* [RFC PATCH 07/19] pcmcia: re-work pcmcia_request_irq()
From: Dominik Brodowski @ 2010-03-21 23:07 UTC (permalink / raw)
To: linux-pcmcia
Cc: Dominik Brodowski, linux-bluetooth, netdev, linux-wireless,
linux-serial, alsa-devel, linux-usb, linux-ide
In-Reply-To: <20100321230617.GA24791@comet.dominikbrodowski.net>
Instead of the old pcmcia_request_irq() interface, drivers may now
choose between:
- calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq.
- use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will
clean up automatically on calls to pcmcia_disable_device() or
device ejection.
- drivers still not capable of IRQF_SHARED (or not telling us so) may
use the deprecated pcmcia_request_exclusive_irq() for the time
being; they might receive a shared IRQ nonetheless.
CC: linux-bluetooth@vger.kernel.org
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-usb@vger.kernel.org
CC: linux-ide@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---
Documentation/pcmcia/driver-changes.txt | 10 ++
drivers/ata/pata_pcmcia.c | 6 +-
drivers/bluetooth/bluecard_cs.c | 7 +-
drivers/bluetooth/bt3c_cs.c | 7 +-
drivers/bluetooth/btuart_cs.c | 7 +-
drivers/bluetooth/dtl1_cs.c | 7 +-
drivers/char/pcmcia/ipwireless/main.c | 11 +--
drivers/char/pcmcia/synclink_cs.c | 12 +--
drivers/ide/ide-cs.c | 8 +-
drivers/isdn/hardware/avm/avm_cs.c | 17 +--
drivers/isdn/hisax/avma1_cs.c | 12 +--
drivers/isdn/hisax/elsa_cs.c | 13 +--
drivers/isdn/hisax/sedlbauer_cs.c | 23 +---
drivers/isdn/hisax/teles_cs.c | 13 +--
drivers/net/pcmcia/3c574_cs.c | 6 +-
drivers/net/pcmcia/3c589_cs.c | 7 +-
drivers/net/pcmcia/axnet_cs.c | 13 +--
drivers/net/pcmcia/com20020_cs.c | 8 +-
drivers/net/pcmcia/fmvj18x_cs.c | 10 +--
drivers/net/pcmcia/ibmtr_cs.c | 8 +-
drivers/net/pcmcia/nmclan_cs.c | 6 +-
drivers/net/pcmcia/pcnet_cs.c | 8 +-
drivers/net/pcmcia/smc91c92_cs.c | 8 +-
drivers/net/pcmcia/xirc2ps_cs.c | 7 +-
drivers/net/wireless/airo_cs.c | 25 +---
drivers/net/wireless/atmel_cs.c | 28 +----
drivers/net/wireless/b43/pcmcia.c | 5 +-
drivers/net/wireless/hostap/hostap_cs.c | 29 +----
drivers/net/wireless/libertas/if_cs.c | 21 +---
drivers/net/wireless/orinoco/orinoco_cs.c | 13 +--
drivers/net/wireless/orinoco/spectrum_cs.c | 13 +--
drivers/net/wireless/ray_cs.c | 8 +-
drivers/net/wireless/wl3501_cs.c | 8 +-
drivers/parport/parport_cs.c | 8 +-
drivers/pcmcia/ds.c | 3 +-
drivers/pcmcia/pcmcia_resource.c | 137 +++++++++-------------
drivers/scsi/pcmcia/aha152x_stub.c | 6 +-
drivers/scsi/pcmcia/fdomain_stub.c | 6 +-
drivers/scsi/pcmcia/nsp_cs.c | 20 +---
drivers/scsi/pcmcia/qlogic_stub.c | 10 +-
drivers/scsi/pcmcia/sym53c500_cs.c | 6 +-
drivers/serial/serial_cs.c | 27 ++---
drivers/ssb/main.c | 2 +-
drivers/staging/comedi/drivers/cb_das16_cs.c | 26 +---
drivers/staging/comedi/drivers/das08_cs.c | 16 +--
drivers/staging/comedi/drivers/ni_daq_700.c | 23 +---
drivers/staging/comedi/drivers/ni_daq_dio24.c | 23 +---
drivers/staging/comedi/drivers/ni_labpc_cs.c | 24 +---
drivers/staging/comedi/drivers/ni_mio_cs.c | 9 +-
drivers/staging/comedi/drivers/quatech_daqp_cs.c | 22 +---
drivers/staging/netwave/netwave_cs.c | 8 +-
drivers/staging/wavelan/wavelan_cs.c | 15 +--
drivers/staging/wlags49_h2/wl_cs.c | 9 +-
drivers/usb/host/sl811_cs.c | 18 +--
include/pcmcia/cs.h | 7 -
include/pcmcia/ds.h | 11 ++-
sound/pcmcia/pdaudiocf/pdaudiocf.c | 9 +-
sound/pcmcia/vx/vxpocket.c | 8 +-
58 files changed, 244 insertions(+), 593 deletions(-)
diff --git a/Documentation/pcmcia/driver-changes.txt b/Documentation/pcmcia/driver-changes.txt
index 446f43b..3268a9a 100644
--- a/Documentation/pcmcia/driver-changes.txt
+++ b/Documentation/pcmcia/driver-changes.txt
@@ -1,4 +1,14 @@
This file details changes in 2.6 which affect PCMCIA card driver authors:
+* New IRQ request rules (as of 2.6.35)
+ Instead of the old pcmcia_request_irq() interface, drivers may now
+ choose between:
+ - calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq.
+ - use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will
+ clean up automatically on calls to pcmcia_disable_device() or
+ device ejection.
+ - drivers still not capable of IRQF_SHARED (or not telling us so) may
+ use the deprecated pcmcia_request_exclusive_irq() for the time
+ being; they might receive a shared IRQ nonetheless.
* no cs_error / CS_CHECK / CONFIG_PCMCIA_DEBUG (as of 2.6.33)
Instead of the cs_error() callback or the CS_CHECK() macro, please use
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index 147de2f..1336216 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -267,7 +267,6 @@ static int pcmcia_init_one(struct pcmcia_device *pdev)
pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
pdev->io.IOAddrLines = 3;
- pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
pdev->conf.Attributes = CONF_ENABLE_IRQ;
pdev->conf.IntType = INT_MEMORY_AND_IO;
@@ -292,8 +291,7 @@ static int pcmcia_init_one(struct pcmcia_device *pdev)
}
io_base = pdev->io.BasePort1;
ctl_base = stk->ctl_base;
- ret = pcmcia_request_irq(pdev, &pdev->irq);
- if (ret)
+ if (!pdev->irq)
goto failed;
ret = pcmcia_request_configuration(pdev, &pdev->conf);
@@ -343,7 +341,7 @@ static int pcmcia_init_one(struct pcmcia_device *pdev)
}
/* activate */
- ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt,
+ ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt,
IRQF_SHARED, &pcmcia_sht);
if (ret)
goto failed;
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index d9bf87c..a34653d 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -869,9 +869,6 @@ static int bluecard_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
-
- link->irq.Handler = bluecard_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -908,9 +905,9 @@ static int bluecard_config(struct pcmcia_device *link)
if (i != 0)
goto failed;
- i = pcmcia_request_irq(link, &link->irq);
+ i = pcmcia_request_irq(link, bluecard_interrupt);
if (i != 0)
- link->irq.AssignedIRQ = 0;
+ goto failed;
i = pcmcia_request_configuration(link, &link->conf);
if (i != 0)
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index 027cb8b..1ad9694 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -661,9 +661,6 @@ static int bt3c_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
-
- link->irq.Handler = bt3c_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -743,9 +740,9 @@ static int bt3c_config(struct pcmcia_device *link)
goto failed;
found_port:
- i = pcmcia_request_irq(link, &link->irq);
+ i = pcmcia_request_irq(link, &bt3c_interrupt);
if (i != 0)
- link->irq.AssignedIRQ = 0;
+ goto failed;
i = pcmcia_request_configuration(link, &link->conf);
if (i != 0)
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index 60c0953..1073d66 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -590,9 +590,6 @@ static int btuart_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
-
- link->irq.Handler = btuart_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -672,9 +669,9 @@ static int btuart_config(struct pcmcia_device *link)
goto failed;
found_port:
- i = pcmcia_request_irq(link, &link->irq);
+ i = pcmcia_request_irq(link, btuart_interrupt);
if (i != 0)
- link->irq.AssignedIRQ = 0;
+ goto failed;
i = pcmcia_request_configuration(link, &link->conf);
if (i != 0)
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 1778831..3d72afd 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -575,9 +575,6 @@ static int dtl1_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
-
- link->irq.Handler = dtl1_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -621,9 +618,9 @@ static int dtl1_config(struct pcmcia_device *link)
if (pcmcia_loop_config(link, dtl1_confcheck, NULL) < 0)
goto failed;
- i = pcmcia_request_irq(link, &link->irq);
+ i = pcmcia_request_irq(link, dtl1_interrupt);
if (i != 0)
- link->irq.AssignedIRQ = 0;
+ goto failed;
i = pcmcia_request_configuration(link, &link->conf);
if (i != 0)
diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
index dff24da..2237890 100644
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ b/drivers/char/pcmcia/ipwireless/main.c
@@ -195,9 +195,6 @@ static int config_ipwireless(struct ipw_dev *ipw)
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = ipwireless_interrupt;
-
INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
ipwireless_init_hardware_v1(ipw->hardware, link->io.BasePort1,
@@ -205,8 +202,7 @@ static int config_ipwireless(struct ipw_dev *ipw)
ipw->is_v2_card, signalled_reboot_callback,
ipw);
- ret = pcmcia_request_irq(link, &link->irq);
-
+ ret = pcmcia_request_irq(link, ipwireless_interrupt);
if (ret != 0)
goto exit;
@@ -217,7 +213,7 @@ static int config_ipwireless(struct ipw_dev *ipw)
(unsigned int) link->io.BasePort1,
(unsigned int) (link->io.BasePort1 +
link->io.NumPorts1 - 1),
- (unsigned int) link->irq.AssignedIRQ);
+ (unsigned int) link->irq);
if (ipw->attr_memory && ipw->common_memory)
printk(KERN_INFO IPWIRELESS_PCCARD_NAME
": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
@@ -271,8 +267,6 @@ exit:
static void release_ipwireless(struct ipw_dev *ipw)
{
- pcmcia_disable_device(ipw->link);
-
if (ipw->common_memory) {
release_mem_region(ipw->request_common_memory.Base,
ipw->request_common_memory.Size);
@@ -288,7 +282,6 @@ static void release_ipwireless(struct ipw_dev *ipw)
if (ipw->attr_memory)
pcmcia_release_window(ipw->link, ipw->handle_attr_memory);
- /* Break the link with Card Services */
pcmcia_disable_device(ipw->link);
}
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index c31a0d9..027690b 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -552,10 +552,6 @@ static int mgslpc_probe(struct pcmcia_device *link)
/* Initialize the struct pcmcia_device structure */
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
link->conf.Attributes = 0;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -608,9 +604,7 @@ static int mgslpc_config(struct pcmcia_device *link)
link->conf.ConfigIndex = 8;
link->conf.Present = PRESENT_OPTION;
- link->irq.Handler = mgslpc_isr;
-
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, mgslpc_isr);
if (ret)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
@@ -618,7 +612,7 @@ static int mgslpc_config(struct pcmcia_device *link)
goto failed;
info->io_base = link->io.BasePort1;
- info->irq_level = link->irq.AssignedIRQ;
+ info->irq_level = link->irq;
/* add to linked list of devices */
sprintf(info->node.dev_name, "mgslpc0");
@@ -628,7 +622,7 @@ static int mgslpc_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x:",
info->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c
index ab87e4f..afd1ab7 100644
--- a/drivers/ide/ide-cs.c
+++ b/drivers/ide/ide-cs.c
@@ -102,7 +102,6 @@ static int ide_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
link->io.IOAddrLines = 3;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -285,8 +284,7 @@ static int ide_config(struct pcmcia_device *link)
io_base = link->io.BasePort1;
ctl_base = stk->ctl_base;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
@@ -299,11 +297,11 @@ static int ide_config(struct pcmcia_device *link)
if (is_kme)
outb(0x81, ctl_base+1);
- host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link);
+ host = idecs_register(io_base, ctl_base, link->irq, link);
if (host == NULL && link->io.NumPorts1 == 0x20) {
outb(0x02, ctl_base + 0x10);
host = idecs_register(io_base + 0x10, ctl_base + 0x10,
- link->irq.AssignedIRQ, link);
+ link->irq, link);
}
if (host == NULL)
diff --git a/drivers/isdn/hardware/avm/avm_cs.c b/drivers/isdn/hardware/avm/avm_cs.c
index 94b796d..0d485f6 100644
--- a/drivers/isdn/hardware/avm/avm_cs.c
+++ b/drivers/isdn/hardware/avm/avm_cs.c
@@ -107,9 +107,6 @@ static int avmcs_probe(struct pcmcia_device *p_dev)
p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
p_dev->io.NumPorts2 = 0;
- /* Interrupt setup */
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
-
/* General socket configuration */
p_dev->conf.Attributes = CONF_ENABLE_IRQ;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
@@ -172,7 +169,7 @@ static int avmcs_configcheck(struct pcmcia_device *p_dev,
static int avmcs_config(struct pcmcia_device *link)
{
local_info_t *dev;
- int i;
+ int i = -1;
char devname[128];
int cardtype;
int (*addcard)(unsigned int port, unsigned irq);
@@ -190,11 +187,7 @@ static int avmcs_config(struct pcmcia_device *link)
return -ENODEV;
do {
- /*
- * allocate an interrupt line
- */
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0) {
+ if (!link->irq) {
/* undo */
pcmcia_disable_device(link);
break;
@@ -249,9 +242,9 @@ static int avmcs_config(struct pcmcia_device *link)
default:
case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
}
- if ((i = (*addcard)(link->io.BasePort1, link->irq.AssignedIRQ)) < 0) {
+ if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) {
printk(KERN_ERR "avm_cs: failed to add AVM-%s-Controller at i/o %#x, irq %d\n",
- dev->node.dev_name, link->io.BasePort1, link->irq.AssignedIRQ);
+ dev->node.dev_name, link->io.BasePort1, link->irq);
avmcs_release(link);
return -ENODEV;
}
@@ -270,7 +263,7 @@ static int avmcs_config(struct pcmcia_device *link)
static void avmcs_release(struct pcmcia_device *link)
{
- b1pcmcia_delcard(link->io.BasePort1, link->irq.AssignedIRQ);
+ b1pcmcia_delcard(link->io.BasePort1, link->irq);
pcmcia_disable_device(link);
} /* avmcs_release */
diff --git a/drivers/isdn/hisax/avma1_cs.c b/drivers/isdn/hisax/avma1_cs.c
index e5deb15..96d0b5d 100644
--- a/drivers/isdn/hisax/avma1_cs.c
+++ b/drivers/isdn/hisax/avma1_cs.c
@@ -119,9 +119,6 @@ static int avma1cs_probe(struct pcmcia_device *p_dev)
p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_16;
p_dev->io.IOAddrLines = 5;
- /* Interrupt setup */
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
-
/* General socket configuration */
p_dev->conf.Attributes = CONF_ENABLE_IRQ;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
@@ -177,7 +174,7 @@ static int avma1cs_configcheck(struct pcmcia_device *p_dev,
static int avma1cs_config(struct pcmcia_device *link)
{
local_info_t *dev;
- int i;
+ int i = -1;
char devname[128];
IsdnCard_t icard;
int busy = 0;
@@ -197,8 +194,7 @@ static int avma1cs_config(struct pcmcia_device *link)
/*
* allocate an interrupt line
*/
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0) {
+ if (!link->irq) {
/* undo */
pcmcia_disable_device(link);
break;
@@ -230,9 +226,9 @@ static int avma1cs_config(struct pcmcia_device *link)
}
printk(KERN_NOTICE "avma1_cs: checking at i/o %#x, irq %d\n",
- link->io.BasePort1, link->irq.AssignedIRQ);
+ link->io.BasePort1, link->irq);
- icard.para[0] = link->irq.AssignedIRQ;
+ icard.para[0] = link->irq;
icard.para[1] = link->io.BasePort1;
icard.protocol = isdnprot;
icard.typ = ISDN_CTYPE_A1_PCMCIA;
diff --git a/drivers/isdn/hisax/elsa_cs.c b/drivers/isdn/hisax/elsa_cs.c
index c9a30b1..242c434 100644
--- a/drivers/isdn/hisax/elsa_cs.c
+++ b/drivers/isdn/hisax/elsa_cs.c
@@ -136,10 +136,6 @@ static int elsa_cs_probe(struct pcmcia_device *link)
local->cardnr = -1;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -223,11 +219,8 @@ static int elsa_cs_config(struct pcmcia_device *link)
if (i != 0)
goto failed;
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0) {
- link->irq.AssignedIRQ = 0;
+ if (!link->irq)
goto failed;
- }
i = pcmcia_request_configuration(link, &link->conf);
if (i != 0)
@@ -244,7 +237,7 @@ static int elsa_cs_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x: ",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
@@ -253,7 +246,7 @@ static int elsa_cs_config(struct pcmcia_device *link)
link->io.BasePort2+link->io.NumPorts2-1);
printk("\n");
- icard.para[0] = link->irq.AssignedIRQ;
+ icard.para[0] = link->irq;
icard.para[1] = link->io.BasePort1;
icard.protocol = protocol;
icard.typ = ISDN_CTYPE_ELSA_PCMCIA;
diff --git a/drivers/isdn/hisax/sedlbauer_cs.c b/drivers/isdn/hisax/sedlbauer_cs.c
index 7836ec3..967371b 100644
--- a/drivers/isdn/hisax/sedlbauer_cs.c
+++ b/drivers/isdn/hisax/sedlbauer_cs.c
@@ -143,10 +143,6 @@ static int sedlbauer_probe(struct pcmcia_device *link)
local->p_dev = link;
link->priv = local;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -227,9 +223,7 @@ static int sedlbauer_config_check(struct pcmcia_device *p_dev,
else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
- /* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -313,17 +307,6 @@ static int sedlbauer_config(struct pcmcia_device *link)
goto failed;
/*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
-
- /*
This actually configures the PCMCIA socket -- setting up
the I/O windows and the interrupt mapping, and putting the
card and host interface into "Memory and IO" mode.
@@ -346,7 +329,7 @@ static int sedlbauer_config(struct pcmcia_device *link)
if (link->conf.Vpp)
printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
@@ -358,7 +341,7 @@ static int sedlbauer_config(struct pcmcia_device *link)
req->Base+req->Size-1);
printk("\n");
- icard.para[0] = link->irq.AssignedIRQ;
+ icard.para[0] = link->irq;
icard.para[1] = link->io.BasePort1;
icard.protocol = protocol;
icard.typ = ISDN_CTYPE_SEDLBAUER_PCMCIA;
diff --git a/drivers/isdn/hisax/teles_cs.c b/drivers/isdn/hisax/teles_cs.c
index b0c5976..75e075c 100644
--- a/drivers/isdn/hisax/teles_cs.c
+++ b/drivers/isdn/hisax/teles_cs.c
@@ -126,10 +126,6 @@ static int teles_probe(struct pcmcia_device *link)
local->p_dev = link;
link->priv = local;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -213,11 +209,8 @@ static int teles_cs_config(struct pcmcia_device *link)
if (i != 0)
goto cs_failed;
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0) {
- link->irq.AssignedIRQ = 0;
+ if (!link->irq)
goto cs_failed;
- }
i = pcmcia_request_configuration(link, &link->conf);
if (i != 0)
@@ -234,7 +227,7 @@ static int teles_cs_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x:",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
@@ -243,7 +236,7 @@ static int teles_cs_config(struct pcmcia_device *link)
link->io.BasePort2+link->io.NumPorts2-1);
printk("\n");
- icard.para[0] = link->irq.AssignedIRQ;
+ icard.para[0] = link->irq;
icard.para[1] = link->io.BasePort1;
icard.protocol = protocol;
icard.typ = ISDN_CTYPE_TELESPCMCIA;
diff --git a/drivers/net/pcmcia/3c574_cs.c b/drivers/net/pcmcia/3c574_cs.c
index 61e33cf..839a29c 100644
--- a/drivers/net/pcmcia/3c574_cs.c
+++ b/drivers/net/pcmcia/3c574_cs.c
@@ -282,8 +282,6 @@ static int tc574_probe(struct pcmcia_device *link)
spin_lock_init(&lp->window_lock);
link->io.NumPorts1 = 32;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = &el3_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 1;
@@ -352,7 +350,7 @@ static int tc574_config(struct pcmcia_device *link)
if (i != 0)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, el3_interrupt);
if (ret)
goto failed;
@@ -360,7 +358,7 @@ static int tc574_config(struct pcmcia_device *link)
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
ioaddr = dev->base_addr;
diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c
index 091e0b0..405d772 100644
--- a/drivers/net/pcmcia/3c589_cs.c
+++ b/drivers/net/pcmcia/3c589_cs.c
@@ -194,8 +194,7 @@ static int tc589_probe(struct pcmcia_device *link)
spin_lock_init(&lp->lock);
link->io.NumPorts1 = 16;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = &el3_interrupt;
+
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 1;
@@ -271,7 +270,7 @@ static int tc589_config(struct pcmcia_device *link)
if (i != 0)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, el3_interrupt);
if (ret)
goto failed;
@@ -279,7 +278,7 @@ static int tc589_config(struct pcmcia_device *link)
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
ioaddr = dev->base_addr;
EL3WINDOW(0);
diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c
index 09291e6..41d2def 100644
--- a/drivers/net/pcmcia/axnet_cs.c
+++ b/drivers/net/pcmcia/axnet_cs.c
@@ -169,7 +169,6 @@ static int axnet_probe(struct pcmcia_device *link)
info = PRIV(dev);
info->p_dev = link;
link->priv = dev;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -266,12 +265,9 @@ static int try_io_port(struct pcmcia_device *link)
int j, ret;
if (link->io.NumPorts1 == 32) {
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
- if (link->io.NumPorts2 > 0) {
- /* for master/slave multifunction cards */
+ /* for master/slave multifunction cards */
+ if (link->io.NumPorts2 > 0)
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
- link->irq.Attributes =
- IRQ_TYPE_DYNAMIC_SHARING;
- }
} else {
/* This should be two 16-port windows */
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
@@ -337,8 +333,7 @@ static int axnet_config(struct pcmcia_device *link)
if (ret != 0)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
if (link->io.NumPorts2 == 8) {
@@ -350,7 +345,7 @@ static int axnet_config(struct pcmcia_device *link)
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
if (!get_prom(link)) {
diff --git a/drivers/net/pcmcia/com20020_cs.c b/drivers/net/pcmcia/com20020_cs.c
index 21d9c9d..278438b 100644
--- a/drivers/net/pcmcia/com20020_cs.c
+++ b/drivers/net/pcmcia/com20020_cs.c
@@ -163,7 +163,6 @@ static int com20020_probe(struct pcmcia_device *p_dev)
p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
p_dev->io.NumPorts1 = 16;
p_dev->io.IOAddrLines = 16;
- p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
p_dev->conf.Attributes = CONF_ENABLE_IRQ;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
@@ -275,15 +274,14 @@ static int com20020_config(struct pcmcia_device *link)
dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr);
dev_dbg(&link->dev, "request IRQ %d\n",
- link->irq.AssignedIRQ);
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0)
+ link->irq);
+ if (!link->irq)
{
dev_dbg(&link->dev, "requestIRQ failed totally!\n");
goto failed;
}
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
diff --git a/drivers/net/pcmcia/fmvj18x_cs.c b/drivers/net/pcmcia/fmvj18x_cs.c
index b9dc80b..31f1a03 100644
--- a/drivers/net/pcmcia/fmvj18x_cs.c
+++ b/drivers/net/pcmcia/fmvj18x_cs.c
@@ -254,10 +254,6 @@ static int fmvj18x_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 5;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = fjn_interrupt;
-
/* General socket configuration */
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -425,8 +421,6 @@ static int fmvj18x_config(struct pcmcia_device *link)
}
if (link->io.NumPorts2 != 0) {
- link->irq.Attributes =
- IRQ_TYPE_DYNAMIC_SHARING;
ret = mfc_try_io_port(link);
if (ret != 0) goto failed;
} else if (cardtype == UNGERMANN) {
@@ -437,14 +431,14 @@ static int fmvj18x_config(struct pcmcia_device *link)
if (ret)
goto failed;
}
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, fjn_interrupt);
if (ret)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
if (link->io.BasePort2 != 0) {
diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c
index 37f4a6f..0225cdf 100644
--- a/drivers/net/pcmcia/ibmtr_cs.c
+++ b/drivers/net/pcmcia/ibmtr_cs.c
@@ -156,8 +156,6 @@ static int __devinit ibmtr_attach(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 4;
link->io.IOAddrLines = 16;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.Handler = ibmtr_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
@@ -238,11 +236,11 @@ static int __devinit ibmtr_config(struct pcmcia_device *link)
}
dev->base_addr = link->io.BasePort1;
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_exclusive_irq(link, ibmtr_interrupt);
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
- ti->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
+ ti->irq = link->irq;
ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq);
/* Allocate the MMIO memory window */
diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c
index c717b14..b779e3a 100644
--- a/drivers/net/pcmcia/nmclan_cs.c
+++ b/drivers/net/pcmcia/nmclan_cs.c
@@ -463,8 +463,6 @@ static int nmclan_probe(struct pcmcia_device *link)
link->io.NumPorts1 = 32;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 5;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.Handler = mace_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 1;
@@ -652,14 +650,14 @@ static int nmclan_config(struct pcmcia_device *link)
ret = pcmcia_request_io(link, &link->io);
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_exclusive_irq(link, mace_interrupt);
if (ret)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
ioaddr = dev->base_addr;
diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c
index 776cad2..22a3350 100644
--- a/drivers/net/pcmcia/pcnet_cs.c
+++ b/drivers/net/pcmcia/pcnet_cs.c
@@ -265,7 +265,6 @@ static int pcnet_probe(struct pcmcia_device *link)
info->p_dev = link;
link->priv = dev;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -489,8 +488,6 @@ static int try_io_port(struct pcmcia_device *link)
if (link->io.NumPorts2 > 0) {
/* for master/slave multifunction cards */
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
- link->irq.Attributes =
- IRQ_TYPE_DYNAMIC_SHARING;
}
} else {
/* This should be two 16-port windows */
@@ -560,8 +557,7 @@ static int pcnet_config(struct pcmcia_device *link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
if (link->io.NumPorts2 == 8) {
@@ -575,7 +571,7 @@ static int pcnet_config(struct pcmcia_device *link)
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
if (info->flags & HAS_MISC_REG) {
if ((if_port == 1) || (if_port == 2))
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index 5adc662..1257d10 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -329,8 +329,6 @@ static int smc91c92_probe(struct pcmcia_device *link)
link->io.NumPorts1 = 16;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 4;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = &smc_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -453,7 +451,6 @@ static int mhz_mfc_config(struct pcmcia_device *link)
link->conf.Attributes |= CONF_ENABLE_SPKR;
link->conf.Status = CCSR_AUDIO_ENA;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->io.IOAddrLines = 16;
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts2 = 8;
@@ -651,7 +648,6 @@ static int osi_config(struct pcmcia_device *link)
link->conf.Attributes |= CONF_ENABLE_SPKR;
link->conf.Status = CCSR_AUDIO_ENA;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->io.NumPorts1 = 64;
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts2 = 8;
@@ -876,7 +872,7 @@ static int smc91c92_config(struct pcmcia_device *link)
if (i)
goto config_failed;
- i = pcmcia_request_irq(link, &link->irq);
+ i = pcmcia_request_irq(link, smc_interrupt);
if (i)
goto config_failed;
i = pcmcia_request_configuration(link, &link->conf);
@@ -886,7 +882,7 @@ static int smc91c92_config(struct pcmcia_device *link)
if (smc->manfid == MANFID_MOTOROLA)
mot_config(link);
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
if ((if_port >= 0) && (if_port <= 2))
dev->if_port = if_port;
diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c
index 4d1802e..c9e7d7d 100644
--- a/drivers/net/pcmcia/xirc2ps_cs.c
+++ b/drivers/net/pcmcia/xirc2ps_cs.c
@@ -555,7 +555,6 @@ xirc2ps_probe(struct pcmcia_device *link)
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 1;
- link->irq.Handler = xirc2ps_interrupt;
/* Fill in card specific entries */
dev->netdev_ops = &netdev_ops;
@@ -841,7 +840,6 @@ xirc2ps_config(struct pcmcia_device * link)
link->conf.Attributes |= CONF_ENABLE_SPKR;
link->conf.Status |= CCSR_AUDIO_ENA;
}
- link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
link->io.NumPorts2 = 8;
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
if (local->dingo) {
@@ -866,7 +864,6 @@ xirc2ps_config(struct pcmcia_device * link)
}
printk(KNOT_XIRC "no ports available\n");
} else {
- link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
link->io.NumPorts1 = 16;
for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
link->io.BasePort1 = ioaddr;
@@ -885,7 +882,7 @@ xirc2ps_config(struct pcmcia_device * link)
* Now allocate an interrupt line. Note that this does not
* actually assign a handler to the interrupt.
*/
- if ((err=pcmcia_request_irq(link, &link->irq)))
+ if ((err=pcmcia_request_irq(link, xirc2ps_interrupt)))
goto config_error;
/****************
@@ -982,7 +979,7 @@ xirc2ps_config(struct pcmcia_device * link)
printk(KNOT_XIRC "invalid if_port requested\n");
/* we can now register the device with the net subsystem */
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
if (local->dingo)
diff --git a/drivers/net/wireless/airo_cs.c b/drivers/net/wireless/airo_cs.c
index f6036fb..7867c51 100644
--- a/drivers/net/wireless/airo_cs.c
+++ b/drivers/net/wireless/airo_cs.c
@@ -132,10 +132,6 @@ static int airo_probe(struct pcmcia_device *p_dev)
dev_dbg(&p_dev->dev, "airo_attach()\n");
- /* Interrupt setup */
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- p_dev->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -212,9 +208,7 @@ static int airo_cs_config_check(struct pcmcia_device *p_dev,
else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
- /* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -300,16 +294,8 @@ static int airo_config(struct pcmcia_device *link)
if (ret)
goto failed;
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ if (!link->irq)
+ goto failed;
/*
This actually configures the PCMCIA socket -- setting up
@@ -320,7 +306,7 @@ static int airo_config(struct pcmcia_device *link)
if (ret)
goto failed;
((local_info_t *)link->priv)->eth_dev =
- init_airo_card(link->irq.AssignedIRQ,
+ init_airo_card(link->irq,
link->io.BasePort1, 1, &link->dev);
if (!((local_info_t *)link->priv)->eth_dev)
goto failed;
@@ -338,8 +324,7 @@ static int airo_config(struct pcmcia_device *link)
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Vpp)
printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
- if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c
index 3240791..759cdc4 100644
--- a/drivers/net/wireless/atmel_cs.c
+++ b/drivers/net/wireless/atmel_cs.c
@@ -141,10 +141,6 @@ static int atmel_probe(struct pcmcia_device *p_dev)
dev_dbg(&p_dev->dev, "atmel_attach()\n");
- /* Interrupt setup */
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- p_dev->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -226,9 +222,7 @@ static int atmel_config_check(struct pcmcia_device *p_dev,
else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
- /* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -278,15 +272,9 @@ static int atmel_config(struct pcmcia_device *link)
if (pcmcia_loop_config(link, atmel_config_check, NULL))
goto failed;
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
+ if (!link->irq) {
+ dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
+ goto failed;
}
/*
@@ -298,14 +286,8 @@ static int atmel_config(struct pcmcia_device *link)
if (ret)
goto failed;
- if (link->irq.AssignedIRQ == 0) {
- printk(KERN_ALERT
- "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config.");
- goto failed;
- }
-
((local_info_t*)link->priv)->eth_dev =
- init_atmel_card(link->irq.AssignedIRQ,
+ init_atmel_card(link->irq,
link->io.BasePort1,
did ? did->driver_info : ATMEL_FW_TYPE_NONE,
&link->dev,
diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c
index 984174b..b9ea107 100644
--- a/drivers/net/wireless/b43/pcmcia.c
+++ b/drivers/net/wireless/b43/pcmcia.c
@@ -97,10 +97,7 @@ static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
if (res != 0)
goto err_disable;
- dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- dev->irq.Handler = NULL; /* The handler is registered later. */
- res = pcmcia_request_irq(dev, &dev->irq);
- if (res != 0)
+ if (!dev->irq)
goto err_disable;
res = pcmcia_request_configuration(dev, &dev->conf);
diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index d19748d..7e5f4c0 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -555,15 +555,7 @@ static int prism2_config_check(struct pcmcia_device *p_dev,
p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
- else if (!(p_dev->conf.Attributes & CONF_ENABLE_IRQ)) {
- /* At least Compaq WL200 does not have IRQInfo1 set,
- * but it does not work without interrupts.. */
- printk(KERN_WARNING "Config has no IRQ info, but trying to "
- "enable IRQ anyway..\n");
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
- }
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d "
@@ -635,18 +627,9 @@ static int prism2_config(struct pcmcia_device *link)
strcpy(hw_priv->node.dev_name, dev->name);
link->dev_node = &hw_priv->node;
- /*
- * Allocate an interrupt line. Note that this does not assign a
- * handler to the interrupt, unless the 'Handler' member of the
- * irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = prism2_interrupt;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ ret = pcmcia_request_irq(link, prism2_interrupt);
+ if (ret)
+ goto failed;
/*
* This actually configures the PCMCIA socket -- setting up
@@ -657,7 +640,7 @@ static int prism2_config(struct pcmcia_device *link)
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
/* Finally, report what we've done */
@@ -667,7 +650,7 @@ static int prism2_config(struct pcmcia_device *link)
printk(", Vpp %d.%d", link->conf.Vpp / 10,
link->conf.Vpp % 10);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index 1f6cb58..0c99b7d 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -776,7 +776,7 @@ static void if_cs_release(struct pcmcia_device *p_dev)
lbs_deb_enter(LBS_DEB_CS);
- free_irq(p_dev->irq.AssignedIRQ, card);
+ free_irq(p_dev->irq, card);
pcmcia_disable_device(p_dev);
if (card->iobase)
ioport_unmap(card->iobase);
@@ -806,8 +806,7 @@ static int if_cs_ioprobe(struct pcmcia_device *p_dev,
p_dev->io.NumPorts1 = cfg->io.win[0].len;
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
if (cfg->io.nwin != 1) {
@@ -836,9 +835,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
card->p_dev = p_dev;
p_dev->priv = card;
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- p_dev->irq.Handler = NULL;
-
p_dev->conf.Attributes = 0;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
@@ -853,13 +849,8 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
* a handler to the interrupt, unless the 'Handler' member of
* the irq structure is initialized.
*/
- if (p_dev->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(p_dev, &p_dev->irq);
- if (ret) {
- lbs_pr_err("error in pcmcia_request_irq\n");
- goto out1;
- }
- }
+ if (!p_dev->irq)
+ goto out1;
/* Initialize io access */
card->iobase = ioport_map(p_dev->io.BasePort1, p_dev->io.NumPorts1);
@@ -882,7 +873,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
/* Finally, report what we've done */
lbs_deb_cs("irq %d, io 0x%04x-0x%04x\n",
- p_dev->irq.AssignedIRQ, p_dev->io.BasePort1,
+ p_dev->irq, p_dev->io.BasePort1,
p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1);
/*
@@ -939,7 +930,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
priv->fw_ready = 1;
/* Now actually get the IRQ */
- ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt,
+ ret = request_irq(p_dev->irq, if_cs_interrupt,
IRQF_SHARED, DRV_NAME, card);
if (ret) {
lbs_pr_err("error in request_irq\n");
diff --git a/drivers/net/wireless/orinoco/orinoco_cs.c b/drivers/net/wireless/orinoco/orinoco_cs.c
index 1d4ada1..5d29b11 100644
--- a/drivers/net/wireless/orinoco/orinoco_cs.c
+++ b/drivers/net/wireless/orinoco/orinoco_cs.c
@@ -119,10 +119,6 @@ orinoco_cs_probe(struct pcmcia_device *link)
card->p_dev = link;
link->priv = priv;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = orinoco_interrupt;
-
/* General socket configuration defaults can go here. In this
* client, we assume very little, and rely on the CIS for
* almost everything. In most clients, many details (i.e.,
@@ -258,12 +254,7 @@ orinoco_cs_config(struct pcmcia_device *link)
goto failed;
}
- /*
- * Allocate an interrupt line. Note that this does not assign
- * a handler to the interrupt, unless the 'Handler' member of
- * the irq structure is initialized.
- */
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, orinoco_interrupt);
if (ret)
goto failed;
@@ -296,7 +287,7 @@ orinoco_cs_config(struct pcmcia_device *link)
/* Register an interface with the stack */
if (orinoco_if_add(priv, link->io.BasePort1,
- link->irq.AssignedIRQ) != 0) {
+ link->irq) != 0) {
printk(KERN_ERR PFX "orinoco_if_add() failed\n");
goto failed;
}
diff --git a/drivers/net/wireless/orinoco/spectrum_cs.c b/drivers/net/wireless/orinoco/spectrum_cs.c
index 59bda24..7a8e056 100644
--- a/drivers/net/wireless/orinoco/spectrum_cs.c
+++ b/drivers/net/wireless/orinoco/spectrum_cs.c
@@ -193,10 +193,6 @@ spectrum_cs_probe(struct pcmcia_device *link)
card->p_dev = link;
link->priv = priv;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = orinoco_interrupt;
-
/* General socket configuration defaults can go here. In this
* client, we assume very little, and rely on the CIS for
* almost everything. In most clients, many details (i.e.,
@@ -332,12 +328,7 @@ spectrum_cs_config(struct pcmcia_device *link)
goto failed;
}
- /*
- * Allocate an interrupt line. Note that this does not assign
- * a handler to the interrupt, unless the 'Handler' member of
- * the irq structure is initialized.
- */
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, orinoco_interrupt);
if (ret)
goto failed;
@@ -374,7 +365,7 @@ spectrum_cs_config(struct pcmcia_device *link)
/* Register an interface with the stack */
if (orinoco_if_add(priv, link->io.BasePort1,
- link->irq.AssignedIRQ) != 0) {
+ link->irq) != 0) {
printk(KERN_ERR PFX "orinoco_if_add() failed\n");
goto failed;
}
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 7f0f855..e7ed2a4 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -321,10 +321,6 @@ static int ray_probe(struct pcmcia_device *p_dev)
p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
p_dev->io.IOAddrLines = 5;
- /* Interrupt setup. For PCMCIA, driver takes what's given */
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- p_dev->irq.Handler = &ray_interrupt;
-
/* General socket configuration */
p_dev->conf.Attributes = CONF_ENABLE_IRQ;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
@@ -417,10 +413,10 @@ static int ray_config(struct pcmcia_device *link)
/* Now allocate an interrupt line. Note that this does not
actually assign a handler to the interrupt.
*/
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, ray_interrupt);
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
/* This actually configures the PCMCIA socket -- setting up
the I/O windows and the interrupt mapping.
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 7b9621d..c43f05b 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1897,10 +1897,6 @@ static int wl3501_probe(struct pcmcia_device *p_dev)
p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
p_dev->io.IOAddrLines = 5;
- /* Interrupt setup */
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- p_dev->irq.Handler = wl3501_interrupt;
-
/* General socket configuration */
p_dev->conf.Attributes = CONF_ENABLE_IRQ;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
@@ -1961,7 +1957,7 @@ static int wl3501_config(struct pcmcia_device *link)
/* Now allocate an interrupt line. Note that this does not actually
* assign a handler to the interrupt. */
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, wl3501_interrupt);
if (ret)
goto failed;
@@ -1972,7 +1968,7 @@ static int wl3501_config(struct pcmcia_device *link)
if (ret)
goto failed;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
SET_NETDEV_DEV(dev, &link->dev);
if (register_netdev(dev)) {
diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c
index 7dd370f..80c9052 100644
--- a/drivers/parport/parport_cs.c
+++ b/drivers/parport/parport_cs.c
@@ -105,7 +105,6 @@ static int parport_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -174,20 +173,19 @@ static int parport_config(struct pcmcia_device *link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
goto failed;
p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2,
- link->irq.AssignedIRQ, PARPORT_DMA_NONE,
+ link->irq, PARPORT_DMA_NONE,
&link->dev, IRQF_SHARED);
if (p == NULL) {
printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
"0x%3x, irq %u failed\n", link->io.BasePort1,
- link->irq.AssignedIRQ);
+ link->irq);
goto failed;
}
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index e0b1efc..74245cc 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -531,7 +531,6 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
p_dev->function_config = tmp_dev->function_config;
p_dev->io = tmp_dev->io;
p_dev->irq = tmp_dev->irq;
- p_dev->irq_v = tmp_dev->irq_v;
kref_get(&p_dev->function_config->ref);
}
@@ -556,7 +555,7 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
dev_printk(KERN_NOTICE, &p_dev->dev,
"pcmcia: registering new device %s (IRQ: %d)\n",
- p_dev->devname, p_dev->irq_v);
+ p_dev->devname, p_dev->irq);
pcmcia_device_query(p_dev);
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index f629aac..c907a3f 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -407,41 +407,6 @@ out:
} /* pcmcia_release_io */
-static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
-{
- struct pcmcia_socket *s = p_dev->socket;
- config_t *c;
- int ret = -EINVAL;
-
- mutex_lock(&s->ops_mutex);
-
- c = p_dev->function_config;
-
- if (!p_dev->_irq)
- goto out;
-
- p_dev->_irq = 0;
-
- if (c->state & CONFIG_LOCKED)
- goto out;
-
- if (s->pcmcia_irq != req->AssignedIRQ) {
- dev_dbg(&s->dev, "IRQ must match assigned one\n");
- goto out;
- }
-
- if (req->Handler)
- free_irq(req->AssignedIRQ, p_dev->priv);
-
- ret = 0;
-
-out:
- mutex_unlock(&s->ops_mutex);
-
- return ret;
-} /* pcmcia_release_irq */
-
-
int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
{
struct pcmcia_socket *s = p_dev->socket;
@@ -679,61 +644,66 @@ out:
EXPORT_SYMBOL(pcmcia_request_io);
-/** pcmcia_request_irq
+/**
+ * pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device
*
- * Request_irq() reserves an irq for this client.
+ * pcmcia_request_irq() is a wrapper around request_irq which will allow
+ * the PCMCIA core to clean up the registration in pcmcia_disable_device().
+ * Drivers are free to use request_irq() directly, but then they need to
+ * call free_irq themselfves, too. Also, only IRQF_SHARED capable IRQ
+ * handlers are allowed.
*/
-
-int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req)
+int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
+ irq_handler_t handler)
{
- struct pcmcia_socket *s = p_dev->socket;
- config_t *c;
- int ret = -EINVAL, irq = p_dev->irq_v;
- int type = IRQF_SHARED;
+ int ret;
- mutex_lock(&s->ops_mutex);
+ if (!p_dev->irq)
+ return -EINVAL;
- if (!(s->state & SOCKET_PRESENT)) {
- dev_dbg(&s->dev, "No card present\n");
- goto out;
- }
- c = p_dev->function_config;
- if (c->state & CONFIG_LOCKED) {
- dev_dbg(&s->dev, "Configuration is locked\n");
- goto out;
- }
+ ret = request_irq(p_dev->irq, handler, IRQF_SHARED,
+ p_dev->devname, p_dev->priv);
+ if (!ret)
+ p_dev->_irq = 1;
- if (!irq) {
- dev_dbg(&s->dev, "no IRQ available\n");
- goto out;
- }
+ return ret;
+}
+EXPORT_SYMBOL(pcmcia_request_irq);
- if (!(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) {
- req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING;
- dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
- "needs updating to supported shared IRQ lines.\n");
- }
- if (req->Handler) {
- ret = request_irq(irq, req->Handler, type,
- p_dev->devname, p_dev->priv);
- if (ret) {
- dev_printk(KERN_INFO, &s->dev,
- "request_irq() failed\n");
- goto out;
- }
- }
+/**
+ * pcmcia_request_exclusive_irq() - attempt to request an exclusive IRQ first
+ *
+ * pcmcia_request_exclusive_irq() is a wrapper around request_irq which
+ * attempts first to request an exclusive IRQ. If it fails, it also accepts
+ * a shared IRQ, but prints out a warning. PCMCIA drivers should allow for
+ * IRQ sharing and either use request_irq directly (then they need to call
+ * free_irq themselves, too), or the pcmcia_request_irq() function.
+ */
+int __must_check
+pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev, irq_handler_t handler)
+{
+ int ret;
- req->AssignedIRQ = irq;
+ if (!p_dev->irq)
+ return -EINVAL;
- p_dev->_irq = 1;
+ ret = request_irq(p_dev->irq, handler, 0, p_dev->devname, p_dev->priv);
+ if (ret) {
+ ret = pcmcia_request_irq(p_dev, handler);
+ dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: "
+ "request for exclusive IRQ could not be fulfilled.\n");
+ dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
+ "needs updating to supported shared IRQ lines.\n");
+ }
+ if (ret)
+ dev_printk(KERN_INFO, &p_dev->dev, "request_irq() failed\n");
+ else
+ p_dev->_irq = 1;
- ret = 0;
-out:
- mutex_unlock(&s->ops_mutex);
return ret;
-} /* pcmcia_request_irq */
-EXPORT_SYMBOL(pcmcia_request_irq);
+} /* pcmcia_request_exclusive_irq */
+EXPORT_SYMBOL(pcmcia_request_exclusive_irq);
#ifdef CONFIG_PCMCIA_PROBE
@@ -777,7 +747,7 @@ static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
p_dev);
if (!ret) {
free_irq(irq, p_dev);
- p_dev->irq_v = s->pcmcia_irq = irq;
+ p_dev->irq = s->pcmcia_irq = irq;
pcmcia_used_irq[irq]++;
break;
}
@@ -818,12 +788,12 @@ int pcmcia_setup_irq(struct pcmcia_device *p_dev)
{
struct pcmcia_socket *s = p_dev->socket;
- if (p_dev->irq_v)
+ if (p_dev->irq)
return 0;
/* already assigned? */
if (s->pcmcia_irq) {
- p_dev->irq_v = s->pcmcia_irq;
+ p_dev->irq = s->pcmcia_irq;
return 0;
}
@@ -837,7 +807,7 @@ int pcmcia_setup_irq(struct pcmcia_device *p_dev)
/* but use the PCI irq otherwise */
if (s->pci_irq) {
- p_dev->irq_v = s->pcmcia_irq = s->pci_irq;
+ p_dev->irq = s->pcmcia_irq = s->pci_irq;
return 0;
}
@@ -945,7 +915,8 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev)
{
pcmcia_release_configuration(p_dev);
pcmcia_release_io(p_dev, &p_dev->io);
- pcmcia_release_irq(p_dev, &p_dev->irq);
+ if (p_dev->_irq)
+ free_irq(p_dev->irq, p_dev->priv);
if (p_dev->win)
pcmcia_release_window(p_dev, p_dev->win);
}
diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c
index 528733b..c1de4ba 100644
--- a/drivers/scsi/pcmcia/aha152x_stub.c
+++ b/drivers/scsi/pcmcia/aha152x_stub.c
@@ -105,7 +105,6 @@ static int aha152x_probe(struct pcmcia_device *link)
link->io.NumPorts1 = 0x20;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 10;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
@@ -160,8 +159,7 @@ static int aha152x_config_cs(struct pcmcia_device *link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
@@ -172,7 +170,7 @@ static int aha152x_config_cs(struct pcmcia_device *link)
memset(&s, 0, sizeof(s));
s.conf = "PCMCIA setup";
s.io_port = link->io.BasePort1;
- s.irq = link->irq.AssignedIRQ;
+ s.irq = link->irq;
s.scsiid = host_id;
s.reconnect = reconnect;
s.parity = parity;
diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c
index 9140406..8cb6d71 100644
--- a/drivers/scsi/pcmcia/fdomain_stub.c
+++ b/drivers/scsi/pcmcia/fdomain_stub.c
@@ -88,7 +88,6 @@ static int fdomain_probe(struct pcmcia_device *link)
link->io.NumPorts1 = 0x10;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 10;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
@@ -133,8 +132,7 @@ static int fdomain_config(struct pcmcia_device *link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
@@ -144,7 +142,7 @@ static int fdomain_config(struct pcmcia_device *link)
release_region(link->io.BasePort1, link->io.NumPorts1);
/* Set configuration options for the fdomain driver */
- sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
+ sprintf(str, "%d,%d", link->io.BasePort1, link->irq);
fdomain_setup(str);
host = __fdomain_16x0_detect(&fdomain_driver_template);
diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
index 0212464..24c78ed 100644
--- a/drivers/scsi/pcmcia/nsp_cs.c
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -1563,13 +1563,6 @@ static int nsp_cs_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 10; /* not used */
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-
- /* Interrupt handler */
- link->irq.Handler = &nspintr;
- link->irq.Attributes |= IRQF_SHARED;
-
/* General socket configuration */
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -1646,8 +1639,7 @@ static int nsp_cs_config_check(struct pcmcia_device *p_dev,
}
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -1720,10 +1712,8 @@ static int nsp_cs_config(struct pcmcia_device *link)
if (ret)
goto cs_failed;
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- if (pcmcia_request_irq(link, &link->irq))
- goto cs_failed;
- }
+ if (pcmcia_request_irq(link, nspintr))
+ goto cs_failed;
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
@@ -1741,7 +1731,7 @@ static int nsp_cs_config(struct pcmcia_device *link)
/* Set port and IRQ */
data->BaseAddress = link->io.BasePort1;
data->NumAddress = link->io.NumPorts1;
- data->IrqNumber = link->irq.AssignedIRQ;
+ data->IrqNumber = link->irq;
nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d",
data->BaseAddress, data->NumAddress, data->IrqNumber);
@@ -1775,7 +1765,7 @@ static int nsp_cs_config(struct pcmcia_device *link)
printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
}
if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
}
if (link->io.NumPorts1) {
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
diff --git a/drivers/scsi/pcmcia/qlogic_stub.c b/drivers/scsi/pcmcia/qlogic_stub.c
index f85f094..c3a4428 100644
--- a/drivers/scsi/pcmcia/qlogic_stub.c
+++ b/drivers/scsi/pcmcia/qlogic_stub.c
@@ -161,7 +161,6 @@ static int qlogic_probe(struct pcmcia_device *link)
link->io.NumPorts1 = 16;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 10;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.Present = PRESENT_OPTION;
@@ -209,8 +208,7 @@ static int qlogic_config(struct pcmcia_device * link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
@@ -227,10 +225,10 @@ static int qlogic_config(struct pcmcia_device * link)
/* The KXL-810AN has a bigger IO port window */
if (link->io.NumPorts1 == 32)
host = qlogic_detect(&qlogicfas_driver_template, link,
- link->io.BasePort1 + 16, link->irq.AssignedIRQ);
+ link->io.BasePort1 + 16, link->irq);
else
host = qlogic_detect(&qlogicfas_driver_template, link,
- link->io.BasePort1, link->irq.AssignedIRQ);
+ link->io.BasePort1, link->irq);
if (!host) {
printk(KERN_INFO "%s: no SCSI devices found\n", qlogic_name);
@@ -258,7 +256,7 @@ static void qlogic_release(struct pcmcia_device *link)
scsi_remove_host(info->host);
- free_irq(link->irq.AssignedIRQ, info->host);
+ free_irq(link->irq, info->host);
pcmcia_disable_device(link);
scsi_host_put(info->host);
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index e7564d8..6eacf4c 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -719,8 +719,7 @@ SYM53C500_config(struct pcmcia_device *link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
@@ -752,7 +751,7 @@ SYM53C500_config(struct pcmcia_device *link)
* 0x320, 0x330, 0x340, 0x350
*/
port_base = link->io.BasePort1;
- irq_level = link->irq.AssignedIRQ;
+ irq_level = link->irq;
DEB(printk("SYM53C500: port_base=0x%x, irq=%d, fast_pio=%d\n",
port_base, irq_level, USE_FAST_PIO);)
@@ -866,7 +865,6 @@ SYM53C500_probe(struct pcmcia_device *link)
link->io.NumPorts1 = 16;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.IOAddrLines = 10;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index e91db4b..7519d27 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -334,7 +334,6 @@ static int serial_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
link->io.NumPorts1 = 8;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
if (do_sound) {
link->conf.Attributes |= CONF_ENABLE_SPKR;
@@ -477,7 +476,7 @@ static int simple_config(struct pcmcia_device *link)
}
if (info->slave) {
return setup_serial(link, info, port,
- link->irq.AssignedIRQ);
+ link->irq);
}
}
@@ -498,10 +497,6 @@ static int simple_config(struct pcmcia_device *link)
return -1;
found_port:
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0)
- link->irq.AssignedIRQ = 0;
-
if (info->multi && (info->manfid == MANFID_3COM))
link->conf.ConfigIndex &= ~(0x08);
@@ -514,7 +509,7 @@ found_port:
i = pcmcia_request_configuration(link, &link->conf);
if (i != 0)
return -1;
- return setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ);
+ return setup_serial(link, info, link->io.BasePort1, link->irq);
}
static int multi_config_check(struct pcmcia_device *p_dev,
@@ -577,13 +572,9 @@ static int multi_config(struct pcmcia_device *link)
}
}
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0) {
- /* FIXME: comment does not fit, error handling does not fit */
- printk(KERN_NOTICE
- "serial_cs: no usable port range found, giving up\n");
- link->irq.AssignedIRQ = 0;
- }
+ if (!link->irq)
+ dev_warn(&link->dev,
+ "serial_cs: no usable IRQ found, continuing...\n");
/*
* Apply any configuration quirks.
@@ -606,11 +597,11 @@ static int multi_config(struct pcmcia_device *link)
if (link->conf.ConfigIndex == 1 ||
link->conf.ConfigIndex == 3) {
err = setup_serial(link, info, base2,
- link->irq.AssignedIRQ);
+ link->irq);
base2 = link->io.BasePort1;
} else {
err = setup_serial(link, info, link->io.BasePort1,
- link->irq.AssignedIRQ);
+ link->irq);
}
info->c950ctrl = base2;
@@ -624,10 +615,10 @@ static int multi_config(struct pcmcia_device *link)
return 0;
}
- setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ);
+ setup_serial(link, info, link->io.BasePort1, link->irq);
for (i = 0; i < info->multi - 1; i++)
setup_serial(link, info, base2 + (8 * i),
- link->irq.AssignedIRQ);
+ link->irq);
return 0;
}
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 03dfd27..1f0bddb 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -489,7 +489,7 @@ static int ssb_devices_register(struct ssb_bus *bus)
break;
case SSB_BUSTYPE_PCMCIA:
#ifdef CONFIG_SSB_PCMCIAHOST
- sdev->irq = bus->host_pcmcia->irq.AssignedIRQ;
+ sdev->irq = bus->host_pcmcia->irq;
dev->parent = &bus->host_pcmcia->dev;
#endif
break;
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index bc375e7..7711036 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -179,12 +179,12 @@ static int das16cs_attach(struct comedi_device *dev,
}
printk("\n");
- ret = request_irq(link->irq.AssignedIRQ, das16cs_interrupt,
+ ret = request_irq(link->irq, das16cs_interrupt,
IRQF_SHARED, "cb_das16_cs", dev);
if (ret < 0) {
return ret;
}
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
printk("irq=%u ", dev->irq);
dev->board_ptr = das16cs_probe(dev, link);
@@ -701,10 +701,6 @@ static int das16cs_pcmcia_attach(struct pcmcia_device *link)
link->priv = local;
/* Initialize the pcmcia_device structure */
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
link->conf.Attributes = 0;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -739,8 +735,7 @@ static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev,
return -EINVAL;
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -779,16 +774,9 @@ static void das16cs_pcmcia_config(struct pcmcia_device *link)
goto failed;
}
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ if (!link->irq)
+ goto failed;
+
/*
This actually configures the PCMCIA socket -- setting up
the I/O windows and the interrupt mapping, and putting the
@@ -810,7 +798,7 @@ static void das16cs_pcmcia_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %u", link->irq.AssignedIRQ);
+ printk(", irq %u", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1 + link->io.NumPorts1 - 1);
diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c
index f12ef1c..906cc2a 100644
--- a/drivers/staging/comedi/drivers/das08_cs.c
+++ b/drivers/staging/comedi/drivers/das08_cs.c
@@ -171,10 +171,6 @@ static int das08_pcmcia_attach(struct pcmcia_device *link)
local->link = link;
link->priv = local;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -228,8 +224,7 @@ static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev,
return -ENODEV;
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -276,11 +271,8 @@ static void das08_pcmcia_config(struct pcmcia_device *link)
goto failed;
}
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ if (!link->irq)
+ goto failed;
/*
This actually configures the PCMCIA socket -- setting up
@@ -303,7 +295,7 @@ static void das08_pcmcia_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %u", link->irq.AssignedIRQ);
+ printk(", irq %u", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1 + link->io.NumPorts1 - 1);
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c
index c9b0395..04fa19a 100644
--- a/drivers/staging/comedi/drivers/ni_daq_700.c
+++ b/drivers/staging/comedi/drivers/ni_daq_700.c
@@ -379,7 +379,7 @@ static int dio700_attach(struct comedi_device *dev, struct comedi_devconfig *it)
return -EIO;
iobase = link->io.BasePort1;
#ifdef incomplete
- irq = link->irq.AssignedIRQ;
+ irq = link->irq;
#endif
break;
default:
@@ -501,10 +501,6 @@ static int dio700_cs_attach(struct pcmcia_device *link)
local->link = link;
link->priv = local;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -576,8 +572,7 @@ static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev,
}
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -638,16 +633,8 @@ static void dio700_config(struct pcmcia_device *link)
goto failed;
}
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ if (!link->irq)
+ goto failed;
/*
This actually configures the PCMCIA socket -- setting up
@@ -670,7 +657,7 @@ static void dio700_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1 + link->io.NumPorts1 - 1);
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c
index 9017be3..4b0c608 100644
--- a/drivers/staging/comedi/drivers/ni_daq_dio24.c
+++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c
@@ -130,7 +130,7 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
return -EIO;
iobase = link->io.BasePort1;
#ifdef incomplete
- irq = link->irq.AssignedIRQ;
+ irq = link->irq;
#endif
break;
default:
@@ -252,10 +252,6 @@ static int dio24_cs_attach(struct pcmcia_device *link)
local->link = link;
link->priv = local;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -327,8 +323,7 @@ static int dio24_pcmcia_config_loop(struct pcmcia_device *p_dev,
}
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -389,16 +384,8 @@ static void dio24_config(struct pcmcia_device *link)
goto failed;
}
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ if (!link->irq)
+ goto failed;
/*
This actually configures the PCMCIA socket -- setting up
@@ -421,7 +408,7 @@ static void dio24_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1 + link->io.NumPorts1 - 1);
diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c
index 5a0e5b9..53caa78 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_cs.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c
@@ -143,7 +143,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
if (!link)
return -EIO;
iobase = link->io.BasePort1;
- irq = link->irq.AssignedIRQ;
+ irq = link->irq;
break;
default:
printk("bug! couldn't determine board type\n");
@@ -228,10 +228,6 @@ static int labpc_cs_attach(struct pcmcia_device *link)
local->link = link;
link->priv = local;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = NULL;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -305,9 +301,7 @@ static int labpc_pcmcia_config_loop(struct pcmcia_device *p_dev,
}
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |=
- (CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ);
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -367,16 +361,8 @@ static void labpc_config(struct pcmcia_device *link)
goto failed;
}
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ if (!link->irq)
+ goto failed;
/*
This actually configures the PCMCIA socket -- setting up
@@ -399,7 +385,7 @@ static void labpc_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1 + link->io.NumPorts1 - 1);
diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c
index dc4849a..a6007ab 100644
--- a/drivers/staging/comedi/drivers/ni_mio_cs.c
+++ b/drivers/staging/comedi/drivers/ni_mio_cs.c
@@ -272,7 +272,6 @@ static int cs_attach(struct pcmcia_device *link)
{
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
link->io.NumPorts1 = 16;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -344,10 +343,8 @@ static void mio_cs_config(struct pcmcia_device *link)
return;
}
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret) {
- printk("pcmcia_request_irq() returned error: %i\n", ret);
- }
+ if (!link->irq)
+ dev_info(&link->dev, "no IRQ available\n");
ret = pcmcia_request_configuration(link, &link->conf);
@@ -369,7 +366,7 @@ static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
dev->driver = &driver_ni_mio_cs;
dev->iobase = link->io.BasePort1;
- irq = link->irq.AssignedIRQ;
+ irq = link->irq;
printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
dev->minor, dev->driver->driver_name, dev->iobase, irq);
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index 3325f24..7aa17f9 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -1040,10 +1040,6 @@ static int daqp_cs_attach(struct pcmcia_device *link)
local->link = link;
link->priv = local;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = daqp_interrupt;
-
/*
General socket configuration defaults can go here. In this
client, we assume very little, and rely on the CIS for almost
@@ -1105,8 +1101,7 @@ static int daqp_pcmcia_config_loop(struct pcmcia_device *p_dev,
return -ENODEV;
/* Do we need to allocate an interrupt? */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -1144,16 +1139,9 @@ static void daqp_cs_config(struct pcmcia_device *link)
goto failed;
}
- /*
- Allocate an interrupt line. Note that this does not assign a
- handler to the interrupt, unless the 'Handler' member of the
- irq structure is initialized.
- */
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- }
+ ret = pcmcia_request_irq(link, daqp_interrupt);
+ if (ret)
+ goto failed;
/*
This actually configures the PCMCIA socket -- setting up
@@ -1180,7 +1168,7 @@ static void daqp_cs_config(struct pcmcia_device *link)
printk(KERN_INFO "%s: index 0x%02x",
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Attributes & CONF_ENABLE_IRQ)
- printk(", irq %u", link->irq.AssignedIRQ);
+ printk(", irq %u", link->irq);
if (link->io.NumPorts1)
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1 + link->io.NumPorts1 - 1);
diff --git a/drivers/staging/netwave/netwave_cs.c b/drivers/staging/netwave/netwave_cs.c
index 26477fd..1206b9c 100644
--- a/drivers/staging/netwave/netwave_cs.c
+++ b/drivers/staging/netwave/netwave_cs.c
@@ -382,10 +382,6 @@ static int netwave_probe(struct pcmcia_device *link)
link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */
link->io.IOAddrLines = 5;
- /* Interrupt setup */
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- link->irq.Handler = &netwave_interrupt;
-
/* General socket configuration */
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
@@ -732,7 +728,7 @@ static int netwave_pcmcia_config(struct pcmcia_device *link) {
* Now allocate an interrupt line. Note that this does not
* actually assign a handler to the interrupt.
*/
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_irq(link, netwave_interrupt);
if (ret)
goto failed;
@@ -767,7 +763,7 @@ static int netwave_pcmcia_config(struct pcmcia_device *link) {
ramBase = ioremap(req.Base, 0x8000);
priv->ramBase = ramBase;
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
SET_NETDEV_DEV(dev, &link->dev);
diff --git a/drivers/staging/wavelan/wavelan_cs.c b/drivers/staging/wavelan/wavelan_cs.c
index 04f691d..37fa855 100644
--- a/drivers/staging/wavelan/wavelan_cs.c
+++ b/drivers/staging/wavelan/wavelan_cs.c
@@ -3850,12 +3850,8 @@ wv_pcmcia_config(struct pcmcia_device * link)
if (i != 0)
break;
- /*
- * Now allocate an interrupt line. Note that this does not
- * actually assign a handler to the interrupt.
- */
- i = pcmcia_request_irq(link, &link->irq);
- if (i != 0)
+ i = pcmcia_request_interrupt(link, wavelan_interrupt);
+ if (!i)
break;
/*
@@ -3890,7 +3886,7 @@ wv_pcmcia_config(struct pcmcia_device * link)
break;
/* Feed device with this info... */
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
netif_start_queue(dev);
@@ -4437,10 +4433,6 @@ wavelan_probe(struct pcmcia_device *p_dev)
p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
p_dev->io.IOAddrLines = 3;
- /* Interrupt setup */
- p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
- p_dev->irq.Handler = wavelan_interrupt;
-
/* General socket configuration */
p_dev->conf.Attributes = CONF_ENABLE_IRQ;
p_dev->conf.IntType = INT_MEMORY_AND_IO;
@@ -4487,7 +4479,6 @@ wavelan_probe(struct pcmcia_device *p_dev)
ret = wv_hw_config(dev);
if (ret) {
- dev->irq = 0;
pcmcia_disable_device(p_dev);
return ret;
}
diff --git a/drivers/staging/wlags49_h2/wl_cs.c b/drivers/staging/wlags49_h2/wl_cs.c
index 811a8da..b2eb158 100644
--- a/drivers/staging/wlags49_h2/wl_cs.c
+++ b/drivers/staging/wlags49_h2/wl_cs.c
@@ -157,15 +157,12 @@ static int wl_adapter_attach(struct pcmcia_device *link)
link->io.NumPorts1 = HCF_NUM_IO_PORTS;
link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
link->io.IOAddrLines = 6;
- link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT;
- link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID;
- link->irq.Handler = &wl_isr;
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 5;
link->conf.Present = PRESENT_OPTION;
- link->priv = link->irq.Instance = dev;
+ link->priv = dev;
lp = wl_priv(dev);
lp->link = link;
@@ -319,11 +316,11 @@ void wl_adapter_insert( struct pcmcia_device *link )
link->conf.Attributes |= CONF_ENABLE_IRQ;
CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io));
- CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link, wl_isr));
CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
- dev->irq = link->irq.AssignedIRQ;
+ dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
SET_NETDEV_DEV(dev, &handle_to_dev(link));
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 39d253e..a712788 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -163,8 +163,7 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev,
dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
/* we need an interrupt */
- if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
+ p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
/* IO window settings */
p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
@@ -197,11 +196,8 @@ static int sl811_cs_config(struct pcmcia_device *link)
/* require an IRQ and two registers */
if (!link->io.NumPorts1 || link->io.NumPorts1 < 2)
goto failed;
- if (link->conf.Attributes & CONF_ENABLE_IRQ) {
- ret = pcmcia_request_irq(link, &link->irq);
- if (ret)
- goto failed;
- } else
+
+ if (!link->irq)
goto failed;
ret = pcmcia_request_configuration(link, &link->conf);
@@ -216,12 +212,12 @@ static int sl811_cs_config(struct pcmcia_device *link)
dev->node.dev_name, link->conf.ConfigIndex);
if (link->conf.Vpp)
printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
- printk(", irq %d", link->irq.AssignedIRQ);
+ printk(", irq %d", link->irq);
printk(", io 0x%04x-0x%04x", link->io.BasePort1,
link->io.BasePort1+link->io.NumPorts1-1);
printk("\n");
- if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ)
+ if (sl811_hc_init(parent, link->io.BasePort1, link->irq)
< 0) {
failed:
printk(KERN_WARNING "sl811_cs_config failed\n");
@@ -241,10 +237,6 @@ static int sl811_cs_probe(struct pcmcia_device *link)
local->p_dev = link;
link->priv = local;
- /* Initialize */
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.Handler = NULL;
-
link->conf.Attributes = 0;
link->conf.IntType = INT_MEMORY_AND_IO;
diff --git a/include/pcmcia/cs.h b/include/pcmcia/cs.h
index af61571..a04e6ca 100644
--- a/include/pcmcia/cs.h
+++ b/include/pcmcia/cs.h
@@ -114,13 +114,6 @@ typedef struct io_req_t {
#define IO_DATA_PATH_WIDTH_16 0x08
#define IO_DATA_PATH_WIDTH_AUTO 0x10
-/* For RequestIRQ and ReleaseIRQ */
-typedef struct irq_req_t {
- u_int Attributes;
- u_int AssignedIRQ;
- irq_handler_t Handler;
-} irq_req_t;
-
/* Attributes for RequestIRQ and ReleaseIRQ */
#define IRQ_TYPE 0x03
#define IRQ_TYPE_EXCLUSIVE 0x00
diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h
index f70c5c1..81b6d86 100644
--- a/include/pcmcia/ds.h
+++ b/include/pcmcia/ds.h
@@ -90,12 +90,11 @@ struct pcmcia_device {
dev_node_t *dev_node;
u_int open;
io_req_t io;
- irq_req_t irq;
config_req_t conf;
window_handle_t win;
/* device setup */
- unsigned int irq_v; /* do not use directly yet */
+ unsigned int irq;
/* Is the device suspended, or in the process of
* being removed? */
@@ -195,7 +194,13 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
/* device configuration */
int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req);
-int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req);
+
+int __must_check __deprecated
+pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
+ irq_handler_t handler);
+int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
+ irq_handler_t handler);
+
int pcmcia_request_configuration(struct pcmcia_device *p_dev,
config_req_t *req);
diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.c b/sound/pcmcia/pdaudiocf/pdaudiocf.c
index dcf8539..60fddf3 100644
--- a/sound/pcmcia/pdaudiocf/pdaudiocf.c
+++ b/sound/pcmcia/pdaudiocf/pdaudiocf.c
@@ -142,11 +142,6 @@ static int snd_pdacf_probe(struct pcmcia_device *link)
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.NumPorts1 = 16;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- /* FIXME: This driver should be updated to allow for dynamic IRQ sharing */
- /* link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; */
-
- link->irq.Handler = pdacf_interrupt;
link->conf.Attributes = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 1;
@@ -228,7 +223,7 @@ static int pdacf_config(struct pcmcia_device *link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_exclusive_irq(link, pdacf_interrupt);
if (ret)
goto failed;
@@ -236,7 +231,7 @@ static int pdacf_config(struct pcmcia_device *link)
if (ret)
goto failed;
- if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
+ if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq) < 0)
goto failed;
link->dev_node = &pdacf->node;
diff --git a/sound/pcmcia/vx/vxpocket.c b/sound/pcmcia/vx/vxpocket.c
index 7be3b33..4198395 100644
--- a/sound/pcmcia/vx/vxpocket.c
+++ b/sound/pcmcia/vx/vxpocket.c
@@ -161,10 +161,6 @@ static int snd_vxpocket_new(struct snd_card *card, int ibl,
link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
link->io.NumPorts1 = 16;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-
- link->irq.Handler = &snd_vx_irq_handler;
-
link->conf.Attributes = CONF_ENABLE_IRQ;
link->conf.IntType = INT_MEMORY_AND_IO;
link->conf.ConfigIndex = 1;
@@ -234,7 +230,7 @@ static int vxpocket_config(struct pcmcia_device *link)
if (ret)
goto failed;
- ret = pcmcia_request_irq(link, &link->irq);
+ ret = pcmcia_request_exclusive_irq(link, snd_vx_irq_handler);
if (ret)
goto failed;
@@ -245,7 +241,7 @@ static int vxpocket_config(struct pcmcia_device *link)
chip->dev = &link->dev;
snd_card_set_dev(chip->card, chip->dev);
- if (snd_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq.AssignedIRQ) < 0)
+ if (snd_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq) < 0)
goto failed;
link->dev_node = &vxp->node;
--
1.6.3.3
^ permalink raw reply related
* Re: RCU problems in fib_table_insert
From: Paul E. McKenney @ 2010-03-21 22:57 UTC (permalink / raw)
To: Eric Dumazet; +Cc: Andi Kleen, robert.olsson, netdev
In-Reply-To: <1269208186.3004.12.camel@edumazet-laptop>
On Sun, Mar 21, 2010 at 10:49:46PM +0100, Eric Dumazet wrote:
> Le dimanche 21 mars 2010 à 14:38 -0700, Paul E. McKenney a écrit :
>
> > You beat me to it, Eric. ;-)
> >
> > So:
> >
> > Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
>
> Well, to be fair, I typed less text than you did ;)
;-) ;-) ;-)
Thanx, Paul
^ permalink raw reply
* Re: [PATCH] Netfilter: Fix integer overflow in net/ipv6/netfilter/ip6_tables.c (fwd)
From: Eric Dumazet @ 2010-03-21 21:59 UTC (permalink / raw)
To: James Morris; +Cc: netdev
In-Reply-To: <alpine.LRH.2.00.1003220850180.3232@tundra.namei.org>
Le lundi 22 mars 2010 à 08:50 +1100, James Morris a écrit :
> ---------- Forwarded message ----------
> Date: Sat, 20 Mar 2010 22:32:40 +0800
> From: wzt.wzt@gmail.com
> To: linux-kernel@vger.kernel.org
> Cc: netfilter-devel@vger.kernel.org, kaber@trash.net
> Subject: [PATCH] Netfilter: Fix integer overflow in
> net/ipv6/netfilter/ip6_tables.c
>
> The get.size field in the get_entries() interface is not bounded
> correctly. The size is used to determine the total entry size.
> The size is bounded, but can overflow and so the size checks may
> not be sufficient to catch invalid size. Fix it by catching size
> values that would cause overflows before calculating the size.
>
> Signed-off-by: Zhitong Wang <zhitong.wangzt@alibaba-inc.com>
>
Unless I am wrong, this patch is not necessary, since we do a bit
later :
if (get.size == private->size)
ret = copy_entries_to_user(private->size,
t, uptr->entrytable);
else {
duprintf("get_entries: I've got %u not %u!\n",
private->size, get.size);
ret = -EAGAIN;
}
So if get.size doesnt match private->size (kernel certified), we exit
with an error. No calculation, no overflow involved.
^ permalink raw reply
* Re: [PATCH] fix PHY polling system blocking
From: Stefani Seibold @ 2010-03-21 21:54 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel, netdev, Thomas Gleixner, David Miller
In-Reply-To: <20100312144248.ade8b700.akpm@linux-foundation.org>
I had now analyzed the PHY handling in most of the network drivers. Most
of the PHY communication will be handled in a polling/blocking way,
write a command word and then wait for the results. Due the nature of
the PHY attachment, this will take some time.
Some of the network drivers do this polling/blocking also in atomic code
paths, like interrupts or timer. So activities on the PHY can cause huge
latency jitters.
On the other side, most of the network driver handle the PHY without
using or only partially using the phylib.
The phylib has also a drawback, because it polls the PHY despite if it
has interrupt support for it or not. I can't see a reason for this
behavior.
So the problem of huge latencies by polling the PHY occurs in most of
the network drivers. For example have a look at the e100 network driver
in the file drivers/net/e100.c, function mdio_ctrl_hw(): This function
will poll for max. of 4000 us or 4 ms.
To fix this latency jitter problem with the PHY polling there are the
following steps to do:
- disable polling in driver/net/phy.c if an interrupt for the PHY is
available
- create an own single or per cpu workqueue for the phylib, so that the
PHY specific code can temporary schedule or block
- prevent all current user of the phylib to access the PHY in a atomic
code path
- modify all current users of the phylib from using cpu_relax() to
cond_resched() and replace the counters against inquiring a timeout
- modify all other network drivers to use the phylib
What do you think?
Stefani
^ permalink raw reply
* [PATCH] Netfilter: Fix integer overflow in net/ipv6/netfilter/ip6_tables.c (fwd)
From: James Morris @ 2010-03-21 21:50 UTC (permalink / raw)
To: netdev
---------- Forwarded message ----------
Date: Sat, 20 Mar 2010 22:32:40 +0800
From: wzt.wzt@gmail.com
To: linux-kernel@vger.kernel.org
Cc: netfilter-devel@vger.kernel.org, kaber@trash.net
Subject: [PATCH] Netfilter: Fix integer overflow in
net/ipv6/netfilter/ip6_tables.c
The get.size field in the get_entries() interface is not bounded
correctly. The size is used to determine the total entry size.
The size is bounded, but can overflow and so the size checks may
not be sufficient to catch invalid size. Fix it by catching size
values that would cause overflows before calculating the size.
Signed-off-by: Zhitong Wang <zhitong.wangzt@alibaba-inc.com>
---
net/ipv4/netfilter/ip_tables.c | 4 ++++
net/ipv6/netfilter/ip6_tables.c | 4 ++++
2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 4e7c719..6abd3d2 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1164,6 +1164,10 @@ get_entries(struct net *net, struct ipt_get_entries __user *uptr, int *len)
}
if (copy_from_user(&get, uptr, sizeof(get)) != 0)
return -EFAULT;
+
+ if (get.size >= INT_MAX / sizeof(struct ipt_get_entries))
+ return -EINVAL;
+
if (*len != sizeof(struct ipt_get_entries) + get.size) {
duprintf("get_entries: %u != %zu\n",
*len, sizeof(get) + get.size);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 0b4557e..5185822 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1190,6 +1190,10 @@ get_entries(struct net *net, struct ip6t_get_entries __user *uptr, int *len)
}
if (copy_from_user(&get, uptr, sizeof(get)) != 0)
return -EFAULT;
+
+ if (get.size >= INT_MAX / sizeof(struct ip6t_get_entries))
+ return -EINVAL;
+
if (*len != sizeof(struct ip6t_get_entries) + get.size) {
duprintf("get_entries: %u != %zu\n",
*len, sizeof(get) + get.size);
--
1.6.5.3
--
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^ permalink raw reply related
* Re: RCU problems in fib_table_insert
From: Eric Dumazet @ 2010-03-21 21:49 UTC (permalink / raw)
To: paulmck; +Cc: Andi Kleen, robert.olsson, netdev
In-Reply-To: <20100321213803.GE2517@linux.vnet.ibm.com>
Le dimanche 21 mars 2010 à 14:38 -0700, Paul E. McKenney a écrit :
> You beat me to it, Eric. ;-)
>
> So:
>
> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Well, to be fair, I typed less text than you did ;)
Thanks
^ permalink raw reply
* Re: RCU problems in fib_table_insert
From: Paul E. McKenney @ 2010-03-21 21:38 UTC (permalink / raw)
To: Eric Dumazet; +Cc: Andi Kleen, robert.olsson, netdev
In-Reply-To: <1269206752.3004.9.camel@edumazet-laptop>
On Sun, Mar 21, 2010 at 10:25:52PM +0100, Eric Dumazet wrote:
> Le dimanche 21 mars 2010 à 21:25 +0100, Andi Kleen a écrit :
> > Hi,
> >
> > I got the following warning at boot with a 2.6.34-rc2ish git kernel
> > with RCU debugging and preemption enabled.
> >
> > It seems the problem is that not all callers of fib_find_node
> > call it with rcu_read_lock() to stabilize access to the fib.
> >
> > I tried to fix it, but especially for fib_table_insert() that's rather
> > tricky: it does a lot of memory allocations and also route flushing and
> > other blocking operations while assuming the original fa is RCU stable.
> >
> > I first tried to move some allocations to the beginning and keep
> > preemption disabled in the rest, but it's difficult with all of them.
> > No patch because of that.
> >
> > Does the fa need an additional reference count for this problem?
> > Or perhaps some optimistic locking?
> >
> > -Andi
>
> No real changes needed, only a lockdep warning...
>
> Probably a rcu_dereference() should be changed to
> rcu_dereference_check() like we did for __in6_dev_get()
>
> We hold RTNL or rcu_read_lock
>
> [PATCH] net: fib_find_node() rcu check
>
> We hold rcu read lock or RTNL when fib_find_node() is called.
> Shutup lockdep complain.
You beat me to it, Eric. ;-)
So:
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Reported-by: Andi Kleen <andi@firstfloor.org>
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
> ---
> diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
> index af5d897..471fe07 100644
> --- a/net/ipv4/fib_trie.c
> +++ b/net/ipv4/fib_trie.c
> @@ -961,7 +961,8 @@ fib_find_node(struct trie *t, u32 key)
> struct node *n;
>
> pos = 0;
> - n = rcu_dereference(t->trie);
> + n = rcu_dereference_check(t->trie,
> + rcu_read_lock_held() || lockdep_rtnl_is_held());
>
> while (n != NULL && NODE_TYPE(n) == T_TNODE) {
> tn = (struct tnode *) n;
>
>
^ permalink raw reply
* Re: RCU problems in fib_table_insert
From: Paul E. McKenney @ 2010-03-21 21:37 UTC (permalink / raw)
To: Andi Kleen; +Cc: robert.olsson, netdev
In-Reply-To: <20100321202525.GA966@basil.fritz.box>
On Sun, Mar 21, 2010 at 09:25:25PM +0100, Andi Kleen wrote:
> Hi,
>
> I got the following warning at boot with a 2.6.34-rc2ish git kernel
> with RCU debugging and preemption enabled.
>
> It seems the problem is that not all callers of fib_find_node
> call it with rcu_read_lock() to stabilize access to the fib.
>
> I tried to fix it, but especially for fib_table_insert() that's rather
> tricky: it does a lot of memory allocations and also route flushing and
> other blocking operations while assuming the original fa is RCU stable.
>
> I first tried to move some allocations to the beginning and keep
> preemption disabled in the rest, but it's difficult with all of them.
> No patch because of that.
>
> Does the fa need an additional reference count for this problem?
> Or perhaps some optimistic locking?
>
> -Andi
>
>
> ==================================================
> [ INFO: suspicious rcu_dereference_check() usage. ]
> ---------------------------------------------------
> /home/lsrc/git/linux-2.6/net/ipv4/fib_trie.c:964 invoked rcu_dereference_check() without protection!
>
> other info that might help us debug this:
>
>
> rcu_scheduler_active = 1, debug_locks = 0
> 2 locks held by ip/4521:
> #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff816466af>] rtnetlink_rcv+0x1f/0x40
> #1: ((inetaddr_chain).rwsem){.+.+.+}, at: [<ffffffff8107cde7>] __blocking_notifier_call_chain+0x47/0x90
Looks to me like a false positive: If I rememeber correctly, it is OK
to invoke the fib-trie functions either inside an RCU read-side critical
section or with RTNL held. However, I must defer to the networking guys.
For one thing, things might have changed since I last looked at this code.
But if I am correct, the following patch should work. If I am wrong,
this patch will instead incorrectly enforce my misconceptions. ;-)
Thanx, Paul
------------------------------------------------------------------------
net: suppress lockdep-RCU false positive in FIB trie.
Allow fib_find_node() to be called either under rcu_read_lock()
protection or with RTNL held.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
fib_trie.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index af5d897..01ef8ba 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -961,7 +961,9 @@ fib_find_node(struct trie *t, u32 key)
struct node *n;
pos = 0;
- n = rcu_dereference(t->trie);
+ n = rcu_dereference_check(t->trie,
+ rcu_read_lock_held() ||
+ lockdep_rtnl_is_held());
while (n != NULL && NODE_TYPE(n) == T_TNODE) {
tn = (struct tnode *) n;
^ permalink raw reply related
* Re: RCU problems in fib_table_insert
From: Eric Dumazet @ 2010-03-21 21:25 UTC (permalink / raw)
To: Andi Kleen; +Cc: robert.olsson, netdev, paulmck
In-Reply-To: <20100321202525.GA966@basil.fritz.box>
Le dimanche 21 mars 2010 à 21:25 +0100, Andi Kleen a écrit :
> Hi,
>
> I got the following warning at boot with a 2.6.34-rc2ish git kernel
> with RCU debugging and preemption enabled.
>
> It seems the problem is that not all callers of fib_find_node
> call it with rcu_read_lock() to stabilize access to the fib.
>
> I tried to fix it, but especially for fib_table_insert() that's rather
> tricky: it does a lot of memory allocations and also route flushing and
> other blocking operations while assuming the original fa is RCU stable.
>
> I first tried to move some allocations to the beginning and keep
> preemption disabled in the rest, but it's difficult with all of them.
> No patch because of that.
>
> Does the fa need an additional reference count for this problem?
> Or perhaps some optimistic locking?
>
> -Andi
No real changes needed, only a lockdep warning...
Probably a rcu_dereference() should be changed to
rcu_dereference_check() like we did for __in6_dev_get()
We hold RTNL or rcu_read_lock
[PATCH] net: fib_find_node() rcu check
We hold rcu read lock or RTNL when fib_find_node() is called.
Shutup lockdep complain.
Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
---
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index af5d897..471fe07 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -961,7 +961,8 @@ fib_find_node(struct trie *t, u32 key)
struct node *n;
pos = 0;
- n = rcu_dereference(t->trie);
+ n = rcu_dereference_check(t->trie,
+ rcu_read_lock_held() || lockdep_rtnl_is_held());
while (n != NULL && NODE_TYPE(n) == T_TNODE) {
tn = (struct tnode *) n;
^ permalink raw reply related
* 2.6.34-rc2: Reported regressions 2.6.32 -> 2.6.33
From: Rafael J. Wysocki @ 2010-03-21 20:27 UTC (permalink / raw)
To: Linux Kernel Mailing List
Cc: Maciej Rutecki, Andrew Morton, Linus Torvalds,
Kernel Testers List, Network Development, Linux ACPI,
Linux PM List, Linux SCSI List, Linux Wireless List, DRI
[NOTE:
Well, we seem to have two reports that are almost 2 months old and with
patches. Somebody care to push those patches to Linus or say why they
are invalid, pretty please?]
This message contains a list of some post-2.6.32 regressions introduced before
2.6.33, for which there are no fixes in the mainline known to the tracking team.
If any of them have been fixed already, please let us know.
If you know of any other unresolved post-2.6.32 regressions, please let us know
either and we'll add them to the list. Also, please let us know if any
of the entries below are invalid.
Each entry from the list will be sent additionally in an automatic reply to
this message with CCs to the people involved in reporting and handling the
issue.
Listed regressions statistics:
Date Total Pending Unresolved
----------------------------------------
2010-03-21 133 38 34
2010-02-21 115 34 27
2010-02-15 112 34 31
2010-02-07 97 27 20
2010-02-01 85 26 21
2010-01-24 75 29 23
2010-01-10 55 33 21
2009-12-29 36 34 27
Unresolved regressions
----------------------
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15585
Subject : [Bisected Regression in 2.6.32.8] i915 with KMS enabled causes memorycorruption when resuming from suspend-to-disk
Submitter : M. Vefa Bicakci <bicave@superonline.com>
Date : 2010-03-13 5:11 (9 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/d8e0902806c0bd2ccc4f6a267ff52565a3ec933b
Message-ID : <4B9B1E8F.5090806@superonline.com>
References : http://marc.info/?l=linux-kernel&m=126845754409543&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15544
Subject : black screen upon S3 resume, syslog has "render error" and "page table error"
Submitter : Sanjoy Mahajan <sanjoy@mit.edu>
Date : 2010-03-16 00:45 (6 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15534
Subject : 07ca:b808 crashing and breaking usb's
Submitter : Alex Fiestas <alex@eyeos.org>
Date : 2010-03-14 15:56 (8 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15527
Subject : [BUG] NULL pointer dereference in i915_gem_object_save_bit_17_swizzle
Submitter : Justin Madru <jdm64@gawab.com>
Date : 2010-03-04 9:00 (18 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/280b713b5b0fd84cf2469098aee88acbb5de859c
Message-ID : <20100304090047.23689.qmail@info88.gawab.com>
References : http://marc.info/?l=linux-kernel&m=126769366716380&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15525
Subject : Blank screen after some time, after hibernation/suspend
Submitter : <capsel@matrix.inten.pl>
Date : 2010-03-12 17:24 (10 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15502
Subject : render error detected, EIR: 0x00000010
Submitter : Artem Anisimov <aanisimov@inbox.ru>
Date : 2010-03-10 05:45 (12 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15494
Subject : BUG: key ffff88013d4f4c70 not in .data! when loading microcode.ko
Submitter : Alex Villacis Lasso <avillaci@ceibo.fiec.espol.edu.ec>
Date : 2010-03-09 16:28 (13 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15474
Subject : r8169 fails to bring up ethernet
Submitter : Matteo <rootkit85@yahoo.it>
Date : 2010-03-07 23:57 (15 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/ac1aa47b131416a6ff37eb1005a0a1d2541aad6c
Handled-By : Francois Romieu <romieu@fr.zoreil.com>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15466
Subject : 2.6.33 dies on modprobe
Submitter : M G Berberich <berberic@fmi.uni-passau.de>
Date : 2010-02-28 22:12 (22 days old)
Message-ID : <20100228221257.GA8858@invalid>
References : http://marc.info/?l=linux-kernel&m=126739570819208&w=2
Handled-By : Américo Wang <xiyou.wangcong@gmail.com>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15465
Subject : 2.6.33 problems
Submitter : werner@guyane.dyn-o-saur.com
Date : 2010-02-27 17:09 (23 days old)
Message-ID : <1267290551.13148@guyane.dyn-o-saur.com>
References : http://marc.info/?l=linux-kernel&m=126729183719672&w=2
Handled-By : Tejun Heo <tj@kernel.org>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15454
Subject : r8169 exits with error -22 since 2.6.33
Submitter : Conrad Kostecki <ConiKost@gmx.de>
Date : 2010-03-05 22:32 (17 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15439
Subject : Laptop does consume more power when booted "cold" -- Thinkpad X200s
Submitter : <johannes.schlatow@googlemail.com>
Date : 2010-03-03 23:09 (19 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15418
Subject : battery status info broken; missing entry in ec_dmi_table for specific MSI hardware (notebook)
Submitter : Tom-Steve Watzke <tswatzke@arcor.de>
Date : 2010-03-01 07:25 (21 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15392
Subject : The kernel does not start up.
Submitter : Kristóf Ralovich <kristof.ralovich@gmail.com>
Date : 2010-02-25 06:52 (25 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15376
Subject : regression (oops) with usb in 2.6.33-rc8
Submitter : Christophe Fergeau <cfergeau@mandriva.com>
Date : 2010-02-23 10:58 (27 days old)
Handled-By : Sarah Sharp <sarah.a.sharp@linux.intel.com>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15319
Subject : [BUG]: Possibe recursive locking detected in sysfs
Submitter : John Kacur <jkacur@redhat.com>
Date : 2010-02-11 17:11 (39 days old)
Message-ID : <520f0cf11002110911t3f125649v73062e9851e2cfb3@mail.gmail.com>
References : http://marc.info/?l=linux-kernel&m=126590832432598&w=2
Handled-By : Eric Biederman <ebiederm@aristanetworks.com>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15317
Subject : Lockdep report while running aplay with pulse as the default
Submitter : Ed Tomlinson <edt@aei.ca>
Date : 2010-02-13 17:17 (37 days old)
Message-ID : <201002131217.10579.edt@aei.ca>
References : http://marc.info/?l=linux-kernel&m=126608146427546&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15311
Subject : Starting pulseaudio causes a NULL pointer hit
Submitter : Ed Tomlinson <edt@aei.ca>
Date : 2010-02-14 23:41 (36 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15305
Subject : Dell video dies when booting
Submitter : David Ronis <ronis@ronispc.chem.mcgill.ca>
Date : 2010-02-14 1:07 (36 days old)
Message-ID : <1266109622.11290.10.camel@montroll.chem.mcgill.ca>
References : http://marc.info/?l=linux-kernel&m=126611098225127&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15278
Subject : lockdep warning for iscsi in 2.6.33-rc6
Submitter : Tao Ma <tao.ma@oracle.com>
Date : 2010-02-09 6:59 (41 days old)
Message-ID : <4B7107CF.3060703@oracle.com>
References : http://marc.info/?l=linux-kernel&m=126569884330200&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15277
Subject : 2.6.33-rc6 crashes on resume
Submitter : Bill Davidsen <davidsen@roadwarrior3.tmr.com>
Date : 2010-02-08 23:03 (42 days old)
Message-ID : <4B70982F.8090208@roadwarrior3.tmr.com>
References : http://marc.info/?l=linux-kernel&m=126567021801935&w=2
Handled-By : Rafael J. Wysocki <rjw@sisk.pl>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15276
Subject : latest git kernel: general protection fault: 0000 [#1]
Submitter : Markus Trippelsdorf <markus@trippelsdorf.de>
Date : 2010-02-09 8:36 (41 days old)
Message-ID : <20100209083605.GA1766@arch.tripp.de>
References : http://marc.info/?l=linux-kernel&m=126570498804223&w=2
Handled-By : Jérôme Glisse <glisse@freedesktop.org>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15259
Subject : Corruption with OpenGL since Intel's big DRM push on i945
Submitter : Alexandre Demers <papouta@hotmail.com>
Date : 2010-02-08 13:19 (42 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/76446cac68568fc7f5168a27deaf803ed22a4360
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15246
Subject : BUG: Bad page state in process portageq
Submitter : Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Date : 2010-02-07 0:45 (43 days old)
References : http://marc.info/?l=linux-kernel&m=126550356515887&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15245
Subject : [2.6.33-rc6 Weird JCPU times?
Submitter : Shawn Starr <shawn.starr@rogers.com>
Date : 2010-02-06 7:24 (44 days old)
References : http://marc.info/?l=linux-kernel&m=126544107816889&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15244
Subject : PROBLEM: hda-intel divide by zero kernel crash in azx_position_ok()
Submitter : Jody Bruchon <jody@nctritech.com>
Date : 2010-02-06 0:32 (44 days old)
References : http://marc.info/?l=linux-kernel&m=126541276028173&w=2
Handled-By : Takashi Iwai <tiwai@suse.de>
Jody Bruchon <jody@nctritech.com>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15202
Subject : lockdep warning during elevator_switch
Submitter : Hugh Dickins <hugh.dickins@tiscali.co.uk>
Date : 2010-01-31 23:55 (50 days old)
References : http://marc.info/?l=linux-kernel&m=126498212613051&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15200
Subject : NFS problems in 2.6.33-rc6: Unknown error 526
Submitter : J.A. Magallón <jamagallon@ono.com>
Date : 2010-01-31 22:46 (50 days old)
References : http://marc.info/?l=linux-kernel&m=126497800408928&w=4
Handled-By : Bruce Fields <bfields@fieldses.org>
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15139
Subject : e1000: transmit queue 0 timed out
Submitter : Alexander Beregalov <a.beregalov@gmail.com>
Date : 2010-01-23 15:37 (58 days old)
References : http://marc.info/?l=linux-netdev&m=126426149306083&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15076
Subject : System panic under load with clockevents_program_event
Submitter : okias <d.okias@gmail.com>
Date : 2010-01-17 13:03 (64 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15036
Subject : soft lockup in dmesg after suspend/resume
Submitter : ykzhao <yakui.zhao@intel.com>
Date : 2010-01-04 5:36 (77 days old)
References : http://marc.info/?l=linux-kernel&m=126258356202722&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=14950
Subject : tbench regression with 2.6.33-rc1
Submitter : Lin Ming <ming.m.lin@intel.com>
Date : 2009-12-25 11:11 (87 days old)
References : http://marc.info/?l=linux-kernel&m=126174044213172&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=14937
Subject : WARNING: at kernel/lockdep.c:2830
Submitter : Grant Wilson <grant.wilson@zen.co.uk>
Date : 2009-12-27 13:35 (85 days old)
References : http://marc.info/?l=linux-kernel&m=126192220404829&w=4
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=14792
Subject : Misdetection of the TV output
Submitter : Santi <santi@agolina.net>
Date : 2009-12-12 13:28 (100 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/27dfaf4f5825a119305db1bc63bef30ed400e376
Handled-By : Zhao Yakui <yakui.zhao@intel.com>
Regressions with patches
------------------------
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15328
Subject : high load avg, extreme sluggishness on T41 w/ Radeon Mobility M7
Submitter : John W. Linville <linville@tuxdriver.com>
Date : 2010-02-16 20:25 (34 days old)
Handled-By : Francisco Jerez <currojerez@riseup.net>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=25118
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15287
Subject : RadeonKMS segfaults kdm on mobility radeon x700 pcie
Submitter : Jan Kreuzer <kontrollator@gmx.de>
Date : 2010-02-12 17:58 (38 days old)
Handled-By : Matthew Wilcox <matthew@wil.cx>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=25483
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15192
Subject : netperf ~50% regression with 2.6.33-rc1, bisect to 1b9508f
Submitter : Lin Ming <ming.m.lin@intel.com>
Date : 2010-01-25 10:03 (56 days old)
First-Bad-Commit: http://git.kernel.org/git/linus/1b9508f6831e10d53256825de8904caa22d1ca2c
References : http://marc.info/?l=linux-kernel&m=126441481427331&w=4
Handled-By : Mike Galbraith <efault@gmx.de>
Peter Zijlstra <peterz@infradead.org>
Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Patch : http://patchwork.kernel.org/patch/78544/
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15142
Subject : sysfs-related lockdep warning in __blkdev_get
Submitter : Matti Aarnio <matti.aarnio--kernel-bugzilla@zmailer.org>
Date : 2010-01-25 13:38 (56 days old)
Handled-By : NeilBrown <neilb@suse.de>
Patch : https://bugzilla.kernel.org/attachment.cgi?id=25085
For details, please visit the bug entries and follow the links given in
references.
As you can see, there is a Bugzilla entry for each of the listed regressions.
There also is a Bugzilla entry used for tracking the regressions introduced
between 2.6.32 and 2.6.33, unresolved as well as resolved, at:
http://bugzilla.kernel.org/show_bug.cgi?id=14885
Please let the tracking teak know if there are any Bugzilla entries that
should be added to the list in there.
Thanks!
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply
* RCU problems in fib_table_insert
From: Andi Kleen @ 2010-03-21 20:25 UTC (permalink / raw)
To: robert.olsson, netdev; +Cc: paulmck
Hi,
I got the following warning at boot with a 2.6.34-rc2ish git kernel
with RCU debugging and preemption enabled.
It seems the problem is that not all callers of fib_find_node
call it with rcu_read_lock() to stabilize access to the fib.
I tried to fix it, but especially for fib_table_insert() that's rather
tricky: it does a lot of memory allocations and also route flushing and
other blocking operations while assuming the original fa is RCU stable.
I first tried to move some allocations to the beginning and keep
preemption disabled in the rest, but it's difficult with all of them.
No patch because of that.
Does the fa need an additional reference count for this problem?
Or perhaps some optimistic locking?
-Andi
==================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
/home/lsrc/git/linux-2.6/net/ipv4/fib_trie.c:964 invoked rcu_dereference_check() without protection!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 0
2 locks held by ip/4521:
#0: (rtnl_mutex){+.+.+.}, at: [<ffffffff816466af>] rtnetlink_rcv+0x1f/0x40
#1: ((inetaddr_chain).rwsem){.+.+.+}, at: [<ffffffff8107cde7>] __blocking_notifier_call_chain+0x47/0x90
stack backtrace:
Pid: 4521, comm: ip Not tainted 2.6.34-rc2 #5
Call Trace:
[<ffffffff8108b7e9>] lockdep_rcu_dereference+0xb9/0xc0
[<ffffffff81696a05>] fib_find_node+0x185/0x1b0
[<ffffffff8101155f>] ? save_stack_trace+0x2f/0x50
[<ffffffff81699b1c>] fib_table_insert+0xdc/0xa90
[<ffffffff8107cde7>] ? __blocking_notifier_call_chain+0x47/0x90
[<ffffffff8108edb5>] ? __lock_acquire+0x1485/0x1d50
[<ffffffff816926b0>] fib_magic+0xc0/0xd0
[<ffffffff81692738>] fib_add_ifaddr+0x78/0x1a0
[<ffffffff81692e60>] fib_inetaddr_event+0x50/0x2a0
[<ffffffff8173152d>] notifier_call_chain+0x6d/0xb0
[<ffffffff8107cdfd>] __blocking_notifier_call_chain+0x5d/0x90
[<ffffffff8107ce46>] blocking_notifier_call_chain+0x16/0x20
[<ffffffff81688c0a>] __inet_insert_ifa+0xea/0x180
[<ffffffff8168971d>] inetdev_event+0x43d/0x490
[<ffffffff8173152d>] notifier_call_chain+0x6d/0xb0
[<ffffffff8107cb06>] raw_notifier_call_chain+0x16/0x20
[<ffffffff81639f00>] __dev_notify_flags+0x40/0xa0
[<ffffffff81639fa5>] dev_change_flags+0x45/0x70
[<ffffffff81645c2c>] do_setlink+0x2fc/0x4a0
[<ffffffff81294176>] ? nla_parse+0x36/0x110
[<ffffffff81646d54>] rtnl_newlink+0x444/0x540
[<ffffffff8108c44d>] ? mark_held_locks+0x6d/0x90
[<ffffffff8172b8c5>] ? mutex_lock_nested+0x335/0x3c0
[<ffffffff8164685e>] rtnetlink_rcv_msg+0x18e/0x240
[<ffffffff816466d0>] ? rtnetlink_rcv_msg+0x0/0x240
[<ffffffff816520b9>] netlink_rcv_skb+0x89/0xb0
[<ffffffff816466be>] rtnetlink_rcv+0x2e/0x40
[<ffffffff81651b6b>] ? netlink_unicast+0x11b/0x2f0
[<ffffffff81651d2c>] netlink_unicast+0x2dc/0x2f0
[<ffffffff81630a3c>] ? memcpy_fromiovec+0x7c/0xa0
[<ffffffff81652643>] netlink_sendmsg+0x1d3/0x2e0
[<ffffffff81624e20>] sock_sendmsg+0xc0/0xf0
[<ffffffff8108f9cd>] ? lock_release_non_nested+0x9d/0x340
[<ffffffff810fa33b>] ? might_fault+0x7b/0xd0
[<ffffffff810fa33b>] ? might_fault+0x7b/0xd0
[<ffffffff810fa386>] ? might_fault+0xc6/0xd0
[<ffffffff810fa33b>] ? might_fault+0x7b/0xd0
[<ffffffff81630bfc>] ? verify_iovec+0x4c/0xe0
[<ffffffff81625c3e>] sys_sendmsg+0x1ae/0x360
[<ffffffff810fadf9>] ? __do_fault+0x3f9/0x550
[<ffffffff810fd143>] ? handle_mm_fault+0x1a3/0x790
[<ffffffff8112cc77>] ? fget_light+0xe7/0x2f0
[<ffffffff8108c735>] ? trace_hardirqs_on_caller+0x135/0x180
[<ffffffff8172ccc2>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff810030db>] system_call_fastpath+0x16/0x1b
--
ak@linux.intel.com -- Speaking for myself only.
^ permalink raw reply
* 2.6.34-rc2: Reported regressions from 2.6.33
From: Rafael J. Wysocki @ 2010-03-21 19:58 UTC (permalink / raw)
To: Linux Kernel Mailing List
Cc: Maciej Rutecki, Andrew Morton, Linus Torvalds,
Kernel Testers List, Network Development, Linux ACPI,
Linux PM List, Linux SCSI List, Linux Wireless List, DRI
[NOTES:
* In this cycle the regressions reported by e-mail will only be put into the
Bugzilla 1 week after they have been submitted, if not fixed in the
meantime. The reason is that some regressions are fixed in less than a
week time and there's no point listing them. [We also hope that people will
try to fix bugs faster to avoid being listed. ;-)] If that works, we'll
adopt it as a general rule.
* All of the regressions reported by e-mail that are listed below have been
put into the Bugzilla by Maciej, because I literally didn't have the time
to do that (that's also why the summary reports are delayed).
Thanks Maciej!]
This message contains a list of some regressions from 2.6.33,
for which there are no fixes in the mainline known to the tracking team.
If any of them have been fixed already, please let us know.
If you know of any other unresolved regressions from 2.6.33, please let us
know either and we'll add them to the list. Also, please let us know
if any of the entries below are invalid.
Each entry from the list will be sent additionally in an automatic reply
to this message with CCs to the people involved in reporting and handling
the issue.
Listed regressions statistics:
Date Total Pending Unresolved
----------------------------------------
2010-03-21 15 13 10
Unresolved regressions
----------------------
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15590
Subject : 2.6.34-rc1: regression: ^Z no longer stops sound
Submitter : Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
Date : 2010-03-14 7:58 (8 days old)
Message-ID : <20100314075831.GA13457-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
References : http://marc.info/?l=linux-kernel&m=126855353122623&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15589
Subject : 2.6.34-rc1: Badness at fs/proc/generic.c:316
Submitter : Christian Kujau <lists-AanptEQQ3TL9uQeqpI+JUg@public.gmane.org>
Date : 2010-03-13 23:53 (9 days old)
Message-ID : <alpine.DEB.2.01.1003131544340.5493-uKsf7x9sgtqQ/Pez2Lbyp4QuADTiUCJX@public.gmane.org>
References : http://marc.info/?l=linux-kernel&m=126852442903680&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15584
Subject : 2.6.34-rc1: lockdep warning on geode subnotebook
Submitter : Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
Date : 2010-03-13 10:51 (9 days old)
Message-ID : <20100313105109.GA9966-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
References : http://marc.info/?l=linux-kernel&m=126847750927601&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15555
Subject : 2.6.34-rc1: kernel BUG at mm/slab.c:2989!
Submitter : Américo Wang <xiyou.wangcong-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date : 2010-03-10 8:29 (12 days old)
Message-ID : <2375c9f91003100029q7d64bbf7xce15eee97f7e2190-JsoAwUIsXounXO2b/Sh1tA@public.gmane.orgom>
References : http://marc.info/?l=linux-kernel&m=126820979017089&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15549
Subject : [2.6.34-rc1][libata] regression?
Submitter : Etienne Basset <etienne.basset-Bf/eaXMDFuuXqB7oj33eUg@public.gmane.org>
Date : 2010-03-09 21:47 (13 days old)
Message-ID : <4B96C202.6050606-Bf/eaXMDFuuXqB7oj33eUg@public.gmane.org>
References : http://marc.info/?l=linux-kernel&m=126817180811846&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15548
Subject : BUG: key f70f4b50 not in .data
Submitter : Sergey Senozhatsky <sergey.senozhatsky-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date : 2010-03-09 10:27 (13 days old)
Message-ID : <20100309102754.GA3316-dY8u8AhHFaWtd10JCjopabkcH5ONE+aC@public.gmane.org>
References : http://marc.info/?l=linux-kernel&m=126813046113130&w=2
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15533
Subject : i915 fails to set mode in 2.6.34-rc1, ok in 2.6.33-rc8
Submitter : Pete Zaitcev <zaitcev-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
Date : 2010-03-13 20:37 (9 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15518
Subject : CONFIG_NO_BOOTMEM=y breaks boot on 32bit
Submitter : Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>
Date : 2010-03-11 15:37 (11 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15496
Subject : 2.6.34-rc1 crashes early while startup
Submitter : Thomas Meyer <thomas-VsYtu1Qij5c@public.gmane.org>
Date : 2010-03-09 19:40 (13 days old)
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15495
Subject : Flood of SELinux denials on polkitd
Submitter : Alex Villacis Lasso <avillaci-x0m+Mc+nT7uljOmnV8AmnkElSqmLX1BE@public.gmane.org>
Date : 2010-03-09 16:47 (13 days old)
Regressions with patches
------------------------
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15537
Subject : 2.6.34-rc1 hangs for 30 seconds when trying to access the disk
Submitter : Andrew Benton <b3nton-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Date : 2010-03-14 23:26 (8 days old)
Handled-By : Jeff Garzik <jgarzik-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
Patch : http://bugzilla.kernel.org/attachment.cgi?id=25516
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15505
Subject : No more b43 wireless interface since 2.6.34-rc1
Submitter : Christian Casteyde <casteyde.christian-GANU6spQydw@public.gmane.org>
Date : 2010-03-10 06:59 (12 days old)
Handled-By : Yinghai Lu <yinghai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Patch : https://bugzilla.kernel.org/show_bug.cgi?id=15505#c11
Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=15480
Subject : [regression] Fails to boot properly unless given pci=nocrs
Submitter : Yanko Kaneti <yaneti-jUE9FD3ILm5BDgjK7y7TUQ@public.gmane.org>
Date : 2010-03-09 01:24 (13 days old)
Handled-By : Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
Patch : http://lkml.org/lkml/2010/3/11/512
For details, please visit the bug entries and follow the links given in
references.
As you can see, there is a Bugzilla entry for each of the listed regressions.
There also is a Bugzilla entry used for tracking the regressions from 2.6.33,
unresolved as well as resolved, at:
http://bugzilla.kernel.org/show_bug.cgi?id=15310
Please let the tracking team know if there are any Bugzilla entries that
should be added to the list in there.
Thanks!
^ permalink raw reply
* Re: [patch] sunrpc: handle allocation errors from __rpc_lookup_create()
From: Trond Myklebust @ 2010-03-21 16:27 UTC (permalink / raw)
To: Dan Carpenter
Cc: J. Bruce Fields, Neil Brown, David S. Miller,
linux-nfs-u79uwXL29TY76Z2rM5mHXA, netdev-u79uwXL29TY76Z2rM5mHXA,
kernel-janitors-u79uwXL29TY76Z2rM5mHXA
In-Reply-To: <20100321092818.GI5331@bicker>
On Sun, 2010-03-21 at 12:28 +0300, Dan Carpenter wrote:
> __rpc_lookup_create() can return ERR_PTR(-ENOMEM).
>
> Signed-off-by: Dan Carpenter <error27-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Well spotted. Applied!
Cheers
Trond
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
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More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Avi Kivity @ 2010-03-21 11:58 UTC (permalink / raw)
To: Michael S. Tsirkin; +Cc: Sridhar Samudrala, netdev, kvm@vger.kernel.org, gleb
In-Reply-To: <20100321113443.GB12339@redhat.com>
On 03/21/2010 01:34 PM, Michael S. Tsirkin wrote:
> On Sun, Mar 21, 2010 at 12:29:31PM +0200, Avi Kivity wrote:
>
>> On 03/21/2010 12:15 PM, Michael S. Tsirkin wrote:
>>
>>>>> Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
>>>>> any objections to increasing the limit to say 16? That would give us
>>>>> 5 more devices to the limit of 6 per guest.
>>>>>
>>>>>
>>>>>
>>>> Increase it to 200, then.
>>>>
>>>>
>>> OK. I think we'll also need a smarter allocator
>>> than bus->dev_count++ than we now have. Right?
>>>
>>>
>> No, why?
>>
> We'll run into problems if devices are created/removed in random order,
> won't we?
>
unregister_dev() takes care of it.
>> Eventually we'll want faster scanning than the linear search we employ
>> now, though.
>>
> Yes I suspect with 200 entries we will :). Let's just make it 16 for
> now?
>
Let's make it 200 and fix the performance problems later. Making it 16
is just asking for trouble.
--
error compiling committee.c: too many arguments to function
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Michael S. Tsirkin @ 2010-03-21 11:34 UTC (permalink / raw)
To: Avi Kivity; +Cc: Sridhar Samudrala, netdev, kvm@vger.kernel.org, gleb
In-Reply-To: <4BA5F50B.8080302@redhat.com>
On Sun, Mar 21, 2010 at 12:29:31PM +0200, Avi Kivity wrote:
> On 03/21/2010 12:15 PM, Michael S. Tsirkin wrote:
>>>> Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
>>>> any objections to increasing the limit to say 16? That would give us
>>>> 5 more devices to the limit of 6 per guest.
>>>>
>>>>
>>> Increase it to 200, then.
>>>
>> OK. I think we'll also need a smarter allocator
>> than bus->dev_count++ than we now have. Right?
>>
>
> No, why?
We'll run into problems if devices are created/removed in random order,
won't we?
> Eventually we'll want faster scanning than the linear search we employ
> now, though.
Yes I suspect with 200 entries we will :). Let's just make it 16 for
now?
>>> Is the limit visible to userspace? If not, we need to expose it.
>>>
>> I don't think it's visible: it seems to be used in a single
>> place in kvm. Let's add an ioctl? Note that qemu doesn't
>> need it now ...
>>
>
> We usually expose limits via KVM_CHECK_EXTENSION(KVM_CAP_BLAH). We can
> expose it via KVM_CAP_IOEVENTFD (and need to reserve iodev entries for
> those).
>
> --
> error compiling committee.c: too many arguments to function
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Avi Kivity @ 2010-03-21 10:31 UTC (permalink / raw)
To: Gleb Natapov
Cc: Michael S. Tsirkin, Sridhar Samudrala, netdev,
kvm@vger.kernel.org
In-Reply-To: <20100321102143.GC13522@redhat.com>
On 03/21/2010 12:21 PM, Gleb Natapov wrote:
> On Sun, Mar 21, 2010 at 12:11:33PM +0200, Avi Kivity wrote:
>
>> On 03/21/2010 11:55 AM, Michael S. Tsirkin wrote:
>>
>>> On Fri, Mar 19, 2010 at 03:19:27PM -0700, Sridhar Samudrala wrote:
>>>
>>>> When creating a guest with 2 virtio-net interfaces, i am running
>>>> into a issue causing the 2nd i/f falling back to userpace virtio
>>>> even when vhost is enabled.
>>>>
>>>> After some debugging, it turned out that KVM_IOEVENTFD ioctl()
>>>> call in qemu is failing with ENOSPC.
>>>> This is because of the NR_IOBUS_DEVS(6) limit in kvm_io_bus_register_dev()
>>>> routine in the host kernel.
>>>>
>>>> I think we need to increase this limit if we want to support multiple
>>>> network interfaces using vhost-net.
>>>> Is there an alternate solution?
>>>>
>>>> Thanks
>>>> Sridhar
>>>>
>>> Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
>>> any objections to increasing the limit to say 16? That would give us
>>> 5 more devices to the limit of 6 per guest.
>>>
>> Increase it to 200, then.
>>
>>
> Currently on each device read/write we iterate over all registered
> devices. This is not scalable.
>
Yeah. We need first to drop the callback based matching and replace it
with explicit ranges, then to replace the search with a hash table for
small ranges (keeping a linear search for large ranges, can happen for
coalesced mmio).
--
error compiling committee.c: too many arguments to function
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Avi Kivity @ 2010-03-21 10:29 UTC (permalink / raw)
To: Michael S. Tsirkin; +Cc: Sridhar Samudrala, netdev, kvm@vger.kernel.org, gleb
In-Reply-To: <20100321101527.GH6443@redhat.com>
On 03/21/2010 12:15 PM, Michael S. Tsirkin wrote:
>>> Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
>>> any objections to increasing the limit to say 16? That would give us
>>> 5 more devices to the limit of 6 per guest.
>>>
>>>
>> Increase it to 200, then.
>>
> OK. I think we'll also need a smarter allocator
> than bus->dev_count++ than we now have. Right?
>
No, why?
Eventually we'll want faster scanning than the linear search we employ
now, though.
>> Is the limit visible to userspace? If not, we need to expose it.
>>
> I don't think it's visible: it seems to be used in a single
> place in kvm. Let's add an ioctl? Note that qemu doesn't
> need it now ...
>
We usually expose limits via KVM_CHECK_EXTENSION(KVM_CAP_BLAH). We can
expose it via KVM_CAP_IOEVENTFD (and need to reserve iodev entries for
those).
--
error compiling committee.c: too many arguments to function
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Gleb Natapov @ 2010-03-21 10:21 UTC (permalink / raw)
To: Avi Kivity
Cc: Michael S. Tsirkin, Sridhar Samudrala, netdev,
kvm@vger.kernel.org
In-Reply-To: <4BA5F0D5.6020801@redhat.com>
On Sun, Mar 21, 2010 at 12:11:33PM +0200, Avi Kivity wrote:
> On 03/21/2010 11:55 AM, Michael S. Tsirkin wrote:
> >On Fri, Mar 19, 2010 at 03:19:27PM -0700, Sridhar Samudrala wrote:
> >>When creating a guest with 2 virtio-net interfaces, i am running
> >>into a issue causing the 2nd i/f falling back to userpace virtio
> >>even when vhost is enabled.
> >>
> >>After some debugging, it turned out that KVM_IOEVENTFD ioctl()
> >>call in qemu is failing with ENOSPC.
> >>This is because of the NR_IOBUS_DEVS(6) limit in kvm_io_bus_register_dev()
> >>routine in the host kernel.
> >>
> >>I think we need to increase this limit if we want to support multiple
> >>network interfaces using vhost-net.
> >>Is there an alternate solution?
> >>
> >>Thanks
> >>Sridhar
> >Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
> >any objections to increasing the limit to say 16? That would give us
> >5 more devices to the limit of 6 per guest.
>
> Increase it to 200, then.
>
Currently on each device read/write we iterate over all registered
devices. This is not scalable.
> Is the limit visible to userspace? If not, we need to expose it.
>
> --
> error compiling committee.c: too many arguments to function
--
Gleb.
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Michael S. Tsirkin @ 2010-03-21 10:15 UTC (permalink / raw)
To: Avi Kivity; +Cc: Sridhar Samudrala, netdev, kvm@vger.kernel.org, gleb
In-Reply-To: <4BA5F0D5.6020801@redhat.com>
On Sun, Mar 21, 2010 at 12:11:33PM +0200, Avi Kivity wrote:
> On 03/21/2010 11:55 AM, Michael S. Tsirkin wrote:
>> On Fri, Mar 19, 2010 at 03:19:27PM -0700, Sridhar Samudrala wrote:
>>
>>> When creating a guest with 2 virtio-net interfaces, i am running
>>> into a issue causing the 2nd i/f falling back to userpace virtio
>>> even when vhost is enabled.
>>>
>>> After some debugging, it turned out that KVM_IOEVENTFD ioctl()
>>> call in qemu is failing with ENOSPC.
>>> This is because of the NR_IOBUS_DEVS(6) limit in kvm_io_bus_register_dev()
>>> routine in the host kernel.
>>>
>>> I think we need to increase this limit if we want to support multiple
>>> network interfaces using vhost-net.
>>> Is there an alternate solution?
>>>
>>> Thanks
>>> Sridhar
>>>
>> Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
>> any objections to increasing the limit to say 16? That would give us
>> 5 more devices to the limit of 6 per guest.
>>
>
> Increase it to 200, then.
OK. I think we'll also need a smarter allocator
than bus->dev_count++ than we now have. Right?
> Is the limit visible to userspace? If not, we need to expose it.
I don't think it's visible: it seems to be used in a single
place in kvm. Let's add an ioctl? Note that qemu doesn't
need it now ...
> --
> error compiling committee.c: too many arguments to function
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Avi Kivity @ 2010-03-21 10:11 UTC (permalink / raw)
To: Michael S. Tsirkin; +Cc: Sridhar Samudrala, netdev, kvm@vger.kernel.org, gleb
In-Reply-To: <20100321095544.GA6443@redhat.com>
On 03/21/2010 11:55 AM, Michael S. Tsirkin wrote:
> On Fri, Mar 19, 2010 at 03:19:27PM -0700, Sridhar Samudrala wrote:
>
>> When creating a guest with 2 virtio-net interfaces, i am running
>> into a issue causing the 2nd i/f falling back to userpace virtio
>> even when vhost is enabled.
>>
>> After some debugging, it turned out that KVM_IOEVENTFD ioctl()
>> call in qemu is failing with ENOSPC.
>> This is because of the NR_IOBUS_DEVS(6) limit in kvm_io_bus_register_dev()
>> routine in the host kernel.
>>
>> I think we need to increase this limit if we want to support multiple
>> network interfaces using vhost-net.
>> Is there an alternate solution?
>>
>> Thanks
>> Sridhar
>>
> Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
> any objections to increasing the limit to say 16? That would give us
> 5 more devices to the limit of 6 per guest.
>
Increase it to 200, then.
Is the limit visible to userspace? If not, we need to expose it.
--
error compiling committee.c: too many arguments to function
^ permalink raw reply
* Re: Unable to create more than 1 guest virtio-net device using vhost-net backend
From: Michael S. Tsirkin @ 2010-03-21 9:55 UTC (permalink / raw)
To: Sridhar Samudrala; +Cc: netdev, kvm@vger.kernel.org, avi, gleb
In-Reply-To: <1269037167.5127.12.camel@w-sridhar.beaverton.ibm.com>
On Fri, Mar 19, 2010 at 03:19:27PM -0700, Sridhar Samudrala wrote:
> When creating a guest with 2 virtio-net interfaces, i am running
> into a issue causing the 2nd i/f falling back to userpace virtio
> even when vhost is enabled.
>
> After some debugging, it turned out that KVM_IOEVENTFD ioctl()
> call in qemu is failing with ENOSPC.
> This is because of the NR_IOBUS_DEVS(6) limit in kvm_io_bus_register_dev()
> routine in the host kernel.
>
> I think we need to increase this limit if we want to support multiple
> network interfaces using vhost-net.
> Is there an alternate solution?
>
> Thanks
> Sridhar
Nothing easy that I can see. Each device needs 2 of these. Avi, Gleb,
any objections to increasing the limit to say 16? That would give us
5 more devices to the limit of 6 per guest.
--
MST
^ permalink raw reply
* [patch] sunrpc: handle allocation errors from __rpc_lookup_create()
From: Dan Carpenter @ 2010-03-21 9:28 UTC (permalink / raw)
To: Trond Myklebust
Cc: J. Bruce Fields, Neil Brown, David S. Miller,
linux-nfs-u79uwXL29TY76Z2rM5mHXA, netdev-u79uwXL29TY76Z2rM5mHXA,
kernel-janitors-u79uwXL29TY76Z2rM5mHXA
__rpc_lookup_create() can return ERR_PTR(-ENOMEM).
Signed-off-by: Dan Carpenter <error27-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 8d63f8f..20e30c6 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -587,6 +587,8 @@ static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
struct dentry *dentry;
dentry = __rpc_lookup_create(parent, name);
+ if (IS_ERR(dentry))
+ return dentry;
if (dentry->d_inode == NULL)
return dentry;
dput(dentry);
--
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^ permalink raw reply related
* Re: [PATCH] xfrm: cache bundle lookup results in flow cache
From: Timo Teräs @ 2010-03-21 8:31 UTC (permalink / raw)
To: Herbert Xu; +Cc: netdev, David S. Miller
In-Reply-To: <4BA5CC16.9040606@iki.fi>
Timo Teräs wrote:
> Herbert Xu wrote:
>> On Sat, Mar 20, 2010 at 06:26:00PM +0200, Timo Teräs wrote:
>>> So should go ahead and:
>>> 1. modify flow cache to be more generic (have virtual put and get
>>> for each object; and remove the atomic_t pointer)
>>> 2. modify flow cache to have slow and fast resolvers so we can
>>> copy with the current sleeping requirement
>>
>> I don't think we need either of these. To support the sleep
>> requirement, just return -EAGAIN from the resolver when the
>> template can't be resolved. Then the caller of flow_cache_lookup
>> can sleep as it does now. It simply has to repeat the flow
>> cache lookup afterwards.
>
> Ok, we can do that to skip 2. But I think 1 would be still useful.
> It'd probably be good to actually have flow_cache_ops pointer in
> each entry instead of the atomic_t pointer.
>
> The reasoning:
> - we can then have type-based checks that the reference count
> is valid (e.g. policy's refcount must not go to zero, it's bug,
> and we can call dst_release which warns if refcount goes to
> negative); imho it's hack to call atomic_dec instead of the
> real type's xxx_put
> - the flow cache needs to somehow know if the entry is stale so
> it'll try to refresh it atomically; e.g. if there's no
> check for 'stale', the lookup returns stale xfrm_dst. we'd
> then need new api to update the stale entry, or flush it out
> and repeat the lookup. the virtual get could check for it being
> stale (if so release the entry) and then return null for the
> generic code to call the resolver atomically
> - for paranoia we can actually check the type of the object in
> cache via the ops (if needed)
- could cache bundle OR policy for outgoing stuff. it's useful
to cache the policy in case we need to sleep, or if it's a
policy forbidding traffic. in those cases there's no bundle
to cache at all. alternatively we can make dummy bundles that
are marked invalid and are just used to keep a reference to
the policy.
Oh, this also implies that the resolver function should be
changed to get the old stale object so it can re-use it to
get the policy object instead of searching it all over again.
- Timo
^ permalink raw reply
* Re: [PATCH] xfrm: cache bundle lookup results in flow cache
From: Timo Teräs @ 2010-03-21 7:34 UTC (permalink / raw)
To: Herbert Xu; +Cc: netdev, David S. Miller
In-Reply-To: <20100321004659.GA5895@gondor.apana.org.au>
Herbert Xu wrote:
> On Sat, Mar 20, 2010 at 06:26:00PM +0200, Timo Teräs wrote:
>> So should go ahead and:
>> 1. modify flow cache to be more generic (have virtual put and get
>> for each object; and remove the atomic_t pointer)
>> 2. modify flow cache to have slow and fast resolvers so we can
>> copy with the current sleeping requirement
>
> I don't think we need either of these. To support the sleep
> requirement, just return -EAGAIN from the resolver when the
> template can't be resolved. Then the caller of flow_cache_lookup
> can sleep as it does now. It simply has to repeat the flow
> cache lookup afterwards.
Ok, we can do that to skip 2. But I think 1 would be still useful.
It'd probably be good to actually have flow_cache_ops pointer in
each entry instead of the atomic_t pointer.
The reasoning:
- we can then have type-based checks that the reference count
is valid (e.g. policy's refcount must not go to zero, it's bug,
and we can call dst_release which warns if refcount goes to
negative); imho it's hack to call atomic_dec instead of the
real type's xxx_put
- the flow cache needs to somehow know if the entry is stale so
it'll try to refresh it atomically; e.g. if there's no
check for 'stale', the lookup returns stale xfrm_dst. we'd
then need new api to update the stale entry, or flush it out
and repeat the lookup. the virtual get could check for it being
stale (if so release the entry) and then return null for the
generic code to call the resolver atomically
- for paranoia we can actually check the type of the object in
cache via the ops (if needed)
>> 3. cache bundles instead of policies for outgoing stuff
>> 4. kill find_bundle and just instantiate new ones if we get cache
>> miss
>> 5. put all bundles to global hlist (since only place that walks
>> through them is gc, and stale bundle can be dst_free'd right
>> away); use genid's for policy to flush old bundles
>> 6. dst_free and unlink bundle immediately if it's found to be stale
>
> Sounds good.
Okay. Sounds like a plan. I'll work on this next week.
I'll also try to make it a series of patches instead of the big
hunk I sent initially.
- Timo
^ permalink raw reply
* [PATCH 3/3] Bluetooth: Fix kernel crash on L2CAP stress tests
From: Marcel Holtmann @ 2010-03-21 5:41 UTC (permalink / raw)
To: David Miller, Linus Torvalds; +Cc: netdev
In-Reply-To: <cover.1269149354.git.marcel@holtmann.org>
From: Andrei Emeltchenko <andrei.emeltchenko@nokia.com>
Added very simple check that req buffer has enough space to
fit configuration parameters. Shall be enough to reject packets
with configuration size more than req buffer.
Crash trace below
[ 6069.659393] Unable to handle kernel paging request at virtual address 02000205
[ 6069.673034] Internal error: Oops: 805 [#1] PREEMPT
...
[ 6069.727172] PC is at l2cap_add_conf_opt+0x70/0xf0 [l2cap]
[ 6069.732604] LR is at l2cap_recv_frame+0x1350/0x2e78 [l2cap]
...
[ 6070.030303] Backtrace:
[ 6070.032806] [<bf1c2880>] (l2cap_add_conf_opt+0x0/0xf0 [l2cap]) from
[<bf1c6624>] (l2cap_recv_frame+0x1350/0x2e78 [l2cap])
[ 6070.043823] r8:dc5d3100 r7:df2a91d6 r6:00000001 r5:df2a8000 r4:00000200
[ 6070.050659] [<bf1c52d4>] (l2cap_recv_frame+0x0/0x2e78 [l2cap]) from
[<bf1c8408>] (l2cap_recv_acldata+0x2bc/0x350 [l2cap])
[ 6070.061798] [<bf1c814c>] (l2cap_recv_acldata+0x0/0x350 [l2cap]) from
[<bf0037a4>] (hci_rx_task+0x244/0x478 [bluetooth])
[ 6070.072631] r6:dc647700 r5:00000001 r4:df2ab740
[ 6070.077362] [<bf003560>] (hci_rx_task+0x0/0x478 [bluetooth]) from
[<c006b9fc>] (tasklet_action+0x78/0xd8)
[ 6070.087005] [<c006b984>] (tasklet_action+0x0/0xd8) from [<c006c160>]
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com>
Acked-by: Gustavo F. Padovan <gustavo@padovan.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
net/bluetooth/l2cap.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 43e17f7..7794a2e 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -2832,6 +2832,11 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
int len = cmd->len - sizeof(*rsp);
char req[64];
+ if (len > sizeof(req) - sizeof(struct l2cap_conf_req)) {
+ l2cap_send_disconn_req(conn, sk);
+ goto done;
+ }
+
/* throw out any old stored conf requests */
result = L2CAP_CONF_SUCCESS;
len = l2cap_parse_conf_rsp(sk, rsp->data,
--
1.6.6.1
^ permalink raw reply related
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