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cxl/pci: Delay event buffer allocation

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The event buffer does not need to be allocated if something has failed in
setting up event irq's.

In prep for adjusting event configuration for DCD events move the buffer
allocation to the end of the event configuration.

Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Li Ming <ming4.li@intel.com>
Link: https://lore.kernel.org/all/663922b475e50_d54d72945b@dwillia2-xfh.jf.intel.com.notmuch/ [1]
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20241107-dcd-type2-upstream-v7-4-56a84e66bc36@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Ira Weiny 2024-11-07 14:58:22 -06:00 committed by Dave Jiang
parent f88b3ecc9c
commit 0f6f0d687a
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/cxl/pci.c
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@ -764,10 +764,6 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge,
return 0;
}
rc = cxl_mem_alloc_event_buf(mds);
if (rc)
return rc;
rc = cxl_event_get_int_policy(mds, &policy);
if (rc)
return rc;
@ -781,6 +777,10 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge,
return -EBUSY;
}
rc = cxl_mem_alloc_event_buf(mds);
if (rc)
return rc;
rc = cxl_event_irqsetup(mds);
if (rc)
return rc;