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Date:      Fri, 19 Oct 2012 13:26:41 +0000 (UTC)
From:      Ed Schouten <ed@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r241733 - in head/sys/dev: cxgb/ulp/tom cxgbe cxgbe/tom
Message-ID:  <201210191326.q9JDQfGu000947@svn.freebsd.org>

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Author: ed
Date: Fri Oct 19 13:26:40 2012
New Revision: 241733
URL: http://svn.freebsd.org/changeset/base/241733

Log:
  Prefer __containerof() over __member2struct().
  
  The former works better with qualifiers, but also properly type checks
  the input pointer.

Modified:
  head/sys/dev/cxgb/ulp/tom/cxgb_tom.h
  head/sys/dev/cxgbe/adapter.h
  head/sys/dev/cxgbe/t4_l2t.h
  head/sys/dev/cxgbe/t4_main.c
  head/sys/dev/cxgbe/tom/t4_tom.h

Modified: head/sys/dev/cxgb/ulp/tom/cxgb_tom.h
==============================================================================
--- head/sys/dev/cxgb/ulp/tom/cxgb_tom.h	Fri Oct 19 13:05:51 2012	(r241732)
+++ head/sys/dev/cxgb/ulp/tom/cxgb_tom.h	Fri Oct 19 13:26:40 2012	(r241733)
@@ -142,7 +142,8 @@ void t3_process_tid_release_list(void *d
 static inline struct tom_data *
 t3_tomdata(struct toedev *tod)
 {
-	return (member2struct(tom_data, tod, tod));
+
+	return (__containerof(tod, struct tom_data, tod));
 }
 
 union listen_entry {

Modified: head/sys/dev/cxgbe/adapter.h
==============================================================================
--- head/sys/dev/cxgbe/adapter.h	Fri Oct 19 13:05:51 2012	(r241732)
+++ head/sys/dev/cxgbe/adapter.h	Fri Oct 19 13:26:40 2012	(r241733)
@@ -435,7 +435,7 @@ static inline struct sge_rxq *
 iq_to_rxq(struct sge_iq *iq)
 {
 
-	return (member2struct(sge_rxq, iq, iq));
+	return (__containerof(iq, struct sge_rxq, iq));
 }
 
 
@@ -450,7 +450,7 @@ static inline struct sge_ofld_rxq *
 iq_to_ofld_rxq(struct sge_iq *iq)
 {
 
-	return (member2struct(sge_ofld_rxq, iq, iq));
+	return (__containerof(iq, struct sge_ofld_rxq, iq));
 }
 #endif
 

Modified: head/sys/dev/cxgbe/t4_l2t.h
==============================================================================
--- head/sys/dev/cxgbe/t4_l2t.h	Fri Oct 19 13:05:51 2012	(r241732)
+++ head/sys/dev/cxgbe/t4_l2t.h	Fri Oct 19 13:26:40 2012	(r241733)
@@ -94,7 +94,7 @@ int do_l2t_write_rpl(struct sge_iq *, co
 static inline void
 t4_l2t_release(struct l2t_entry *e)
 {
-	struct l2t_data *d = member2struct(l2t_data, l2tab[e->idx], e);
+	struct l2t_data *d = __containerof(e, struct l2t_data, l2tab[e->idx]);
 
 	if (atomic_fetchadd_int(&e->refcnt, -1) == 1)
 		atomic_add_int(&d->nfree, 1);

Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c	Fri Oct 19 13:05:51 2012	(r241732)
+++ head/sys/dev/cxgbe/t4_main.c	Fri Oct 19 13:26:40 2012	(r241733)
@@ -3057,8 +3057,8 @@ t4_register_an_handler(struct adapter *s
 static int
 fw_msg_not_handled(struct adapter *sc, const __be64 *rpl)
 {
-	__be64 *r = __DECONST(__be64 *, rpl);
-	struct cpl_fw6_msg *cpl = member2struct(cpl_fw6_msg, data, r);
+	const struct cpl_fw6_msg *cpl =
+	    __containerof(rpl, struct cpl_fw6_msg, data[0]);
 
 #ifdef INVARIANTS
 	panic("%s: fw_msg type %d", __func__, cpl->type);

Modified: head/sys/dev/cxgbe/tom/t4_tom.h
==============================================================================
--- head/sys/dev/cxgbe/tom/t4_tom.h	Fri Oct 19 13:05:51 2012	(r241732)
+++ head/sys/dev/cxgbe/tom/t4_tom.h	Fri Oct 19 13:26:40 2012	(r241733)
@@ -205,7 +205,7 @@ static inline struct tom_data *
 tod_td(struct toedev *tod)
 {
 
-	return (member2struct(tom_data, tod, tod));
+	return (__containerof(tod, struct tom_data, tod));
 }
 
 static inline struct adapter *



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