _a_orig = a, _a_bump = a + 1;				\
@@ -246,7 +270,7 @@ DEFINE_TEST_ARRAY(s64) = {
 
 #define DEFINE_TEST_FUNC_TYPED(n, t, fmt)				\
 static void do_test_ ## n(struct kunit *test, const struct test_ ## n *p) \
-{							   		\
+{									\
 	check_one_op(t, fmt, add, "+", p->a, p->b, p->sum, p->s_of);	\
 	check_one_op(t, fmt, add, "+", p->b, p->a, p->sum, p->s_of);	\
 	check_one_op(t, fmt, sub, "-", p->a, p->b, p->diff, p->d_of);	\
@@ -257,6 +281,12 @@ static void do_test_ ## n(struct kunit *test, const struct test_ ## n *p) \
 static void n ## _overflow_test(struct kunit *test) {			\
 	unsigned i;							\
 									\
+	SKIP_64_ON_32(__same_type(t, u64));				\
+	SKIP_64_ON_32(__same_type(t, s64));				\
+	SKIP_SIGN_MISMATCH(__same_type(n ## _tests[0].a, u32) &&	\
+			   __same_type(n ## _tests[0].b, u32) &&	\
+			   __same_type(n ## _tests[0].sum, int));	\
+									\
 	for (i = 0; i < ARRAY_SIZE(n ## _tests); ++i)			\
 		do_test_ ## n(test, &n ## _tests[i]);			\
 	kunit_info(test, "%zu %s arithmetic tests finished\n",		\
@@ -272,10 +302,8 @@ DEFINE_TEST_FUNC(u16, "%d");
 DEFINE_TEST_FUNC(s16, "%d");
 DEFINE_TEST_FUNC(u32, "%u");
 DEFINE_TEST_FUNC(s32, "%d");
-#if BITS_PER_LONG == 64
 DEFINE_TEST_FUNC(u64, "%llu");
 DEFINE_TEST_FUNC(s64, "%lld");
-#endif
 
 DEFINE_TEST_ARRAY_TYPED(u32, u32, u8) = {
 	{0, 0, 0, 0, 0, false, false, false},
@@ -715,13 +743,10 @@ static struct kunit_case overflow_test_cases[] = {
 	KUNIT_CASE(s16_s16__s16_overflow_test),
 	KUNIT_CASE(u32_u32__u32_overflow_test),
 	KUNIT_CASE(s32_s32__s32_overflow_test),
-/* Clang 13 and earlier generate unwanted libcalls on 32-bit. */
-#if BITS_PER_LONG == 64
 	KUNIT_CASE(u64_u64__u64_overflow_test),
 	KUNIT_CASE(s64_s64__s64_overflow_test),
-#endif
-	KUNIT_CASE(u32_u32__u8_overflow_test),
 	KUNIT_CASE(u32_u32__int_overflow_test),
+	KUNIT_CASE(u32_u32__u8_overflow_test),
 	KUNIT_CASE(u8_u8__int_overflow_test),
 	KUNIT_CASE(int_int__u8_overflow_test),
 	KUNIT_CASE(shift_sane_test),
diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c
index b358a74ed7ed..f2ba5787055a 100644
--- a/lib/test_rhashtable.c
+++ b/lib/test_rhashtable.c
@@ -369,18 +369,10 @@ static int __init test_rhltable(unsigned int entries)
 	pr_info("test %d random rhlist add/delete operations\n", entries);
 	for (j = 0; j < entries; j++) {
 		u32 i = prandom_u32_max(entries);
-		u32 prand = get_random_u32();
+		u32 prand = prandom_u32_max(4);
 
 		cond_resched();
 
-		if (prand == 0)
-			prand = get_random_u32();
-
-		if (prand & 1) {
-			prand >>= 1;
-			continue;
-		}
-
 		err = rhltable_remove(&rhlt, &rhl_test_objects[i].list_node, test_rht_params);
 		if (test_bit(i, obj_in_table)) {
 			clear_bit(i, obj_in_table);
@@ -393,35 +385,29 @@ static int __init test_rhltable(unsigned int entries)
 		}
 
 		if (prand & 1) {
-			prand >>= 1;
-			continue;
-		}
-
-		err = rhltable_insert(&rhlt, &rhl_test_objects[i].list_node, test_rht_params);
-		if (err == 0) {
-			if (WARN(test_and_set_bit(i, obj_in_table), "succeeded to insert same object %d", i))
-				continue;
-		} else {
-			if (WARN(!test_bit(i, obj_in_table), "failed to insert object %d", i))
-				continue;
-		}
-
-		if (prand & 1) {
-			prand >>= 1;
-			continue;
+			err = rhltable_insert(&rhlt, &rhl_test_objects[i].list_node, test_rht_params);
+			if (err == 0) {
+				if (WARN(test_and_set_bit(i, obj_in_table), "succeeded to insert same object %d", i))
+					continue;
+			} else {
+				if (WARN(!test_bit(i, obj_in_table), "failed to insert object %d", i))
+					continue;
+			}
 		}
 
-		i = prandom_u32_max(entries);
-		if (test_bit(i, obj_in_table)) {
-			err = rhltable_remove(&rhlt, &rhl_test_objects[i].list_node, test_rht_params);
-			WARN(err, "cannot remove element at slot %d", i);
-			if (err == 0)
-				clear_bit(i, obj_in_table);
-		} else {
-			err = rhltable_insert(&rhlt, &rhl_test_objects[i].list_node, test_rht_params);
-			WARN(err, "failed to insert object %d", i);
-			if (err == 0)
-				set_bit(i, obj_in_table);
+		if (prand & 2) {
+			i = prandom_u32_max(entries);
+			if (test_bit(i, obj_in_table)) {
+				err = rhltable_remove(&rhlt, &rhl_test_objects[i].list_node, test_rht_params);
+				WARN(err, "cannot remove element at slot %d", i);
+				if (err == 0)
+					clear_bit(i, obj_in_table);
+			} else {
+				err = rhltable_insert(&rhlt, &rhl_test_objects[i].list_node, test_rht_params);
+				WARN(err, "failed to insert object %d", i);
+				if (err == 0)
+					set_bit(i, obj_in_table);
+			}
 		}
 	}