Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 22 insertions, 4 deletions

diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index da5b2de99ae..f5647b59a90 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -30,10 +30,15 @@ struct ethtool_cmd {
 				 * access it */
 	__u8	duplex;		/* Duplex, half or full */
 	__u8	port;		/* Which connector port */
-	__u8	phy_address;
+	__u8	phy_address;	/* MDIO PHY address (PRTAD for clause 45).
+				 * May be read-only or read-write
+				 * depending on the driver.
+				 */
 	__u8	transceiver;	/* Which transceiver to use */
 	__u8	autoneg;	/* Enable or disable autonegotiation */
-	__u8	mdio_support;
+	__u8	mdio_support;	/* MDIO protocols supported.  Read-only.
+				 * Not set by all drivers.
+				 */
 	__u32	maxtxpkt;	/* Tx pkts before generating tx int */
 	__u32	maxrxpkt;	/* Rx pkts before generating rx int */
 	__u16	speed_hi;       /* The forced speed (upper
@@ -59,6 +64,20 @@ static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
 	return (ep->speed_hi << 16) | ep->speed;
 }
 
+/* Device supports clause 22 register access to PHY or peripherals
+ * using the interface defined in <linux/mii.h>.  This should not be
+ * set if there are known to be no such peripherals present or if
+ * the driver only emulates clause 22 registers for compatibility.
+ */
+#define ETH_MDIO_SUPPORTS_C22	1
+
+/* Device supports clause 45 register access to PHY or peripherals
+ * using the interface defined in <linux/mii.h> and <linux/mdio.h>.
+ * This should not be set if there are known to be no such peripherals
+ * present.
+ */
+#define ETH_MDIO_SUPPORTS_C45	2
+
 #define ETHTOOL_FWVERS_LEN	32
 #define ETHTOOL_BUSINFO_LEN	32
 /* these strings are set to whatever the driver author decides... */
@@ -877,8 +896,7 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
  *
  * All operations are optional (i.e. the function pointer may be set
  * to %NULL) and callers must take this into account.  Callers must
- * hold the RTNL, except that for @get_drvinfo the caller may or may
- * not hold the RTNL.
+ * hold the RTNL lock.
  *
  * See the structures used by these operations for further documentation.
  *