linux/drivers/char/ipmi, branch v3.7.2

IPMI: Detect register spacing on PCI interfaces

2012-10-17T01:07:12Z

The IPMI spec defines a way to detect register spacing for PCI interfaces, so implement it. Signed-off-by: Steven Hsieh Signed-off-by: Corey Minyard Signed-off-by: Linus Torvalds

IPMI: Fix some uninitialized warning

2012-10-17T01:07:12Z

There was a spot where the compiler couldn't tell some variables would be set. So initialize them to make the warning go away. Signed-off-by: Corey Minyard Signed-off-by: Linus Torvalds

char/ipmi: remove local ioctl defines replaced by generic ones

2012-07-23T10:48:04Z

This watchdog driver had ioctl defines introduced locally for pre timeout handling, marked to be removed as soon as a generic replacement would become available. The latter has actually occurred in 2006, at e05b59fe. Remove the local duplicates for pre timeout handling. Signed-off-by: Oskar Schirmer Acked-by: Corey Minyard Signed-off-by: Wim Van Sebroeck Signed-off-by: Andrew Morton

PM / IPMI: Remove empty legacy PCI PM callbacks

2012-07-10T19:37:26Z

The legacy PM callbacks provided by the IPMI PCI driver are empty routines returning 0, so they can be safely dropped. Signed-off-by: Rafael J. Wysocki Acked-by: Corey Minyard

Merge branch 'akpm' (Andrew's patch-bomb)

2012-03-29T00:19:28Z

Merge third batch of patches from Andrew Morton: - Some MM stragglers - core SMP library cleanups (on_each_cpu_mask) - Some IPI optimisations - kexec - kdump - IPMI - the radix-tree iterator work - various other misc bits. "That'll do for -rc1. I still have ~10 patches for 3.4, will send those along when they've baked a little more." * emailed from Andrew Morton : (35 commits) backlight: fix typo in tosa_lcd.c crc32: add help text for the algorithm select option mm: move hugepage test examples to tools/testing/selftests/vm mm: move slabinfo.c to tools/vm mm: move page-types.c from Documentation to tools/vm selftests/Makefile: make `run_tests' depend on `all' selftests: launch individual selftests from the main Makefile radix-tree: use iterators in find_get_pages* functions radix-tree: rewrite gang lookup using iterator radix-tree: introduce bit-optimized iterator fs/proc/namespaces.c: prevent crash when ns_entries[] is empty nbd: rename the nbd_device variable from lo to nbd pidns: add reboot_pid_ns() to handle the reboot syscall sysctl: use bitmap library functions ipmi: use locks on watchdog timeout set on reboot ipmi: simplify locking ipmi: fix message handling during panics ipmi: use a tasklet for handling received messages ipmi: increase KCS timeouts ipmi: decrease the IPMI message transaction time in interrupt mode ...

ipmi: use locks on watchdog timeout set on reboot

2012-03-29T00:14:36Z

The IPMI watchdog timer clears or extends the timer on reboot/shutdown. It was using the non-locking routine for setting the watchdog timer, but this was causing race conditions. Instead, use the locking version to avoid the races. It seems to work fine. Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ipmi: simplify locking

2012-03-29T00:14:36Z

Now that the the IPMI driver is using a tasklet, we can simplify the locking in the driver and get rid of the message lock. Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ipmi: fix message handling during panics

2012-03-29T00:14:36Z

The part of the IPMI driver that delivered panic information to the event log and extended the watchdog timeout during a panic was not properly handling the messages. It used static messages to avoid allocation, but wasn't properly waiting for these, or wasn't properly handling the refcounts. Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ipmi: use a tasklet for handling received messages

2012-03-29T00:14:36Z

The IPMI driver would release a lock, deliver a message, then relock. This is obviously ugly, and this patch converts the message handler interface to use a tasklet to schedule work. This lets the receive handler be called from an interrupt handler with interrupts enabled. Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ipmi: increase KCS timeouts

2012-03-29T00:14:36Z

We currently time out and retry KCS transactions after 1 second of waiting for IBF or OBF. This appears to be too short for some hardware. The IPMI spec says "All system software wait loops should include error timeouts. For simplicity, such timeouts are not shown explicitly in the flow diagrams. A five-second timeout or greater is recommended". Change the timeout to five seconds to satisfy the slow hardware. Signed-off-by: Matthew Garrett Signed-off-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds