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powerpc/pseries: Don't give a warning when HPT resizing isn't available 

As of 438cc81a41 "powerpc/pseries: Automatically resize HPT for memory hot
add/remove" when running on the pseries platform, we always attempt to
use the PAPR extension to resize the hashed page table (HPT) when we add
or remove memory.

This is fine, but when the extension is available we'll give a harmless,
but scary warning.  This patch suppresses the warning in this case.  It
will still warn if the feature is supposed to be available, but didn't
work.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
David Gibson 2017-03-17 12:11:19 +11:00 committed by Michael Ellerman
parent 4be4119d1f
commit 7339390d77
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/mm/hash_utils_64.c
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@ -774,7 +774,7 @@ void resize_hpt_for_hotplug(unsigned long new_mem_size)
int rc;
rc = mmu_hash_ops.resize_hpt(target_hpt_shift);
if (rc)
if (rc && (rc != -ENODEV))
printk(KERN_WARNING
"Unable to resize hash page table to target order %d: %d\n",
target_hpt_shift, rc);