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| author |   Jens Axboe <axboe@kernel.dk> | 2021-08-18 07:28:19 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-08-18 07:28:19 -0600 |
| commit | ca27f5b593b5532f4b3a363daeba45872f381bb2 (patch) | |
| tree | 6f1b095df604d51206bf8d2b8834ab0267787032 /kernel | |
| parent | block: nbd: add sanity check for first_minor (diff) | |
| parent | nvme: remove the unused NVME_NS_* enum (diff) | |
Merge tag 'nvme-5.15-2021-08-18' of git://git.infradead.org/nvme into for-5.15/drivers
Pull NVMe updates from Christoph:
"nvme updates for Linux 5.15.
- suspend improvements for devices with an HMB (Keith Busch)
- handle double completions more gacefull (Sagi Grimberg)
- cleanup the selects for the nvme core code a bit (Sagi Grimberg)
- don't update queue count when failing to set io queues (Ruozhu Li)
- various nvmet connect fixes (Amit Engel)
- cleanup lightnvm leftovers (Keith Busch, me)
- small cleanups (Colin Ian King, Hou Pu)
- add tracing for the Set Features command (Hou Pu)
- CMB sysfs cleanups (Keith Busch)
- add a mutex_destroy call (Keith Busch)"
* tag 'nvme-5.15-2021-08-18' of git://git.infradead.org/nvme: (21 commits)
nvme: remove the unused NVME_NS_* enum
nvme: remove nvm_ndev from ns
nvme: Have NVME_FABRICS select NVME_CORE instead of transport drivers
nvmet: check that host sqsize does not exceed ctrl MQES
nvmet: avoid duplicate qid in connect cmd
nvmet: pass back cntlid on successful completion
nvme-rdma: don't update queue count when failing to set io queues
nvme-tcp: don't update queue count when failing to set io queues
nvme-tcp: pair send_mutex init with destroy
nvme: allow user toggling hmb usage
nvme-pci: disable hmb on idle suspend
nvmet: remove redundant assignments of variable status
nvmet: add set feature tracing support
nvme: add set feature tracing support
nvme-fabrics: remove superfluous nvmf_host_put in nvmf_parse_options
nvme-pci: cmb sysfs: one file, one value
nvme-pci: use attribute group for cmb sysfs
nvme: code command_id with a genctr for use-after-free validation
nvme-tcp: don't check blk_mq_tag_to_rq when receiving pdu data
nvme-pci: limit maximum queue depth to 4095
...
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/params.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/params.c b/kernel/params.c index 2daa2780a92c..8299bd764e42 100644 --- a/kernel/params.c +++ b/kernel/params.c @@ -243,6 +243,24 @@ STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", kstrtoul); STANDARD_PARAM_DEF(ullong, unsigned long long, "%llu", kstrtoull); STANDARD_PARAM_DEF(hexint, unsigned int, "%#08x", kstrtouint); +int param_set_uint_minmax(const char *val, const struct kernel_param *kp, + unsigned int min, unsigned int max) +{ + unsigned int num; + int ret; + + if (!val) + return -EINVAL; + ret = kstrtouint(val, 0, &num); + if (ret) + return ret; + if (num < min || num > max) + return -EINVAL; + *((unsigned int *)kp->arg) = num; + return 0; +} +EXPORT_SYMBOL_GPL(param_set_uint_minmax); + int param_set_charp(const char *val, const struct kernel_param *kp) { if (strlen(val) > 1024) { |