diff mbox series

[2/9] cxl: Make id check more explicit

Message ID 20210604190541.175602-3-ben.widawsky@intel.com (mailing list archive)
State Not Applicable
Delegated to: Bjorn Helgaas
Headers show
Series Add CXL 2.0 DVSEC Decoding | expand

Commit Message

Ben Widawsky June 4, 2021, 7:05 p.m. UTC 
Currently only type 0 DVSEC caps are handled. Moving this check will
allow more robust type handling in the future.

Should be no functional change.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
---
 ls-ecaps.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/ls-ecaps.c b/ls-ecaps.c
index edb4401..83ca93e 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -690,7 +690,7 @@  cap_rcec(struct device *d, int where)
 }
 
 static void
-cap_dvsec_cxl(struct device *d, int where)
+cap_dvsec_cxl(struct device *d, int id, int where)
 {
   u16 w;
 
@@ -698,6 +698,9 @@  cap_dvsec_cxl(struct device *d, int where)
   if (verbose < 2)
     return;
 
+  if (id != 0)
+    return;
+
   if (!config_fetch(d, where + PCI_CXL_CAP, 12))
     return;
 
@@ -734,8 +737,8 @@  cap_dvsec(struct device *d, int where)
   u16 id = get_conf_long(d, where + PCI_DVSEC_HEADER2);
 
   printf("Vendor=%04x ID=%04x Rev=%d Len=%d", vendor, id, rev, len);
-  if (vendor == PCI_DVSEC_VENDOR_ID_CXL && id == PCI_DVSEC_ID_CXL && len >= 16)
-    cap_dvsec_cxl(d, where);
+  if (vendor == PCI_DVSEC_VENDOR_ID_CXL && len >= 16)
+    cap_dvsec_cxl(d, id, where);
   else
     printf(" <?>\n");
 }