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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-12 12:24:03 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-12 12:24:03 -0700 |
commit | f632a8170a6b667ee4e3f552087588f0fe13c4bb (patch) | |
tree | 9fbdd3505f1471364265727dea1bc9d034cbed8f /net | |
parent | ef8f3d48afd6a17a0dae8c277c2f539c2f19fd16 (diff) | |
parent | c33d442328f556460b79aba6058adb37bb555389 (diff) | |
download | linux-f632a8170a6b667ee4e3f552087588f0fe13c4bb.tar.gz linux-f632a8170a6b667ee4e3f552087588f0fe13c4bb.tar.bz2 linux-f632a8170a6b667ee4e3f552087588f0fe13c4bb.zip |
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the "big" driver core and debugfs changes for 5.3-rc1
It's a lot of different patches, all across the tree due to some api
changes and lots of debugfs cleanups.
Other than the debugfs cleanups, in this set of changes we have:
- bus iteration function cleanups
- scripts/get_abi.pl tool to display and parse Documentation/ABI
entries in a simple way
- cleanups to Documenatation/ABI/ entries to make them parse easier
due to typos and other minor things
- default_attrs use for some ktype users
- driver model documentation file conversions to .rst
- compressed firmware file loading
- deferred probe fixes
All of these have been in linux-next for a while, with a bunch of
merge issues that Stephen has been patient with me for"
* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
debugfs: make error message a bit more verbose
orangefs: fix build warning from debugfs cleanup patch
ubifs: fix build warning after debugfs cleanup patch
driver: core: Allow subsystems to continue deferring probe
drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
arch_topology: Remove error messages on out-of-memory conditions
lib: notifier-error-inject: no need to check return value of debugfs_create functions
swiotlb: no need to check return value of debugfs_create functions
ceph: no need to check return value of debugfs_create functions
sunrpc: no need to check return value of debugfs_create functions
ubifs: no need to check return value of debugfs_create functions
orangefs: no need to check return value of debugfs_create functions
nfsd: no need to check return value of debugfs_create functions
lib: 842: no need to check return value of debugfs_create functions
debugfs: provide pr_fmt() macro
debugfs: log errors when something goes wrong
drivers: s390/cio: Fix compilation warning about const qualifiers
drivers: Add generic helper to match by of_node
driver_find_device: Unify the match function with class_find_device()
bus_find_device: Unify the match callback with class_find_device
...
Diffstat (limited to 'net')
-rw-r--r-- | net/ceph/ceph_common.c | 5 | ||||
-rw-r--r-- | net/ceph/debugfs.c | 33 | ||||
-rw-r--r-- | net/sunrpc/debugfs.c | 66 |
3 files changed, 16 insertions, 88 deletions
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index 1c811c74bfc0..4eeea4d5c3ef 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -776,9 +776,7 @@ static int __init init_ceph_lib(void) { int ret = 0; - ret = ceph_debugfs_init(); - if (ret < 0) - goto out; + ceph_debugfs_init(); ret = ceph_crypto_init(); if (ret < 0) @@ -803,7 +801,6 @@ out_crypto: ceph_crypto_shutdown(); out_debugfs: ceph_debugfs_cleanup(); -out: return ret; } diff --git a/net/ceph/debugfs.c b/net/ceph/debugfs.c index 63aef9915f75..7cb992e55475 100644 --- a/net/ceph/debugfs.c +++ b/net/ceph/debugfs.c @@ -389,12 +389,9 @@ CEPH_DEFINE_SHOW_FUNC(monc_show) CEPH_DEFINE_SHOW_FUNC(osdc_show) CEPH_DEFINE_SHOW_FUNC(client_options_show) -int __init ceph_debugfs_init(void) +void __init ceph_debugfs_init(void) { ceph_debugfs_dir = debugfs_create_dir("ceph", NULL); - if (!ceph_debugfs_dir) - return -ENOMEM; - return 0; } void ceph_debugfs_cleanup(void) @@ -402,9 +399,8 @@ void ceph_debugfs_cleanup(void) debugfs_remove(ceph_debugfs_dir); } -int ceph_debugfs_client_init(struct ceph_client *client) +void ceph_debugfs_client_init(struct ceph_client *client) { - int ret = -ENOMEM; char name[80]; snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid, @@ -412,56 +408,37 @@ int ceph_debugfs_client_init(struct ceph_client *client) dout("ceph_debugfs_client_init %p %s\n", client, name); - BUG_ON(client->debugfs_dir); client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir); - if (!client->debugfs_dir) - goto out; client->monc.debugfs_file = debugfs_create_file("monc", 0400, client->debugfs_dir, client, &monc_show_fops); - if (!client->monc.debugfs_file) - goto out; client->osdc.debugfs_file = debugfs_create_file("osdc", 0400, client->debugfs_dir, client, &osdc_show_fops); - if (!client->osdc.debugfs_file) - goto out; client->debugfs_monmap = debugfs_create_file("monmap", 0400, client->debugfs_dir, client, &monmap_show_fops); - if (!client->debugfs_monmap) - goto out; client->debugfs_osdmap = debugfs_create_file("osdmap", 0400, client->debugfs_dir, client, &osdmap_show_fops); - if (!client->debugfs_osdmap) - goto out; client->debugfs_options = debugfs_create_file("client_options", 0400, client->debugfs_dir, client, &client_options_show_fops); - if (!client->debugfs_options) - goto out; - - return 0; - -out: - ceph_debugfs_client_cleanup(client); - return ret; } void ceph_debugfs_client_cleanup(struct ceph_client *client) @@ -477,18 +454,16 @@ void ceph_debugfs_client_cleanup(struct ceph_client *client) #else /* CONFIG_DEBUG_FS */ -int __init ceph_debugfs_init(void) +void __init ceph_debugfs_init(void) { - return 0; } void ceph_debugfs_cleanup(void) { } -int ceph_debugfs_client_init(struct ceph_client *client) +void ceph_debugfs_client_init(struct ceph_client *client) { - return 0; } void ceph_debugfs_client_cleanup(struct ceph_client *client) diff --git a/net/sunrpc/debugfs.c b/net/sunrpc/debugfs.c index 95ebd76b132d..707d7aab1546 100644 --- a/net/sunrpc/debugfs.c +++ b/net/sunrpc/debugfs.c @@ -11,7 +11,6 @@ #include "netns.h" static struct dentry *topdir; -static struct dentry *rpc_fault_dir; static struct dentry *rpc_clnt_dir; static struct dentry *rpc_xprt_dir; @@ -125,23 +124,16 @@ rpc_clnt_debugfs_register(struct rpc_clnt *clnt) char name[24]; /* enough for "../../rpc_xprt/ + 8 hex digits + NULL */ struct rpc_xprt *xprt; - /* Already registered? */ - if (clnt->cl_debugfs || !rpc_clnt_dir) - return; - len = snprintf(name, sizeof(name), "%x", clnt->cl_clid); if (len >= sizeof(name)) return; /* make the per-client dir */ clnt->cl_debugfs = debugfs_create_dir(name, rpc_clnt_dir); - if (!clnt->cl_debugfs) - return; /* make tasks file */ - if (!debugfs_create_file("tasks", S_IFREG | 0400, clnt->cl_debugfs, - clnt, &tasks_fops)) - goto out_err; + debugfs_create_file("tasks", S_IFREG | 0400, clnt->cl_debugfs, clnt, + &tasks_fops); rcu_read_lock(); xprt = rcu_dereference(clnt->cl_xprt); @@ -157,8 +149,7 @@ rpc_clnt_debugfs_register(struct rpc_clnt *clnt) if (len >= sizeof(name)) goto out_err; - if (!debugfs_create_symlink("xprt", clnt->cl_debugfs, name)) - goto out_err; + debugfs_create_symlink("xprt", clnt->cl_debugfs, name); return; out_err: @@ -226,9 +217,6 @@ rpc_xprt_debugfs_register(struct rpc_xprt *xprt) static atomic_t cur_id; char name[9]; /* 8 hex digits + NULL term */ - if (!rpc_xprt_dir) - return; - id = (unsigned int)atomic_inc_return(&cur_id); len = snprintf(name, sizeof(name), "%x", id); @@ -237,15 +225,10 @@ rpc_xprt_debugfs_register(struct rpc_xprt *xprt) /* make the per-client dir */ xprt->debugfs = debugfs_create_dir(name, rpc_xprt_dir); - if (!xprt->debugfs) - return; /* make tasks file */ - if (!debugfs_create_file("info", S_IFREG | 0400, xprt->debugfs, - xprt, &xprt_info_fops)) { - debugfs_remove_recursive(xprt->debugfs); - xprt->debugfs = NULL; - } + debugfs_create_file("info", S_IFREG | 0400, xprt->debugfs, xprt, + &xprt_info_fops); atomic_set(&xprt->inject_disconnect, rpc_inject_disconnect); } @@ -308,28 +291,11 @@ static const struct file_operations fault_disconnect_fops = { .release = fault_release, }; -static struct dentry * -inject_fault_dir(struct dentry *topdir) -{ - struct dentry *faultdir; - - faultdir = debugfs_create_dir("inject_fault", topdir); - if (!faultdir) - return NULL; - - if (!debugfs_create_file("disconnect", S_IFREG | 0400, faultdir, - NULL, &fault_disconnect_fops)) - return NULL; - - return faultdir; -} - void __exit sunrpc_debugfs_exit(void) { debugfs_remove_recursive(topdir); topdir = NULL; - rpc_fault_dir = NULL; rpc_clnt_dir = NULL; rpc_xprt_dir = NULL; } @@ -337,26 +303,16 @@ sunrpc_debugfs_exit(void) void __init sunrpc_debugfs_init(void) { - topdir = debugfs_create_dir("sunrpc", NULL); - if (!topdir) - return; + struct dentry *rpc_fault_dir; - rpc_fault_dir = inject_fault_dir(topdir); - if (!rpc_fault_dir) - goto out_remove; + topdir = debugfs_create_dir("sunrpc", NULL); rpc_clnt_dir = debugfs_create_dir("rpc_clnt", topdir); - if (!rpc_clnt_dir) - goto out_remove; rpc_xprt_dir = debugfs_create_dir("rpc_xprt", topdir); - if (!rpc_xprt_dir) - goto out_remove; - return; -out_remove: - debugfs_remove_recursive(topdir); - topdir = NULL; - rpc_fault_dir = NULL; - rpc_clnt_dir = NULL; + rpc_fault_dir = debugfs_create_dir("inject_fault", topdir); + + debugfs_create_file("disconnect", S_IFREG | 0400, rpc_fault_dir, NULL, + &fault_disconnect_fops); } |