From cdd77d3e193031cc67426cd671d8aa370f7dfee4 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 17 Nov 2017 16:23:08 -0800 Subject: nfit, libnvdimm: deprecate the generic SMART ioctl The kernel's ND_IOCTL_SMART_THRESHOLD command is based on a payload definition that has become broken / out-of-sync with recent versions of the NVDIMM_FAMILY_INTEL definition. Deprecate the use of the ND_IOCTL_SMART_THRESHOLD command in favor of the ND_CMD_CALL approach taken by NVDIMM_FAMILY_{HPE,MSFT}, where we can manage the per-vendor variance in userspace. In a couple years, when the new scheme is widely deployed in userspace packages, the ND_IOCTL_SMART_THRESHOLD support can be removed. For now we prevent new binaries from compiling against the kernel header definitions, but kernel still compatible with old binaries. The libndctl.h [1] header is now the authoritative interface definition for NVDIMM SMART. [1]: https://github.com/pmem/ndctl Signed-off-by: Dan Williams --- drivers/nvdimm/bus.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers/nvdimm/bus.c') diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 0a5e6cd758fe..78eabc3a1ab1 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -1142,9 +1142,6 @@ int __init nvdimm_bus_init(void) { int rc; - BUILD_BUG_ON(sizeof(struct nd_smart_payload) != 128); - BUILD_BUG_ON(sizeof(struct nd_smart_threshold_payload) != 8); - rc = bus_register(&nvdimm_bus_type); if (rc) return rc; -- cgit v1.2.3