i40e: avoid large memcpy by assigning struct
Assign the i40e_pf structure directly instead of using a large memcpy,
which avoids a sparse warning and lets the compiler optimize the copy
since it knows the size of the structure in advance.
Change-ID: I17604e23be2616521eb760290befcb767b52b3f7
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 7aae056..3948587 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -185,9 +185,11 @@
if (i40e_dbg_prep_dump_buf(pf, buflen)) {
p = i40e_dbg_dump_buf;
- len = sizeof(struct i40e_pf);
- memcpy(p, pf, len);
- p += len;
+ /* avoid use of memcpy here due to sparse warning
+ * about copy size.
+ */
+ *((struct i40e_pf *)p) = *pf;
+ p += sizeof(struct i40e_pf);
len = (sizeof(struct i40e_aq_desc)
* pf->hw.aq.num_asq_entries);