diff options
| author | Mark Brown <broonie@kernel.org> | 2018-07-05 11:05:54 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-05 11:05:54 +0100 |
| commit | 0ea97d66df2a8b85698823b4d55d798a7870d7b5 (patch) | |
| tree | e4f36af1342ebcbcb5878e66b1e72661b6f2ca1d /drivers/misc/cxl/sysfs.c | |
| parent | eed41b9f413f40183095d27ffc94fb942fe18bb6 (diff) | |
| parent | 6183a1afdd2fb1c994e95af9d6db45f157241a04 (diff) | |
Merge branch 'linux-linaro-lsk-v4.14' into linux-linaro-lsk-v4.14-rtlsk-v4.14-18.07-rt
Diffstat (limited to 'drivers/misc/cxl/sysfs.c')
| -rw-r--r-- | drivers/misc/cxl/sysfs.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/misc/cxl/sysfs.c b/drivers/misc/cxl/sysfs.c index a8b6d6a635e9..393a80bdb846 100644 --- a/drivers/misc/cxl/sysfs.c +++ b/drivers/misc/cxl/sysfs.c @@ -331,12 +331,20 @@ static ssize_t prefault_mode_store(struct device *device, struct cxl_afu *afu = to_cxl_afu(device); enum prefault_modes mode = -1; - if (!strncmp(buf, "work_element_descriptor", 23)) - mode = CXL_PREFAULT_WED; - if (!strncmp(buf, "all", 3)) - mode = CXL_PREFAULT_ALL; if (!strncmp(buf, "none", 4)) mode = CXL_PREFAULT_NONE; + else { + if (!radix_enabled()) { + + /* only allowed when not in radix mode */ + if (!strncmp(buf, "work_element_descriptor", 23)) + mode = CXL_PREFAULT_WED; + if (!strncmp(buf, "all", 3)) + mode = CXL_PREFAULT_ALL; + } else { + dev_err(device, "Cannot prefault with radix enabled\n"); + } + } if (mode == -1) return -EINVAL; |