Commit 13135b46 authored Sep 14, 2020 by Vaibhav Jain Committed by Michael Ellerman Oct 08, 2020

powerpc/papr_scm: Add PAPR command family to pass-through command-set



Add NVDIMM_FAMILY_PAPR to the list of valid 'dimm_family_mask'
acceptable by papr_scm. This is needed as since commit
92fe2aa8 ("libnvdimm: Validate command family indices") libnvdimm
performs a validation of 'nd_cmd_pkg.nd_family' received as part of
ND_CMD_CALL processing to ensure only known command families can use
the general ND_CMD_CALL pass-through functionality.

Without this change the ND_CMD_CALL pass-through targeting
NVDIMM_FAMILY_PAPR error out with -EINVAL.

Fixes: 92fe2aa8 ("libnvdimm: Validate command family indices")
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200913211904.24472-1-vaibhav@linux.ibm.com

parent fbf2f134

arch/powerpc/platforms/pseries/papr_scm.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -898,6 +898,9 @@ static int papr_scm_nvdimm_init(struct papr_scm_priv *p)
		p->bus_desc.of_node = p->pdev->dev.of_node;
		p->bus_desc.provider_name = kstrdup(p->pdev->name, GFP_KERNEL);

		/* Set the dimm command family mask to accept PDSMs */
		set_bit(NVDIMM_FAMILY_PAPR, &p->bus_desc.dimm_family_mask);

		if (!p->bus_desc.provider_name)
		return -ENOMEM;

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