On Tue, 24 Aug 2021 09:07:07 -0700 Dan Williams <[email protected]> wrote:
> 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 <[email protected]> > Signed-off-by: Dan Williams <[email protected]> Nice Reviewed-by: Jonathan Cameron <[email protected]> > --- > drivers/cxl/core/mbox.c | 10 +--------- > drivers/cxl/cxlmem.h | 2 +- > 2 files changed, 2 insertions(+), 10 deletions(-) > > diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c > index 706fe007c8d6..73107b302224 100644 > --- a/drivers/cxl/core/mbox.c > +++ b/drivers/cxl/core/mbox.c > @@ -324,8 +324,6 @@ 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) > { > @@ -341,7 +339,7 @@ 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 > @@ -805,12 +803,6 @@ 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) > - return ERR_PTR(-ENOMEM); > > return cxlm; > } > diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h > index b7122ded3a04..df4f3636a999 100644 > --- a/drivers/cxl/cxlmem.h > +++ b/drivers/cxl/cxlmem.h > @@ -116,7 +116,7 @@ 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; >
