Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/linville/wireless-next into for-davem

Documentation/nfc/nfc-hci.txt

@@ -178,3 +178,36 @@ ANY_GET_PARAMETER to the reader A gate to get information on the target
 that was discovered).
 
 Typically, such an event will be propagated to NFC Core from MSGRXWQ context.
+
+Error management
+----------------
+
+Errors that occur synchronously with the execution of an NFC Core request are
+simply returned as the execution result of the request. These are easy.
+
+Errors that occur asynchronously (e.g. in a background protocol handling thread)
+must be reported such that upper layers don't stay ignorant that something
+went wrong below and know that expected events will probably never happen.
+Handling of these errors is done as follows:
+
+- driver (pn544) fails to deliver an incoming frame: it stores the error such
+that any subsequent call to the driver will result in this error. Then it calls
+the standard nfc_shdlc_recv_frame() with a NULL argument to report the problem
+above. shdlc stores a EREMOTEIO sticky status, which will trigger SMW to
+report above in turn.
+
+- SMW is basically a background thread to handle incoming and outgoing shdlc
+frames. This thread will also check the shdlc sticky status and report to HCI
+when it discovers it is not able to run anymore because of an unrecoverable
+error that happened within shdlc or below. If the problem occurs during shdlc
+connection, the error is reported through the connect completion.
+
+- HCI: if an internal HCI error happens (frame is lost), or HCI is reported an
+error from a lower layer, HCI will either complete the currently executing
+command with that error, or notify NFC Core directly if no command is executing.
+
+- NFC Core: when NFC Core is notified of an error from below and polling is
+active, it will send a tag discovered event with an empty tag list to the user
+space to let it know that the poll operation will never be able to detect a tag.
+If polling is not active and the error was sticky, lower levels will return it
+at next invocation.

MAINTAINERS

@@ -3661,14 +3661,6 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi.git
 S:	Supported
 F:	drivers/net/wireless/iwlwifi/
 
-INTEL WIRELESS MULTICOMM 3200 WIFI (iwmc3200wifi)
-M:	Samuel Ortiz <[email protected]>
-M:	Intel Linux Wireless <[email protected]>
-L:	[email protected]
-S:	Supported
-W:	http://wireless.kernel.org/en/users/Drivers/iwmc3200wifi
-F:	drivers/net/wireless/iwmc3200wifi/
-
 INTEL MANAGEMENT ENGINE (mei)
 M:	Tomas Winkler <[email protected]>
 L:	[email protected]

drivers/bcma/bcma_private.h

@@ -10,6 +10,15 @@
 
 #define BCMA_CORE_SIZE		0x1000
 
+#define bcma_err(bus, fmt, ...) \
+	pr_err("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
+#define bcma_warn(bus, fmt, ...) \
+	pr_warn("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
+#define bcma_info(bus, fmt, ...) \
+	pr_info("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
+#define bcma_debug(bus, fmt, ...) \
+	pr_debug("bus%d: " fmt, (bus)->num, ##__VA_ARGS__)
+
 struct bcma_bus;
 
 /* main.c */

drivers/bcma/core.c

@@ -75,7 +75,7 @@ void bcma_core_set_clockmode(struct bcma_device *core,
 			udelay(10);
 		}
 		if (i)
-			pr_err("HT force timeout\n");
+			bcma_err(core->bus, "HT force timeout\n");
 		break;
 	case BCMA_CLKMODE_DYNAMIC:
 		bcma_set32(core, BCMA_CLKCTLST, ~BCMA_CLKCTLST_FORCEHT);
@@ -102,9 +102,9 @@ void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on)
 			udelay(10);
 		}
 		if (i)
-			pr_err("PLL enable timeout\n");
+			bcma_err(core->bus, "PLL enable timeout\n");
 	} else {
-		pr_warn("Disabling PLL not supported yet!\n");
+		bcma_warn(core->bus, "Disabling PLL not supported yet!\n");
 	}
 }
 EXPORT_SYMBOL_GPL(bcma_core_pll_ctl);
@@ -120,8 +120,8 @@ u32 bcma_core_dma_translation(struct bcma_device *core)
 		else
 			return BCMA_DMA_TRANSLATION_DMA32_CMT;
 	default:
-		pr_err("DMA translation unknown for host %d\n",
-		       core->bus->hosttype);
+		bcma_err(core->bus, "DMA translation unknown for host %d\n",
+			 core->bus->hosttype);
 	}
 	return BCMA_DMA_TRANSLATION_NONE;
 }

drivers/bcma/driver_chipcommon.c

@@ -44,7 +44,7 @@ void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
 	if (cc->capabilities & BCMA_CC_CAP_PMU)
 		bcma_pmu_init(cc);
 	if (cc->capabilities & BCMA_CC_CAP_PCTL)
-		pr_err("Power control not implemented!\n");
+		bcma_err(cc->core->bus, "Power control not implemented!\n");
 
 	if (cc->core->id.rev >= 16) {
 		if (cc->core->bus->sprom.leddc_on_time &&
@@ -137,8 +137,7 @@ void bcma_chipco_serial_init(struct bcma_drv_cc *cc)
 				       | BCMA_CC_CORECTL_UARTCLKEN);
 		}
 	} else {
-		pr_err("serial not supported on this device ccrev: 0x%x\n",
-		       ccrev);
+		bcma_err(cc->core->bus, "serial not supported on this device ccrev: 0x%x\n", ccrev);
 		return;
 	}