Linus, please pull from the for-linus branch at
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git for-linus
to receive the following FireWire/ IEEE 1394 subsystem updates.
The bigger portion of this has been in -mm for a long time, held up by
another now fixed bug.
drivers/firewire/fw-ohci.c | 37 +++++++++++++++-------
drivers/ieee1394/ieee1394_transactions.c | 2 -
2 files changed, 25 insertions(+), 14 deletions(-)
Adrian Bunk (1):
ieee1394: ieee1394_transactions.c: remove dead code
Kristian Høgsberg (1):
firewire: Fix pci resume to not pass in a __be32 config rom.
Full log and diff:
commit 2ed45b07c957e37db88d7d3696b63eb79b0ef5ef
Author: Adrian Bunk <[email protected]>
Date: Sun Oct 28 16:51:32 2007 +0100
ieee1394: ieee1394_transactions.c: remove dead code
This patch removes dead code spotted by the Intel C Compiler.
Signed-off-by: Adrian Bunk <[email protected]>
Signed-off-by: Stefan Richter <[email protected]>
diff --git a/drivers/ieee1394/ieee1394_transactions.c b/drivers/ieee1394/ieee1394_transactions.c
index c39c70a..6779893 100644
--- a/drivers/ieee1394/ieee1394_transactions.c
+++ b/drivers/ieee1394/ieee1394_transactions.c
@@ -235,7 +235,6 @@ int hpsb_packet_success(struct hpsb_packet *packet)
packet->node_id);
return -EAGAIN;
}
- BUG();
case ACK_BUSY_X:
case ACK_BUSY_A:
@@ -282,7 +281,6 @@ int hpsb_packet_success(struct hpsb_packet *packet)
packet->ack_code, packet->node_id, packet->tcode);
return -EAGAIN;
}
- BUG();
}
struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
commit 0bd243c4d93583cd8e1786c0bd6982f6f9f94ab6
Author: Kristian Høgsberg <[email protected]>
Date: Tue Jun 5 19:27:05 2007 -0400
firewire: Fix pci resume to not pass in a __be32 config rom.
The ohci_enable() function shared between pci_probe and pci_resume
takes a host endian config rom, but ohci->config_rom is __be32. This
sets up the config rom in the wrong endian on little endian machine,
specifically, BusOptions will be initialized to a 0 max receive size.
This patch changes the way we reuse the config rom so that we avoid
this problem.
Signed-off-by: Kristian Hoegsberg <[email protected]>
Signed-off-by: Stefan Richter <[email protected]>
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index 6758832..c9b9081 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -984,8 +984,10 @@ static void bus_reset_tasklet(unsigned long data)
*/
if (ohci->next_config_rom != NULL) {
- free_rom = ohci->config_rom;
- free_rom_bus = ohci->config_rom_bus;
+ if (ohci->next_config_rom != ohci->config_rom) {
+ free_rom = ohci->config_rom;
+ free_rom_bus = ohci->config_rom_bus;
+ }
ohci->config_rom = ohci->next_config_rom;
ohci->config_rom_bus = ohci->next_config_rom_bus;
ohci->next_config_rom = NULL;
@@ -1161,19 +1163,30 @@ static int ohci_enable(struct fw_card *card, u32 *config_rom, size_t length)
* the right values in the bus reset tasklet.
*/
- ohci->next_config_rom =
- dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
- &ohci->next_config_rom_bus, GFP_KERNEL);
- if (ohci->next_config_rom == NULL)
- return -ENOMEM;
+ if (config_rom) {
+ ohci->next_config_rom =
+ dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+ &ohci->next_config_rom_bus,
+ GFP_KERNEL);
+ if (ohci->next_config_rom == NULL)
+ return -ENOMEM;
- memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE);
- fw_memcpy_to_be32(ohci->next_config_rom, config_rom, length * 4);
+ memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE);
+ fw_memcpy_to_be32(ohci->next_config_rom, config_rom, length * 4);
+ } else {
+ /*
+ * In the suspend case, config_rom is NULL, which
+ * means that we just reuse the old config rom.
+ */
+ ohci->next_config_rom = ohci->config_rom;
+ ohci->next_config_rom_bus = ohci->config_rom_bus;
+ }
- ohci->next_header = config_rom[0];
+ ohci->next_header = be32_to_cpu(ohci->next_config_rom[0]);
ohci->next_config_rom[0] = 0;
reg_write(ohci, OHCI1394_ConfigROMhdr, 0);
- reg_write(ohci, OHCI1394_BusOptions, config_rom[2]);
+ reg_write(ohci, OHCI1394_BusOptions,
+ be32_to_cpu(ohci->next_config_rom[2]));
reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus);
reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);
@@ -1984,7 +1997,7 @@ static int pci_resume(struct pci_dev *pdev)
return err;
}
- return ohci_enable(&ohci->card, ohci->config_rom, CONFIG_ROM_SIZE);
+ return ohci_enable(&ohci->card, NULL, 0);
}
#endif
--
Stefan Richter
-=====-=-=== =-=- =====
http://arcgraph.de/sr/
-
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