diff options
author | David S. Miller <davem@davemloft.net> | 2015-09-26 16:08:27 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2015-09-26 16:08:27 -0700 |
commit | 4963ed48f2c20196d51a447ee87dc2815584fee4 (patch) | |
tree | a1902f466dafa00453889a4f1e66b00249ce0529 /drivers/cpuidle/coupled.c | |
parent | 4d54d86546f62c7c4a0fe3b36a64c5e3b98ce1a9 (diff) | |
parent | 518a7cb6980cd640c7f979d29021ad870f60d7d7 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
net/ipv4/arp.c
The net/ipv4/arp.c conflict was one commit adding a new
local variable while another commit was deleting one.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/cpuidle/coupled.c')
-rw-r--r-- | drivers/cpuidle/coupled.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/cpuidle/coupled.c b/drivers/cpuidle/coupled.c index 1523e2d745eb..344058f8501a 100644 --- a/drivers/cpuidle/coupled.c +++ b/drivers/cpuidle/coupled.c @@ -187,6 +187,28 @@ bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state) } /** + * cpuidle_coupled_state_verify - check if the coupled states are correctly set. + * @drv: struct cpuidle_driver for the platform + * + * Returns 0 for valid state values, a negative error code otherwise: + * * -EINVAL if any coupled state(safe_state_index) is wrongly set. + */ +int cpuidle_coupled_state_verify(struct cpuidle_driver *drv) +{ + int i; + + for (i = drv->state_count - 1; i >= 0; i--) { + if (cpuidle_state_is_coupled(drv, i) && + (drv->safe_state_index == i || + drv->safe_state_index < 0 || + drv->safe_state_index >= drv->state_count)) + return -EINVAL; + } + + return 0; +} + +/** * cpuidle_coupled_set_ready - mark a cpu as ready * @coupled: the struct coupled that contains the current cpu */ |