On 2020/6/24 6:02, Jakub Kicinski wrote: > On Tue, 23 Jun 2020 22:24:09 +0800 Luo bin wrote: >> +int hinic_get_sfp_type(struct hinic_hwdev *hwdev, u8 *data0, u8 *data1) >> +{ >> + u8 sfp_data[STD_SFP_INFO_MAX_SIZE]; >> + u16 len; >> + int err; >> + >> + if (!hwdev || !data0 || !data1) >> + return -EINVAL; > > No need to check these, callers are correct. We don't do defensive > programming in the kernel. > Will fix. Thank you for your review. >> + return 0; > > double space Will fix. Thank you for your review.