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authorMitch Williams <mitch.a.williams@intel.com>2018-08-20 08:12:30 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2018-08-30 13:53:04 -0700
commit7eb74ff891b4e94b8bac48f648a21e4b94ddee64 (patch)
tree2c2c0c44388d1bbda96af0f196b51fa2aebb0e11 /drivers/net/ethernet/intel/i40e
parenti40evf: Validate the number of queues a PF sends (diff)
downloadlinux-dev-7eb74ff891b4e94b8bac48f648a21e4b94ddee64.tar.xz
linux-dev-7eb74ff891b4e94b8bac48f648a21e4b94ddee64.zip
i40e: use correct length for strncpy
Caught by GCC 8. When we provide a length for strncpy, we should not include the terminating null. So we must tell it one less than the size of the destination buffer. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e')
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_ptp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index 35f2866b38c6..1199f0502d6d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -694,7 +694,8 @@ static long i40e_ptp_create_clock(struct i40e_pf *pf)
if (!IS_ERR_OR_NULL(pf->ptp_clock))
return 0;
- strncpy(pf->ptp_caps.name, i40e_driver_name, sizeof(pf->ptp_caps.name));
+ strncpy(pf->ptp_caps.name, i40e_driver_name,
+ sizeof(pf->ptp_caps.name) - 1);
pf->ptp_caps.owner = THIS_MODULE;
pf->ptp_caps.max_adj = 999999999;
pf->ptp_caps.n_ext_ts = 0;