On Tue, May 20, 2014 at 10:06:42AM -0700, Joe Perches wrote: > On Tue, 2014-05-20 at 18:48 +0200, Fabian Frederick wrote: > > Cc: Kurt Garloff <[email protected]> > > Cc: Andrew Morton <[email protected]> > > Signed-off-by: Fabian Frederick <[email protected]> > > --- > > drivers/scsi/tmscsim.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c > [] > > @@ -1611,7 +1611,7 @@ dc390_Reselect( struct dc390_acb* pACB ) > > printk (KERN_ERR "DC390: Reselection must select host adapter: > > %02x!\n", lun); > > else > > lun ^= 1 << pACB->pScsiHost->this_id; /* Mask AdapterID */ > > - id = 0; while (lun >>= 1) id++; > > + id = ilog2(lun); > > /* Get LUN */ > > lun = DC390_read8 (ScsiFifo); > > if (!(lun & IDENTIFY_BASE)) printk (KERN_ERR "DC390: Resel: Expect > > identify message!\n"); > > Hey Fabian. > > You've submitted several of these now. > > Have you gone through all of these to make sure > that the ilog2(<foo>) uses are always using a > non-zero <foo>? > Maybe I am missing something. Why not just use fls() ?
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