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i40e: avoid large memcpy by assigning struct

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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>
This commit is contained in:
Jacob Keller 2016-01-04 10:33:11 -08:00 committed by Jeff Kirsher
parent c40918c3ad
commit 45d043597d
1 changed files with 5 additions and 3 deletions
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8
drivers/net/ethernet/intel/i40e/i40e_debugfs.c
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@ -185,9 +185,11 @@ static ssize_t i40e_dbg_dump_write(struct file *filp,
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);