[pull] master from torvalds:master

arch/powerpc/Kconfig

@@ -137,7 +137,7 @@ config PPC
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_HUGEPD			if HUGETLB_PAGE
 	select ARCH_HAS_KCOV
-	select ARCH_HAS_KERNEL_FPU_SUPPORT	if PPC_FPU
+	select ARCH_HAS_KERNEL_FPU_SUPPORT	if PPC64 && PPC_FPU
 	select ARCH_HAS_MEMBARRIER_CALLBACKS
 	select ARCH_HAS_MEMBARRIER_SYNC_CORE
 	select ARCH_HAS_MEMREMAP_COMPAT_ALIGN	if PPC_64S_HASH_MMU

arch/powerpc/include/asm/uaccess.h

@@ -92,9 +92,25 @@ __pu_failed:							\
 		: label)
 #endif
 
+#ifdef CONFIG_CC_IS_CLANG
+#define DS_FORM_CONSTRAINT "Z<>"
+#else
+#define DS_FORM_CONSTRAINT "YZ<>"
+#endif
+
 #ifdef __powerpc64__
+#ifdef CONFIG_PPC_KERNEL_PREFIXED
 #define __put_user_asm2_goto(x, ptr, label)			\
 	__put_user_asm_goto(x, ptr, label, "std")
+#else
+#define __put_user_asm2_goto(x, addr, label)			\
+	asm goto ("1: std%U1%X1 %0,%1	# put_user\n"		\
+		EX_TABLE(1b, %l2)				\
+		:						\
+		: "r" (x), DS_FORM_CONSTRAINT (*addr)		\
+		:						\
+		: label)
+#endif // CONFIG_PPC_KERNEL_PREFIXED
 #else /* __powerpc64__ */
 #define __put_user_asm2_goto(x, addr, label)			\
 	asm goto(					\
@@ -165,8 +181,19 @@ do {								\
 #endif
 
 #ifdef __powerpc64__
+#ifdef CONFIG_PPC_KERNEL_PREFIXED
 #define __get_user_asm2_goto(x, addr, label)			\
 	__get_user_asm_goto(x, addr, label, "ld")
+#else
+#define __get_user_asm2_goto(x, addr, label)			\
+	asm_goto_output(					\
+		"1:	ld%U1%X1 %0, %1	# get_user\n"		\
+		EX_TABLE(1b, %l2)				\
+		: "=r" (x)					\
+		: DS_FORM_CONSTRAINT (*addr)			\
+		:						\
+		: label)
+#endif // CONFIG_PPC_KERNEL_PREFIXED
 #else /* __powerpc64__ */
 #define __get_user_asm2_goto(x, addr, label)			\
 	asm_goto_output(					\

arch/powerpc/net/bpf_jit_comp32.c

@@ -900,6 +900,15 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, u32 *fimage, struct code
 
 			/* Get offset into TMP_REG */
 			EMIT(PPC_RAW_LI(tmp_reg, off));
+			/*
+			 * Enforce full ordering for operations with BPF_FETCH by emitting a 'sync'
+			 * before and after the operation.
+			 *
+			 * This is a requirement in the Linux Kernel Memory Model.
+			 * See __cmpxchg_u32() in asm/cmpxchg.h as an example.
+			 */
+			if ((imm & BPF_FETCH) && IS_ENABLED(CONFIG_SMP))
+				EMIT(PPC_RAW_SYNC());
 			tmp_idx = ctx->idx * 4;
 			/* load value from memory into r0 */
 			EMIT(PPC_RAW_LWARX(_R0, tmp_reg, dst_reg, 0));
@@ -953,6 +962,9 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, u32 *fimage, struct code
 
 			/* For the BPF_FETCH variant, get old data into src_reg */
 			if (imm & BPF_FETCH) {
+				/* Emit 'sync' to enforce full ordering */
+				if (IS_ENABLED(CONFIG_SMP))
+					EMIT(PPC_RAW_SYNC());
 				EMIT(PPC_RAW_MR(ret_reg, ax_reg));
 				if (!fp->aux->verifier_zext)
 					EMIT(PPC_RAW_LI(ret_reg - 1, 0)); /* higher 32-bit */

arch/powerpc/net/bpf_jit_comp64.c

@@ -846,6 +846,15 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, u32 *fimage, struct code
 
 			/* Get offset into TMP_REG_1 */
 			EMIT(PPC_RAW_LI(tmp1_reg, off));
+			/*
+			 * Enforce full ordering for operations with BPF_FETCH by emitting a 'sync'
+			 * before and after the operation.
+			 *
+			 * This is a requirement in the Linux Kernel Memory Model.
+			 * See __cmpxchg_u64() in asm/cmpxchg.h as an example.
+			 */
+			if ((imm & BPF_FETCH) && IS_ENABLED(CONFIG_SMP))
+				EMIT(PPC_RAW_SYNC());
 			tmp_idx = ctx->idx * 4;
 			/* load value from memory into TMP_REG_2 */
 			if (size == BPF_DW)
@@ -908,6 +917,9 @@ int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, u32 *fimage, struct code
 			PPC_BCC_SHORT(COND_NE, tmp_idx);
 
 			if (imm & BPF_FETCH) {
+				/* Emit 'sync' to enforce full ordering */
+				if (IS_ENABLED(CONFIG_SMP))
+					EMIT(PPC_RAW_SYNC());
 				EMIT(PPC_RAW_MR(ret_reg, _R0));
 				/*
 				 * Skip unnecessary zero-extension for 32-bit cmpxchg.

arch/powerpc/platforms/pseries/lparcfg.c

@@ -371,8 +371,8 @@ static int read_dt_lpar_name(struct seq_file *m)
 
 static void read_lpar_name(struct seq_file *m)
 {
-	if (read_rtas_lpar_name(m) && read_dt_lpar_name(m))
-		pr_err_once("Error can't get the LPAR name");
+	if (read_rtas_lpar_name(m))
+		read_dt_lpar_name(m);
 }
 
 #define SPLPAR_MAXLENGTH 1026*(sizeof(char))

drivers/firewire/packet-serdes-test.c

@@ -579,4 +579,5 @@ static struct kunit_suite packet_serdes_test_suite = {
 };
 kunit_test_suite(packet_serdes_test_suite);
 
+MODULE_DESCRIPTION("FireWire packet serialization/deserialization unit test suite");
 MODULE_LICENSE("GPL");

drivers/firewire/uapi-test.c

@@ -86,4 +86,5 @@ static struct kunit_suite structure_layout_test_suite = {
 };
 kunit_test_suite(structure_layout_test_suite);
 
+MODULE_DESCRIPTION("FireWire UAPI unit test suite");
 MODULE_LICENSE("GPL");

fs/smb/client/cifspdu.h

@@ -2574,7 +2574,7 @@ typedef struct {
 
 
 struct win_dev {
-	unsigned char type[8]; /* IntxCHR or IntxBLK or LnxFIFO*/
+	unsigned char type[8]; /* IntxCHR or IntxBLK or LnxFIFO or LnxSOCK */
 	__le64 major;
 	__le64 minor;
 } __attribute__((packed));

fs/smb/client/inode.c

@@ -606,6 +606,10 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
 				mnr = le64_to_cpu(*(__le64 *)(pbuf+16));
 				fattr->cf_rdev = MKDEV(mjr, mnr);
 			}
+		} else if (memcmp("LnxSOCK", pbuf, 8) == 0) {
+			cifs_dbg(FYI, "Socket\n");
+			fattr->cf_mode |= S_IFSOCK;
+			fattr->cf_dtype = DT_SOCK;
 		} else if (memcmp("IntxLNK", pbuf, 7) == 0) {
 			cifs_dbg(FYI, "Symlink\n");
 			fattr->cf_mode |= S_IFLNK;

fs/smb/client/smb2ops.c

@@ -4997,6 +4997,9 @@ static int __cifs_sfu_make_node(unsigned int xid, struct inode *inode,
 		pdev.major = cpu_to_le64(MAJOR(dev));
 		pdev.minor = cpu_to_le64(MINOR(dev));
 		break;
+	case S_IFSOCK:
+		strscpy(pdev.type, "LnxSOCK");
+		break;
 	case S_IFIFO:
 		strscpy(pdev.type, "LnxFIFO");
 		break;

fs/smb/common/cifs_arc4.c

@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include "arc4.h"
 
+MODULE_DESCRIPTION("ARC4 Cipher Algorithm");
 MODULE_LICENSE("GPL");
 
 int cifs_arc4_setkey(struct arc4_ctx *ctx, const u8 *in_key, unsigned int key_len)

fs/smb/common/cifs_md4.c

@@ -24,6 +24,7 @@
 #include <asm/byteorder.h>
 #include "md4.h"
 
+MODULE_DESCRIPTION("MD4 Message Digest Algorithm (RFC1320)");
 MODULE_LICENSE("GPL");
 
 static inline u32 lshift(u32 x, unsigned int s)

fs/xfs/libxfs/xfs_alloc.c

@@ -1008,13 +1008,12 @@ xfs_alloc_cur_finish(
 	struct xfs_alloc_arg	*args,
 	struct xfs_alloc_cur	*acur)
 {
-	struct xfs_agf __maybe_unused *agf = args->agbp->b_addr;
 	int			error;
 
 	ASSERT(acur->cnt && acur->bnolt);
 	ASSERT(acur->bno >= acur->rec_bno);
 	ASSERT(acur->bno + acur->len <= acur->rec_bno + acur->rec_len);
-	ASSERT(acur->rec_bno + acur->rec_len <= be32_to_cpu(agf->agf_length));
+	ASSERT(xfs_verify_agbext(args->pag, acur->rec_bno, acur->rec_len));
 
 	error = xfs_alloc_fixup_trees(acur->cnt, acur->bnolt, acur->rec_bno,
 				      acur->rec_len, acur->bno, acur->len, 0);
@@ -1217,7 +1216,6 @@ STATIC int			/* error */
 xfs_alloc_ag_vextent_exact(
 	xfs_alloc_arg_t	*args)	/* allocation argument structure */
 {
-	struct xfs_agf __maybe_unused *agf = args->agbp->b_addr;
 	struct xfs_btree_cur *bno_cur;/* by block-number btree cursor */
 	struct xfs_btree_cur *cnt_cur;/* by count btree cursor */
 	int		error;
@@ -1297,7 +1295,7 @@ xfs_alloc_ag_vextent_exact(
 	 */
 	cnt_cur = xfs_cntbt_init_cursor(args->mp, args->tp, args->agbp,
 					args->pag);
-	ASSERT(args->agbno + args->len <= be32_to_cpu(agf->agf_length));
+	ASSERT(xfs_verify_agbext(args->pag, args->agbno, args->len));
 	error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen, args->agbno,
 				      args->len, XFSA_FIXUP_BNO_OK);
 	if (error) {

fs/xfs/libxfs/xfs_attr.c

@@ -329,26 +329,20 @@ xfs_attr_calc_size(
 	return nblks;
 }
 
-/* Initialize transaction reservation for attr operations */
-void
-xfs_init_attr_trans(
-	struct xfs_da_args	*args,
-	struct xfs_trans_res	*tres,
-	unsigned int		*total)
+/* Initialize transaction reservation for an xattr set/replace/upsert */
+inline struct xfs_trans_res
+xfs_attr_set_resv(
+	const struct xfs_da_args	*args)
 {
-	struct xfs_mount	*mp = args->dp->i_mount;
-
-	if (args->value) {
-		tres->tr_logres = M_RES(mp)->tr_attrsetm.tr_logres +
-				 M_RES(mp)->tr_attrsetrt.tr_logres *
-				 args->total;
-		tres->tr_logcount = XFS_ATTRSET_LOG_COUNT;
-		tres->tr_logflags = XFS_TRANS_PERM_LOG_RES;
-		*total = args->total;
-	} else {
-		*tres = M_RES(mp)->tr_attrrm;
-		*total = XFS_ATTRRM_SPACE_RES(mp);
-	}
+	struct xfs_mount		*mp = args->dp->i_mount;
+	struct xfs_trans_res		ret = {
+		.tr_logres = M_RES(mp)->tr_attrsetm.tr_logres +
+			    M_RES(mp)->tr_attrsetrt.tr_logres * args->total,
+		.tr_logcount		= XFS_ATTRSET_LOG_COUNT,
+		.tr_logflags		= XFS_TRANS_PERM_LOG_RES,
+	};
+
+	return ret;
 }
 
 /*
@@ -1006,7 +1000,7 @@ xfs_attr_set(
 	struct xfs_trans_res	tres;
 	int			error, local;
 	int			rmt_blks = 0;
-	unsigned int		total;
+	unsigned int		total = 0;
 
 	ASSERT(!args->trans);
 
@@ -1033,18 +1027,22 @@ xfs_attr_set(
 
 		if (!local)
 			rmt_blks = xfs_attr3_rmt_blocks(mp, args->valuelen);
+
+		tres = xfs_attr_set_resv(args);
+		total = args->total;
 		break;
 	case XFS_ATTRUPDATE_REMOVE:
 		XFS_STATS_INC(mp, xs_attr_remove);
 		rmt_blks = xfs_attr3_max_rmt_blocks(mp);
+		tres = M_RES(mp)->tr_attrrm;
+		total = XFS_ATTRRM_SPACE_RES(mp);
 		break;
 	}
 
 	/*
 	 * Root fork attributes can use reserved data blocks for this
 	 * operation if necessary
 	 */
-	xfs_init_attr_trans(args, &tres, &total);
 	error = xfs_trans_alloc_inode(dp, &tres, total, 0, rsvd, &args->trans);
 	if (error)
 		return error;

fs/xfs/libxfs/xfs_attr.h

@@ -565,8 +565,7 @@ bool xfs_attr_check_namespace(unsigned int attr_flags);
 bool xfs_attr_namecheck(unsigned int attr_flags, const void *name,
 		size_t length);
 int xfs_attr_calc_size(struct xfs_da_args *args, int *local);
-void xfs_init_attr_trans(struct xfs_da_args *args, struct xfs_trans_res *tres,
-			 unsigned int *total);
+struct xfs_trans_res xfs_attr_set_resv(const struct xfs_da_args *args);
 
 /*
  * Check to see if the attr should be upgraded from non-existent or shortform to

fs/xfs/libxfs/xfs_bmap.c

@@ -6383,6 +6383,7 @@ xfs_bunmapi_range(
 		error = xfs_defer_finish(tpp);
 		if (error)
 			goto out;
+		cond_resched();
 	}
 out:
 	return error;

fs/xfs/libxfs/xfs_inode_buf.c

@@ -374,17 +374,37 @@ xfs_dinode_verify_fork(
 	/*
 	 * For fork types that can contain local data, check that the fork
 	 * format matches the size of local data contained within the fork.
-	 *
-	 * For all types, check that when the size says the should be in extent
-	 * or btree format, the inode isn't claiming it is in local format.
 	 */
 	if (whichfork == XFS_DATA_FORK) {
-		if (S_ISDIR(mode) || S_ISLNK(mode)) {
+		/*
+		 * A directory small enough to fit in the inode must be stored
+		 * in local format.  The directory sf <-> extents conversion
+		 * code updates the directory size accordingly.
+		 */
+		if (S_ISDIR(mode)) {
+			if (be64_to_cpu(dip->di_size) <= fork_size &&
+			    fork_format != XFS_DINODE_FMT_LOCAL)
+				return __this_address;
+		}
+
+		/*
+		 * A symlink with a target small enough to fit in the inode can
+		 * be stored in extents format if xattrs were added (thus
+		 * converting the data fork from shortform to remote format)
+		 * and then removed.
+		 */
+		if (S_ISLNK(mode)) {
 			if (be64_to_cpu(dip->di_size) <= fork_size &&
+			    fork_format != XFS_DINODE_FMT_EXTENTS &&
 			    fork_format != XFS_DINODE_FMT_LOCAL)
 				return __this_address;
 		}
 
+		/*
+		 * For all types, check that when the size says the fork should
+		 * be in extent or btree format, the inode isn't claiming to be
+		 * in local format.
+		 */
 		if (be64_to_cpu(dip->di_size) > fork_size &&
 		    fork_format == XFS_DINODE_FMT_LOCAL)
 			return __this_address;

fs/xfs/scrub/scrub.c

@@ -856,7 +856,7 @@ xfs_ioc_scrubv_metadata(
 	if (vec_bytes > PAGE_SIZE)
 		return -ENOMEM;
 
-	uvectors = (void __user *)(uintptr_t)head.svh_vectors;
+	uvectors = u64_to_user_ptr(head.svh_vectors);
 	vectors = memdup_user(uvectors, vec_bytes);
 	if (IS_ERR(vectors))
 		return PTR_ERR(vectors);

fs/xfs/scrub/xfarray.c

@@ -822,12 +822,14 @@ xfarray_sort_scan(
 
 	/* Grab the first folio that backs this array element. */
 	if (!si->folio) {
+		struct folio	*folio;
 		loff_t		next_pos;
 
-		si->folio = xfile_get_folio(si->array->xfile, idx_pos,
+		folio = xfile_get_folio(si->array->xfile, idx_pos,
 				si->array->obj_size, XFILE_ALLOC);
-		if (IS_ERR(si->folio))
-			return PTR_ERR(si->folio);
+		if (IS_ERR(folio))
+			return PTR_ERR(folio);
+		si->folio = folio;
 
 		si->first_folio_idx = xfarray_idx(si->array,
 				folio_pos(si->folio) + si->array->obj_size - 1);
@@ -1048,6 +1050,7 @@ xfarray_sort(
 
 out_free:
 	trace_xfarray_sort_stats(si, error);
+	xfarray_sort_scan_done(si);
 	kvfree(si);
 	return error;
 }