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| author | Dan Williams <dan.j.williams@intel.com> | 2021-09-08 22:12:44 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2021-09-21 13:44:57 -0700 |
| commit | ff56ab9e164d71c4a6ae33fc61ae856faec265a1 (patch) | |
| tree | ea60c66550721dd3e30a8c8d1092168aca880cca | |
| parent | 5a2328f4e872a5bcbb2ff790497f000e8f79b152 (diff) | |
| download | linux-ff56ab9e164d71c4a6ae33fc61ae856faec265a1.tar.gz linux-ff56ab9e164d71c4a6ae33fc61ae856faec265a1.tar.bz2 linux-ff56ab9e164d71c4a6ae33fc61ae856faec265a1.zip | |
cxl/mbox: Convert 'enabled_cmds' to DECLARE_BITMAP
Define enabled_cmds as an embedded member of 'struct cxl_mem' rather
than a pointer to another dynamic allocation.
As this leaves only one user of cxl_cmd_count, just open code it and
delete the helper.
Acked-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/163116436415.2460985.10101824045493194813.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| -rw-r--r-- | drivers/cxl/core/mbox.c | 12 | ||||
| -rw-r--r-- | drivers/cxl/cxlmem.h | 2 |
2 files changed, 2 insertions, 12 deletions
diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 31e183991726..422999740649 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -315,8 +315,6 @@ static int cxl_validate_cmd_from_user(struct cxl_mem *cxlm, return 0; } -#define cxl_cmd_count ARRAY_SIZE(cxl_mem_commands) - int cxl_query_cmd(struct cxl_memdev *cxlmd, struct cxl_mem_query_commands __user *q) { @@ -332,7 +330,7 @@ int cxl_query_cmd(struct cxl_memdev *cxlmd, /* returns the total number if 0 elements are requested. */ if (n_commands == 0) - return put_user(cxl_cmd_count, &q->n_commands); + return put_user(ARRAY_SIZE(cxl_mem_commands), &q->n_commands); /* * otherwise, return max(n_commands, total commands) cxl_command_info @@ -794,14 +792,6 @@ struct cxl_mem *cxl_mem_create(struct device *dev) mutex_init(&cxlm->mbox_mutex); cxlm->dev = dev; - cxlm->enabled_cmds = - devm_kmalloc_array(dev, BITS_TO_LONGS(cxl_cmd_count), - sizeof(unsigned long), - GFP_KERNEL | __GFP_ZERO); - if (!cxlm->enabled_cmds) { - dev_err(dev, "No memory available for bitmap\n"); - return ERR_PTR(-ENOMEM); - } return cxlm; } diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index f5d3326a1d0b..8f59a89a0aab 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -126,7 +126,7 @@ struct cxl_mem { size_t lsa_size; struct mutex mbox_mutex; /* Protects device mailbox and firmware */ char firmware_version[0x10]; - unsigned long *enabled_cmds; + DECLARE_BITMAP(enabled_cmds, CXL_MEM_COMMAND_ID_MAX); struct range pmem_range; struct range ram_range; |