Re: [scsi] scsi: ufs: don't check unsigned type for a negative value
On 2017-03-15 10:26, James Bottomley wrote: 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 Oops, sorry for this. If you haven't already corrected this: Reviewed-by: Subhash Jadavani -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
Re: [scsi] scsi: ufs: don't check unsigned type for a negative value
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
Re: [scsi] scsi: ufs: don't check unsigned type for a negative value
> "Tomas" == Tomas Winkler writes: Tomas> Fix compilation warning drivers/scsi/ufs/ufshcd.c:7645:13: Tomas> warning: comparison of unsigned expression < 0 is always false Tomas> [-Wtype-limits] if ((value < UFS_PM_LVL_0) || (value >= Tomas> UFS_PM_LVL_MAX)) Applied to 4.11/scsi-fixes, thanks! -- Martin K. Petersen Oracle Linux Engineering
Re: [scsi] scsi: ufs: don't check unsigned type for a negative value
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 -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project