From: Alison Schofield alison.schofield@intel.com
[ Upstream commit 453a7fde8031a5192ed2f9646ad048c1a5e930dc ]
In preparation for adding a new caller of cxl_region_find_decoders() teach it to find a decoder from a cxl_endpoint_decoder structure.
Combining switch and endpoint decoder lookup in one function prevents code duplication in call sites.
Update the existing caller.
Signed-off-by: Alison Schofield alison.schofield@intel.com Tested-by: Wonjae Lee wj28.lee@samsung.com Link: https://lore.kernel.org/r/79ae6d72978ef9f3ceec9722e1cb793820553c8e.170673686... Signed-off-by: Dan Williams dan.j.williams@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/cxl/core/region.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index 7bb656237fa0c..764998fe03edc 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -729,12 +729,17 @@ static int match_auto_decoder(struct device *dev, void *data) return 0; }
-static struct cxl_decoder *cxl_region_find_decoder(struct cxl_port *port, - struct cxl_region *cxlr) +static struct cxl_decoder * +cxl_region_find_decoder(struct cxl_port *port, + struct cxl_endpoint_decoder *cxled, + struct cxl_region *cxlr) { struct device *dev; int id = 0;
+ if (port == cxled_to_port(cxled)) + return &cxled->cxld; + if (test_bit(CXL_REGION_F_AUTO, &cxlr->flags)) dev = device_find_child(&port->dev, &cxlr->params, match_auto_decoder); @@ -852,10 +857,7 @@ static int cxl_rr_alloc_decoder(struct cxl_port *port, struct cxl_region *cxlr, { struct cxl_decoder *cxld;
- if (port == cxled_to_port(cxled)) - cxld = &cxled->cxld; - else - cxld = cxl_region_find_decoder(port, cxlr); + cxld = cxl_region_find_decoder(port, cxled, cxlr); if (!cxld) { dev_dbg(&cxlr->dev, "%s: no decoder available\n", dev_name(&port->dev));