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powerpc/eeh: Drop unused argument in eeh_check_failure()

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eeh_check_failure() is used to check frozen state of the PE which
owns the indicated I/O address. The argument "val" of the function
isn't used. The patch drops it and return the frozen state of the
PE as expected.

Cc: Vishal Mansur <vmansur@linux.vnet.ibm.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Gavin Shan
2014-09-30 12:38:50 +10:00
committed by Michael Ellerman
parent a75c380c71
commit 3e938052fb
2 changed files with 20 additions and 24 deletions
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15
arch/powerpc/kernel/eeh.c
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@@ -542,17 +542,16 @@ EXPORT_SYMBOL_GPL(eeh_dev_check_failure);
/**
* eeh_check_failure - Check if all 1's data is due to EEH slot freeze
* @token: I/O token, should be address in the form 0xA....
* @val: value, should be all 1's (XXX why do we need this arg??)
* @token: I/O address
*
* Check for an EEH failure at the given token address. Call this
* Check for an EEH failure at the given I/O address. Call this
* routine if the result of a read was all 0xff's and you want to
* find out if this is due to an EEH slot freeze event. This routine
* find out if this is due to an EEH slot freeze event. This routine
* will query firmware for the EEH status.
*
* Note this routine is safe to call in an interrupt context.
*/
unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val)
int eeh_check_failure(const volatile void __iomem *token)
{
unsigned long addr;
struct eeh_dev *edev;
@@ -562,13 +561,11 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon
edev = eeh_addr_cache_get_dev(addr);
if (!edev) {
eeh_stats.no_device++;
return val;
return 0;
}
eeh_dev_check_failure(edev);
return val;
return eeh_dev_check_failure(edev);
}
EXPORT_SYMBOL(eeh_check_failure);