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c44696fff0 ("EDAC: Remove arbitrary limit on number of channels")
lifted the arbitrary limit on memory controller channels in EDAC.
However, the dynamic channel attributes dynamic_csrow_dimm_attr and
dynamic_csrow_ce_count_attr remained 6.
This wasn't a problem except channels 6 and 7 weren't visible in sysfs
on machines with more than 6 channels after the conversion to static
attr groups with
2c1946b6d6 ("EDAC: Use static attribute groups for managing sysfs entries")
[ without that, we're exploding in edac_create_sysfs_mci_device()
because we're dereferencing out of the bounds of the
dynamic_csrow_dimm_attr array. ]
Add attributes for channels 6 and 7 along with a guard for the
future, should more channels be required and/or to sanity check for
misconfigured machines.
We still need to check against the number of channels present on the MC
first, as Thor reported.
Signed-off-by: Borislav Petkov <bp@suse.de>
Reported-by: Hironobu Ishii <ishii.hironobu@jp.fujitsu.com>
Tested-by: Thor Thayer <tthayer@opensource.altera.com>
Cc: <stable@vger.kernel.org> # 4.2
bba142957e