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author | David S. Miller <davem@davemloft.net> | 2013-06-19 16:49:39 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2013-06-19 16:49:39 -0700 |
commit | d98cae64e4a733ff377184d78aa0b1f2b54faede (patch) | |
tree | e973e3c93fe7e17741567ac3947f5197bc9d582d /arch/mips/kernel/idle.c | |
parent | 646093a29f85630d8efe2aa38fa585d2c3ea2e46 (diff) | |
parent | 4067c666f2dccf56f5db5c182713e68c40d46013 (diff) | |
download | op-kernel-dev-d98cae64e4a733ff377184d78aa0b1f2b54faede.zip op-kernel-dev-d98cae64e4a733ff377184d78aa0b1f2b54faede.tar.gz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/wireless/ath/ath9k/Kconfig
drivers/net/xen-netback/netback.c
net/batman-adv/bat_iv_ogm.c
net/wireless/nl80211.c
The ath9k Kconfig conflict was a change of a Kconfig option name right
next to the deletion of another option.
The xen-netback conflict was overlapping changes involving the
handling of the notify list in xen_netbk_rx_action().
Batman conflict resolution provided by Antonio Quartulli, basically
keep everything in both conflict hunks.
The nl80211 conflict is a little more involved. In 'net' we added a
dynamic memory allocation to nl80211_dump_wiphy() to fix a race that
Linus reported. Meanwhile in 'net-next' the handlers were converted
to use pre and post doit handlers which use a flag to determine
whether to hold the RTNL mutex around the operation.
However, the dump handlers to not use this logic. Instead they have
to explicitly do the locking. There were apparent bugs in the
conversion of nl80211_dump_wiphy() in that we were not dropping the
RTNL mutex in all the return paths, and it seems we very much should
be doing so. So I fixed that whilst handling the overlapping changes.
To simplify the initial returns, I take the RTNL mutex after we try
to allocate 'tb'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/mips/kernel/idle.c')
-rw-r--r-- | arch/mips/kernel/idle.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c index 3b09b88..0c655de 100644 --- a/arch/mips/kernel/idle.c +++ b/arch/mips/kernel/idle.c @@ -93,26 +93,27 @@ static void rm7k_wait_irqoff(void) } /* - * The Au1xxx wait is available only if using 32khz counter or - * external timer source, but specifically not CP0 Counter. - * alchemy/common/time.c may override cpu_wait! + * Au1 'wait' is only useful when the 32kHz counter is used as timer, + * since coreclock (and the cp0 counter) stops upon executing it. Only an + * interrupt can wake it, so they must be enabled before entering idle modes. */ static void au1k_wait(void) { + unsigned long c0status = read_c0_status() | 1; /* irqs on */ + __asm__( " .set mips3 \n" " cache 0x14, 0(%0) \n" " cache 0x14, 32(%0) \n" " sync \n" - " nop \n" + " mtc0 %1, $12 \n" /* wr c0status */ " wait \n" " nop \n" " nop \n" " nop \n" " nop \n" " .set mips0 \n" - : : "r" (au1k_wait)); - local_irq_enable(); + : : "r" (au1k_wait), "r" (c0status)); } static int __initdata nowait; |