>-----Original Message----- >From: Dan Carpenter [mailto:error27@xxxxxxxxx] >Sent: Wednesday, July 06, 2011 12:40 AM >To: Jing Huang >Cc: James E.J. Bottomley; open list:BROCADE BFA FC SC...; linux- >kernel@xxxxxxxxxxxxxxx; kernel-janitors@xxxxxxxxxxxxxxx >Subject: [patch 2/2] [SCSI] bfa: test is always false in bfa_sfp_media_get() > >e10g.r.e10g_unall is only 1 bit so "if (e10g.r.e10g_unall & 0x80)" >is always false. e10g is a union between an unsigned char and named >bitfields. The intent here was to test the named bitfield by >itself. > >We can change the previous tests as well. That improves the >readability and it looks like it fixes a endian bug as well. > >Signed-off-by: Dan Carpenter <error27@xxxxxxxxx> >--- >I don't understand where __BIGENDIAN is defined. Only this driver >references it. How does that work? > >diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c >index 052373b..090a19d 100644 >--- a/drivers/scsi/bfa/bfa_ioc.c >+++ b/drivers/scsi/bfa/bfa_ioc.c >@@ -3589,11 +3589,11 @@ bfa_sfp_media_get(struct bfa_sfp_s *sfp) > (xmtr_tech & SFP_XMTR_TECH_SA)) > *media = BFA_SFP_MEDIA_SW; > /* Check 10G Ethernet Compilance code */ >- else if (e10g.b & 0x10) >+ else if (e10g.r.e10g_sr) > *media = BFA_SFP_MEDIA_SW; >- else if (e10g.b & 0x60) >+ else if (e10g.r.e10g_lr && e10g.r.e10g_lrm) > *media = BFA_SFP_MEDIA_LW; >- else if (e10g.r.e10g_unall & 0x80) >+ else if (e10g.r.e10g_unall) > *media = BFA_SFP_MEDIA_UNKNOWN; > else > bfa_trc(sfp, 0); Hi Dan, __BIGENIDIAN is a bug and it needs to be replaced with __BIG_ENDIAN. The first two changes will introduce endianness issue without having __BIGENDIAN fixed. The third change is good but also needs the same fix to make the code endianness netural,. Thanks Jing -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
