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cxl/region: Fix port setup uninitialized variable warnings 

0day robot reports:

drivers/cxl/core/region.c:1068 cxl_port_setup_targets() error: uninitialized symbol 'eiw'.
drivers/cxl/core/region.c:1068 cxl_port_setup_targets() error: uninitialized symbol 'peig'.
drivers/cxl/core/region.c:1068 cxl_port_setup_targets() error: uninitialized symbol 'peiw'.

...which are all valid reports. Add debug statement to consume the,
albeit unexpected, errors.

Fixes: 27b3f8d138 ("cxl/region: Program target lists")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165951147487.967013.929590444907251028.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2022-08-02 13:27:44 -07:00
parent 817b279467
commit 8d42854257
1 changed files with 22 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/cxl/core/region.c
View File

@ -987,11 +987,30 @@ static int cxl_port_setup_targets(struct cxl_port *port,
parent_iw = parent_cxld->interleave_ways;
}
granularity_to_cxl(parent_ig, &peig);
ways_to_cxl(parent_iw, &peiw);
rc = granularity_to_cxl(parent_ig, &peig);
if (rc) {
dev_dbg(&cxlr->dev, "%s:%s: invalid parent granularity: %d\n",
dev_name(parent_port->uport),
dev_name(&parent_port->dev), parent_ig);
return rc;
}
rc = ways_to_cxl(parent_iw, &peiw);
if (rc) {
dev_dbg(&cxlr->dev, "%s:%s: invalid parent interleave: %d\n",
dev_name(parent_port->uport),
dev_name(&parent_port->dev), parent_iw);
return rc;
}
iw = cxl_rr->nr_targets;
ways_to_cxl(iw, &eiw);
rc = ways_to_cxl(iw, &eiw);
if (rc) {
dev_dbg(&cxlr->dev, "%s:%s: invalid port interleave: %d\n",
dev_name(port->uport), dev_name(&port->dev), iw);
return rc;
}
if (cxl_rr->nr_targets > 1) {
u32 address_bit = max(peig + peiw, eiw + peig);