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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
144 lines
3 KiB
C
144 lines
3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
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*/
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#include <linux/vmalloc.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/sizes.h>
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#include <linux/ndctl.h>
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#include <linux/slab.h>
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#include <linux/mm.h>
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#include <linux/nd.h>
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#include "label.h"
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#include "nd.h"
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static int nvdimm_probe(struct device *dev)
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{
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struct nvdimm_drvdata *ndd;
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int rc;
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rc = nvdimm_security_setup_events(dev);
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if (rc < 0) {
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dev_err(dev, "security event setup failed: %d\n", rc);
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return rc;
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}
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rc = nvdimm_check_config_data(dev);
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if (rc) {
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/* not required for non-aliased nvdimm, ex. NVDIMM-N */
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if (rc == -ENOTTY)
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rc = 0;
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return rc;
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}
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/*
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* The locked status bit reflects explicit status codes from the
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* label reading commands, revalidate it each time the driver is
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* activated and re-reads the label area.
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*/
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nvdimm_clear_locked(dev);
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ndd = kzalloc_obj(*ndd);
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if (!ndd)
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return -ENOMEM;
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dev_set_drvdata(dev, ndd);
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ndd->dpa.name = dev_name(dev);
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ndd->ns_current = -1;
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ndd->ns_next = -1;
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ndd->dpa.start = 0;
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ndd->dpa.end = -1;
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ndd->dev = dev;
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get_device(dev);
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kref_init(&ndd->kref);
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/*
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* Attempt to unlock, if the DIMM supports security commands,
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* otherwise the locked indication is determined by explicit
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* status codes from the label reading commands.
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*/
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rc = nvdimm_security_unlock(dev);
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if (rc < 0)
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dev_dbg(dev, "failed to unlock dimm: %d\n", rc);
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/*
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* EACCES failures reading the namespace label-area-properties
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* are interpreted as the DIMM capacity being locked but the
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* namespace labels themselves being accessible.
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*/
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rc = nvdimm_init_nsarea(ndd);
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if (rc == -EACCES) {
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/*
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* See nvdimm_namespace_common_probe() where we fail to
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* allow namespaces to probe while the DIMM is locked,
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* but we do allow for namespace enumeration.
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*/
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nvdimm_set_locked(dev);
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rc = 0;
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}
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if (rc)
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goto err;
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/*
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* EACCES failures reading the namespace label-data are
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* interpreted as the label area being locked in addition to the
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* DIMM capacity. We fail the dimm probe to prevent regions from
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* attempting to parse the label area.
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*/
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rc = nd_label_data_init(ndd);
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if (rc == -EACCES)
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nvdimm_set_locked(dev);
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if (rc)
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goto err;
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dev_dbg(dev, "config data size: %d\n", ndd->nsarea.config_size);
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nvdimm_bus_lock(dev);
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if (ndd->ns_current >= 0) {
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rc = nd_label_reserve_dpa(ndd);
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if (rc == 0)
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nvdimm_set_labeling(dev);
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}
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nvdimm_bus_unlock(dev);
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if (rc)
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goto err;
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return 0;
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err:
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put_ndd(ndd);
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return rc;
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}
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static void nvdimm_remove(struct device *dev)
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{
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struct nvdimm_drvdata *ndd = dev_get_drvdata(dev);
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scoped_guard(nvdimm_bus, dev)
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dev_set_drvdata(dev, NULL);
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put_ndd(ndd);
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}
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static struct nd_device_driver nvdimm_driver = {
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.probe = nvdimm_probe,
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.remove = nvdimm_remove,
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.drv = {
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.name = "nvdimm",
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},
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.type = ND_DRIVER_DIMM,
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};
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int __init nvdimm_init(void)
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{
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return nd_driver_register(&nvdimm_driver);
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}
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void nvdimm_exit(void)
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{
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driver_unregister(&nvdimm_driver.drv);
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}
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MODULE_ALIAS_ND_DEVICE(ND_DEVICE_DIMM);
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