From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: Re: [scsi] scsi: ufs: don't check unsigned type for a negative value Date: Wed, 15 Mar 2017 10:26:42 -0700 Message-ID: <1489598802.2387.25.camel@HansenPartnership.com> References: <20170312102202.9889-1-tomas.winkler@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Subhash Jadavani , Tomas Winkler Cc: "Martin K . Petersen" , Vinayak Holikatti , Christoph Hellwig , Yaniv Gardi , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-scsi@vger.kernel.org On Mon, 2017-03-13 at 17:19 -0700, Subhash Jadavani wrote: > On 2017-03-12 03:22, Tomas Winkler wrote: > > Fix compilation warning > > > > drivers/scsi/ufs/ufshcd.c:7645:13: warning: comparison of unsigned > > expression < 0 is always false [-Wtype-limits] > > if ((value < UFS_PM_LVL_0) || (value >= UFS_PM_LVL_MAX)) > > > > Signed-off-by: Tomas Winkler > > --- > > drivers/scsi/ufs/ufshcd.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c > > index 1359913bf840..e8c26e6e6237 100644 > > --- a/drivers/scsi/ufs/ufshcd.c > > +++ b/drivers/scsi/ufs/ufshcd.c > > @@ -7642,7 +7642,7 @@ static inline ssize_t > > ufshcd_pm_lvl_store(struct > > device *dev, > > if (kstrtoul(buf, 0, &value)) > > return -EINVAL; > > > > - if ((value < UFS_PM_LVL_0) || (value >= UFS_PM_LVL_MAX)) > > + if (value >= UFS_PM_LVL_MAX) > > return -EINVAL; > > > > spin_lock_irqsave(hba->host->host_lock, flags); > > LGTM. > Reviewed-by: Subhash Jadavani Mis-spelling someone else's email can be cut and paste; mis-spelling your own might be the early indications of an identity crisis. We do cut and paste these tags, so getting your own name right for the purposes of git history is useful. James