Merge tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree update from Greg KH:
 "Here's the large staging tree merge for 3.11-rc1

  Huge thing here is the Lustre client code.  Unfortunatly, due to it
  not building properly on a wide variety of different architectures
  (this was production code???), it is currently disabled from the build
  so as to not annoy people.

  Other than Lustre, there are loads of comedi patches, working to clean
  up that subsystem, iio updates and new drivers, and a load of cleanups
  from the OPW applicants in their quest to get a summer internship.

  All of these have been in the linux-next releases for a while (hence
  the Lustre code being disabled)"

Fixed up trivial conflict in drivers/staging/serqt_usb2/serqt_usb2.c due
to independent renamings in the staging driver cleanup and the USB
tree..

* tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (868 commits)
  Revert "Revert "Revert "staging/lustre: drop CONFIG_BROKEN dependency"""
  staging: rtl8192u: fix line length in r819xU_phy.h
  staging: rtl8192u: rename variables in r819xU_phy.h
  staging: rtl8192u: fix comments in r819xU_phy.h
  staging: rtl8192u: fix whitespace in r819xU_phy.h
  staging: rtl8192u: fix newlines in r819xU_phy.c
  staging: comedi: unioxx5: use comedi_alloc_spriv()
  staging: comedi: unioxx5: fix unioxx5_detach()
  silicom: checkpatch: errors caused by macros
  Staging: silicom: remove the board_t typedef in bpctl_mod.c
  Staging: silicom: capitalize labels in the bp_media_type enum
  Staging: silicom: remove bp_media_type enum typedef
  staging: rtl8192u: replace msleep(1) with usleep_range() in r819xU_phy.c
  staging: rtl8192u: rename dwRegRead and rtStatus in r819xU_phy.c
  staging: rtl8192u: replace __FUNCTION__ in r819xU_phy.c
  staging: rtl8192u: limit line size in r819xU_phy.c
  zram: allow request end to coincide with disksize
  staging: drm/imx: use generic irq chip unused field to block out invalid irqs
  staging: drm/imx: use generic irqchip
  staging: drm/imx: ipu-dmfc: use defines for ipu channel numbers
  ...

1 files changed, 407 insertions, 0 deletions

diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
new file mode 100644
index 000000000000..dedfecff95bc
--- /dev/null
+++ b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
@@ -0,0 +1,407 @@
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/obdclass/llog_swab.c
+ *
+ * Swabbing of llog datatypes (from disk or over the wire).
+ *
+ * Author: jacob berkman  <jacob@clusterfs.com>
+ */
+
+#define DEBUG_SUBSYSTEM S_LOG
+
+
+#include <lustre_log.h>
+
+static void print_llogd_body(struct llogd_body *d)
+{
+	CDEBUG(D_OTHER, "llogd body: %p\n", d);
+	CDEBUG(D_OTHER, "\tlgd_logid.lgl_oi: "DOSTID"\n",
+	       POSTID(&d->lgd_logid.lgl_oi));
+	CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen);
+	CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx);
+	CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags);
+	CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index);
+	CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index);
+	CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len);
+	CDEBUG(D_OTHER, "\tlgd_cur_offset: "LPX64"\n", d->lgd_cur_offset);
+}
+
+void lustre_swab_lu_fid(struct lu_fid *fid)
+{
+	__swab64s (&fid->f_seq);
+	__swab32s (&fid->f_oid);
+	__swab32s (&fid->f_ver);
+}
+EXPORT_SYMBOL(lustre_swab_lu_fid);
+
+void lustre_swab_ost_id(struct ost_id *oid)
+{
+	if (fid_seq_is_mdt0(oid->oi.oi_seq)) {
+		__swab64s(&oid->oi.oi_id);
+		__swab64s(&oid->oi.oi_seq);
+	} else {
+		lustre_swab_lu_fid(&oid->oi_fid);
+	}
+}
+EXPORT_SYMBOL(lustre_swab_ost_id);
+
+void lustre_swab_llog_id(struct llog_logid *log_id)
+{
+	__swab64s(&log_id->lgl_oi.oi.oi_id);
+	__swab64s(&log_id->lgl_oi.oi.oi_seq);
+        __swab32s(&log_id->lgl_ogen);
+}
+EXPORT_SYMBOL(lustre_swab_llog_id);
+
+void lustre_swab_llogd_body (struct llogd_body *d)
+{
+	ENTRY;
+	print_llogd_body(d);
+	lustre_swab_llog_id(&d->lgd_logid);
+	__swab32s (&d->lgd_ctxt_idx);
+	__swab32s (&d->lgd_llh_flags);
+	__swab32s (&d->lgd_index);
+	__swab32s (&d->lgd_saved_index);
+	__swab32s (&d->lgd_len);
+	__swab64s (&d->lgd_cur_offset);
+	print_llogd_body(d);
+	EXIT;
+}
+EXPORT_SYMBOL(lustre_swab_llogd_body);
+
+void lustre_swab_llogd_conn_body (struct llogd_conn_body *d)
+{
+	__swab64s (&d->lgdc_gen.mnt_cnt);
+	__swab64s (&d->lgdc_gen.conn_cnt);
+	lustre_swab_llog_id(&d->lgdc_logid);
+	__swab32s (&d->lgdc_ctxt_idx);
+}
+EXPORT_SYMBOL(lustre_swab_llogd_conn_body);
+
+void lustre_swab_ll_fid(struct ll_fid *fid)
+{
+	__swab64s (&fid->id);
+	__swab32s (&fid->generation);
+	__swab32s (&fid->f_type);
+}
+EXPORT_SYMBOL(lustre_swab_ll_fid);
+
+void lustre_swab_lu_seq_range(struct lu_seq_range *range)
+{
+	__swab64s (&range->lsr_start);
+	__swab64s (&range->lsr_end);
+	__swab32s (&range->lsr_index);
+	__swab32s (&range->lsr_flags);
+}
+EXPORT_SYMBOL(lustre_swab_lu_seq_range);
+
+void lustre_swab_llog_rec(struct llog_rec_hdr *rec)
+{
+	struct llog_rec_tail *tail = NULL;
+
+	__swab32s(&rec->lrh_len);
+	__swab32s(&rec->lrh_index);
+	__swab32s(&rec->lrh_type);
+	__swab32s(&rec->lrh_id);
+
+	switch (rec->lrh_type) {
+	case OST_SZ_REC:
+	{
+		struct llog_size_change_rec *lsc =
+			(struct llog_size_change_rec *)rec;
+
+		lustre_swab_ll_fid(&lsc->lsc_fid);
+		__swab32s(&lsc->lsc_ioepoch);
+		tail = &lsc->lsc_tail;
+		break;
+	}
+	case MDS_UNLINK_REC:
+	{
+		struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec;
+
+		__swab64s(&lur->lur_oid);
+		__swab32s(&lur->lur_oseq);
+		__swab32s(&lur->lur_count);
+		tail = &lur->lur_tail;
+		break;
+	}
+	case MDS_UNLINK64_REC:
+	{
+		struct llog_unlink64_rec *lur =
+			(struct llog_unlink64_rec *)rec;
+
+		lustre_swab_lu_fid(&lur->lur_fid);
+		__swab32s(&lur->lur_count);
+		tail = &lur->lur_tail;
+		break;
+	}
+	case CHANGELOG_REC:
+	{
+		struct llog_changelog_rec *cr = (struct llog_changelog_rec*)rec;
+
+		__swab16s(&cr->cr.cr_namelen);
+		__swab16s(&cr->cr.cr_flags);
+		__swab32s(&cr->cr.cr_type);
+		__swab64s(&cr->cr.cr_index);
+		__swab64s(&cr->cr.cr_prev);
+		__swab64s(&cr->cr.cr_time);
+		lustre_swab_lu_fid(&cr->cr.cr_tfid);
+		lustre_swab_lu_fid(&cr->cr.cr_pfid);
+		if (CHANGELOG_REC_EXTENDED(&cr->cr)) {
+			struct llog_changelog_ext_rec *ext =
+				(struct llog_changelog_ext_rec *)rec;
+
+			lustre_swab_lu_fid(&ext->cr.cr_sfid);
+			lustre_swab_lu_fid(&ext->cr.cr_spfid);
+			tail = &ext->cr_tail;
+		} else {
+			tail = &cr->cr_tail;
+		}
+		break;
+	}
+	case CHANGELOG_USER_REC:
+	{
+		struct llog_changelog_user_rec *cur =
+			(struct llog_changelog_user_rec*)rec;
+
+		__swab32s(&cur->cur_id);
+		__swab64s(&cur->cur_endrec);
+		tail = &cur->cur_tail;
+		break;
+	}
+
+	case MDS_SETATTR64_REC:
+	{
+		struct llog_setattr64_rec *lsr =
+			(struct llog_setattr64_rec *)rec;
+
+		lustre_swab_ost_id(&lsr->lsr_oi);
+		__swab32s(&lsr->lsr_uid);
+		__swab32s(&lsr->lsr_uid_h);
+		__swab32s(&lsr->lsr_gid);
+		__swab32s(&lsr->lsr_gid_h);
+		tail = &lsr->lsr_tail;
+		break;
+	}
+	case OBD_CFG_REC:
+		/* these are swabbed as they are consumed */
+		break;
+	case LLOG_HDR_MAGIC:
+	{
+		struct llog_log_hdr *llh = (struct llog_log_hdr *)rec;
+
+		__swab64s(&llh->llh_timestamp);
+		__swab32s(&llh->llh_count);
+		__swab32s(&llh->llh_bitmap_offset);
+		__swab32s(&llh->llh_flags);
+		__swab32s(&llh->llh_size);
+		__swab32s(&llh->llh_cat_idx);
+		tail = &llh->llh_tail;
+		break;
+	}
+	case LLOG_LOGID_MAGIC:
+	{
+		struct llog_logid_rec *lid = (struct llog_logid_rec *)rec;
+
+		lustre_swab_llog_id(&lid->lid_id);
+		tail = &lid->lid_tail;
+		break;
+	}
+	case LLOG_GEN_REC:
+	{
+		struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec;
+
+		__swab64s(&lgr->lgr_gen.mnt_cnt);
+		__swab64s(&lgr->lgr_gen.conn_cnt);
+		tail = &lgr->lgr_tail;
+		break;
+	}
+	case LLOG_PAD_MAGIC:
+		break;
+	default:
+		CERROR("Unknown llog rec type %#x swabbing rec %p\n",
+		       rec->lrh_type, rec);
+	}
+
+	if (tail) {
+		__swab32s(&tail->lrt_len);
+		__swab32s(&tail->lrt_index);
+	}
+}
+EXPORT_SYMBOL(lustre_swab_llog_rec);
+
+static void print_llog_hdr(struct llog_log_hdr *h)
+{
+	CDEBUG(D_OTHER, "llog header: %p\n", h);
+	CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index);
+	CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len);
+	CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type);
+	CDEBUG(D_OTHER, "\tllh_timestamp: "LPX64"\n", h->llh_timestamp);
+	CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count);
+	CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset);
+	CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags);
+	CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size);
+	CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx);
+	CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n", h->llh_tail.lrt_index);
+	CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", h->llh_tail.lrt_len);
+}
+
+void lustre_swab_llog_hdr (struct llog_log_hdr *h)
+{
+	ENTRY;
+	print_llog_hdr(h);
+
+	lustre_swab_llog_rec(&h->llh_hdr);
+
+	print_llog_hdr(h);
+	EXIT;
+}
+EXPORT_SYMBOL(lustre_swab_llog_hdr);
+
+static void print_lustre_cfg(struct lustre_cfg *lcfg)
+{
+	int i;
+	ENTRY;
+
+	if (!(libcfs_debug & D_OTHER)) /* don't loop on nothing */
+		return;
+	CDEBUG(D_OTHER, "lustre_cfg: %p\n", lcfg);
+	CDEBUG(D_OTHER, "\tlcfg->lcfg_version: %#x\n", lcfg->lcfg_version);
+
+	CDEBUG(D_OTHER, "\tlcfg->lcfg_command: %#x\n", lcfg->lcfg_command);
+	CDEBUG(D_OTHER, "\tlcfg->lcfg_num: %#x\n", lcfg->lcfg_num);
+	CDEBUG(D_OTHER, "\tlcfg->lcfg_flags: %#x\n", lcfg->lcfg_flags);
+	CDEBUG(D_OTHER, "\tlcfg->lcfg_nid: %s\n", libcfs_nid2str(lcfg->lcfg_nid));
+
+	CDEBUG(D_OTHER, "\tlcfg->lcfg_bufcount: %d\n", lcfg->lcfg_bufcount);
+	if (lcfg->lcfg_bufcount < LUSTRE_CFG_MAX_BUFCOUNT)
+		for (i = 0; i < lcfg->lcfg_bufcount; i++)
+			CDEBUG(D_OTHER, "\tlcfg->lcfg_buflens[%d]: %d\n",
+			       i, lcfg->lcfg_buflens[i]);
+	EXIT;
+}
+
+void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg)
+{
+	int i;
+	ENTRY;
+
+	__swab32s(&lcfg->lcfg_version);
+
+	if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) {
+		CERROR("not swabbing lustre_cfg version %#x (expecting %#x)\n",
+		       lcfg->lcfg_version, LUSTRE_CFG_VERSION);
+		EXIT;
+		return;
+	}
+
+	__swab32s(&lcfg->lcfg_command);
+	__swab32s(&lcfg->lcfg_num);
+	__swab32s(&lcfg->lcfg_flags);
+	__swab64s(&lcfg->lcfg_nid);
+	__swab32s(&lcfg->lcfg_bufcount);
+	for (i = 0; i < lcfg->lcfg_bufcount && i < LUSTRE_CFG_MAX_BUFCOUNT; i++)
+		__swab32s(&lcfg->lcfg_buflens[i]);
+
+	print_lustre_cfg(lcfg);
+	EXIT;
+	return;
+}
+EXPORT_SYMBOL(lustre_swab_lustre_cfg);
+
+/* used only for compatibility with old on-disk cfg_marker data */
+struct cfg_marker32 {
+	__u32   cm_step;
+	__u32   cm_flags;
+	__u32   cm_vers;
+	__u32   padding;
+	__u32   cm_createtime;
+	__u32   cm_canceltime;
+	char    cm_tgtname[MTI_NAME_MAXLEN];
+	char    cm_comment[MTI_NAME_MAXLEN];
+};
+
+#define MTI_NAMELEN32    (MTI_NAME_MAXLEN - \
+	(sizeof(struct cfg_marker) - sizeof(struct cfg_marker32)))
+
+void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size)
+{
+	struct cfg_marker32 *cm32 = (struct cfg_marker32*)marker;
+	ENTRY;
+
+	if (swab) {
+		__swab32s(&marker->cm_step);
+		__swab32s(&marker->cm_flags);
+		__swab32s(&marker->cm_vers);
+	}
+	if (size == sizeof(*cm32)) {
+		__u32 createtime, canceltime;
+		/* There was a problem with the original declaration of
+		 * cfg_marker on 32-bit systems because it used time_t as
+		 * a wire protocol structure, and didn't verify this in
+		 * wirecheck.  We now have to convert the offsets of the
+		 * later fields in order to work on 32- and 64-bit systems.
+		 *
+		 * Fortunately, the cm_comment field has no functional use
+		 * so can be sacrificed when converting the timestamp size.
+		 *
+		 * Overwrite fields from the end first, so they are not
+		 * clobbered, and use memmove() instead of memcpy() because
+		 * the source and target buffers overlap.  bug 16771 */
+		createtime = cm32->cm_createtime;
+		canceltime = cm32->cm_canceltime;
+		memmove(marker->cm_comment, cm32->cm_comment, MTI_NAMELEN32);
+		marker->cm_comment[MTI_NAMELEN32 - 1] = '\0';
+		memmove(marker->cm_tgtname, cm32->cm_tgtname,
+			sizeof(marker->cm_tgtname));
+		if (swab) {
+			__swab32s(&createtime);
+			__swab32s(&canceltime);
+		}
+		marker->cm_createtime = createtime;
+		marker->cm_canceltime = canceltime;
+		CDEBUG(D_CONFIG, "Find old cfg_marker(Srv32b,Clt64b) "
+		       "for target %s, converting\n",
+		       marker->cm_tgtname);
+	} else if (swab) {
+		__swab64s(&marker->cm_createtime);
+		__swab64s(&marker->cm_canceltime);
+	}
+
+	EXIT;
+	return;
+}
+EXPORT_SYMBOL(lustre_swab_cfg_marker);