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authorDan Williams <dan.j.williams@intel.com>2016-07-19 12:32:39 -0700
committerDan Williams <dan.j.williams@intel.com>2016-07-19 12:32:39 -0700
commita72255983f12f31f0c8d8275fb1a781546cfacb7 (patch)
tree4c5c249460e99c8ca4e429cf0cac0ceb4018ce1b /tools
parenta99cde438de0c4c0cecc1d1af1a55a75b10bfdef (diff)
downloadlinux-a72255983f12f31f0c8d8275fb1a781546cfacb7.tar.bz2
nfit: make DIMM DSMs optional
Commit 4995734e973a "acpi, nfit: fix acpi_check_dsm() vs zero functions implemented" attempted to fix a QEMU regression by supporting its usage of a zero-mask as a valid response to a DSM-family probe request. However, this behavior breaks HP platforms that return a zero-mask by default causing the probe to misidentify the DSM-family. Instead, the QEMU regression can be fixed by simply not requiring the DSM family to be identified. This effectively reverts commit 4995734e973a, and removes the DSM requirement from the init path. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Xiao Guangrong <guangrong.xiao@linux.intel.com> Cc: Linda Knippers <linda.knippers@hpe.com> Fixes: 4995734e973a ("acpi, nfit: fix acpi_check_dsm() vs zero functions implemented") Reported-by: Jerry Hoemann <jerry.hoemann@hpe.com> Tested-by: Jerry Hoemann <jerry.hoemann@hpe.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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