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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 /drivers/misc/cxl/debugfs.c | |
parent | ef8f3d48afd6a17a0dae8c277c2f539c2f19fd16 (diff) | |
parent | c33d442328f556460b79aba6058adb37bb555389 (diff) | |
download | linux-f632a8170a6b667ee4e3f552087588f0fe13c4bb.tar.bz2 |
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 'drivers/misc/cxl/debugfs.c')
-rw-r--r-- | drivers/misc/cxl/debugfs.c | 36 |
1 files changed, 11 insertions, 25 deletions
diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c index 1fda22c24c93..7b987bf498b5 100644 --- a/drivers/misc/cxl/debugfs.c +++ b/drivers/misc/cxl/debugfs.c @@ -26,11 +26,11 @@ static int debugfs_io_u64_set(void *data, u64 val) DEFINE_DEBUGFS_ATTRIBUTE(fops_io_x64, debugfs_io_u64_get, debugfs_io_u64_set, "0x%016llx\n"); -static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode, - struct dentry *parent, u64 __iomem *value) +static void debugfs_create_io_x64(const char *name, umode_t mode, + struct dentry *parent, u64 __iomem *value) { - return debugfs_create_file_unsafe(name, mode, parent, - (void __force *)value, &fops_io_x64); + debugfs_create_file_unsafe(name, mode, parent, (void __force *)value, + &fops_io_x64); } void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir) @@ -54,25 +54,22 @@ void cxl_debugfs_add_adapter_regs_psl8(struct cxl *adapter, struct dentry *dir) debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_TRACE)); } -int cxl_debugfs_adapter_add(struct cxl *adapter) +void cxl_debugfs_adapter_add(struct cxl *adapter) { struct dentry *dir; char buf[32]; if (!cxl_debugfs) - return -ENODEV; + return; snprintf(buf, 32, "card%i", adapter->adapter_num); dir = debugfs_create_dir(buf, cxl_debugfs); - if (IS_ERR(dir)) - return PTR_ERR(dir); adapter->debugfs = dir; debugfs_create_io_x64("err_ivte", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_ErrIVTE)); if (adapter->native->sl_ops->debugfs_add_adapter_regs) adapter->native->sl_ops->debugfs_add_adapter_regs(adapter, dir); - return 0; } void cxl_debugfs_adapter_remove(struct cxl *adapter) @@ -96,18 +93,16 @@ void cxl_debugfs_add_afu_regs_psl8(struct cxl_afu *afu, struct dentry *dir) debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SLICE_TRACE)); } -int cxl_debugfs_afu_add(struct cxl_afu *afu) +void cxl_debugfs_afu_add(struct cxl_afu *afu) { struct dentry *dir; char buf[32]; if (!afu->adapter->debugfs) - return -ENODEV; + return; snprintf(buf, 32, "psl%i.%i", afu->adapter->adapter_num, afu->slice); dir = debugfs_create_dir(buf, afu->adapter->debugfs); - if (IS_ERR(dir)) - return PTR_ERR(dir); afu->debugfs = dir; debugfs_create_io_x64("sr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SR_An)); @@ -118,8 +113,6 @@ int cxl_debugfs_afu_add(struct cxl_afu *afu) if (afu->adapter->native->sl_ops->debugfs_add_afu_regs) afu->adapter->native->sl_ops->debugfs_add_afu_regs(afu, dir); - - return 0; } void cxl_debugfs_afu_remove(struct cxl_afu *afu) @@ -127,19 +120,12 @@ void cxl_debugfs_afu_remove(struct cxl_afu *afu) debugfs_remove_recursive(afu->debugfs); } -int __init cxl_debugfs_init(void) +void __init cxl_debugfs_init(void) { - struct dentry *ent; - if (!cpu_has_feature(CPU_FTR_HVMODE)) - return 0; - - ent = debugfs_create_dir("cxl", NULL); - if (IS_ERR(ent)) - return PTR_ERR(ent); - cxl_debugfs = ent; + return; - return 0; + cxl_debugfs = debugfs_create_dir("cxl", NULL); } void cxl_debugfs_exit(void) |