Linux SCSI subsystem development
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From: akpm@linux-foundation.org
To: James.Bottomley@HansenPartnership.com
Cc: linux-scsi@vger.kernel.org, akpm@linux-foundation.org,
	rdunlap@xenotime.net, megaraidlinux@lsi.com,
	viro@ZenIV.linux.org.uk
Subject: [patch 2/6] drivers/scsi/megaraid.c: fix sparse warnings
Date: Tue, 10 Jan 2012 15:42:29 -0800	[thread overview]
Message-ID: <20120110234230.58C9F20012E@hpza10.eem.corp.google.com> (raw)

From: Randy Dunlap <rdunlap@xenotime.net>
Subject: drivers/scsi/megaraid.c: fix sparse warnings

Fix sparse warnings of right shift bigger than source value size:

drivers/scsi/megaraid.c:311:65: warning: right shift by bigger than source value
drivers/scsi/megaraid.c:313:65: warning: right shift by bigger than source value
drivers/scsi/megaraid.c:317:67: warning: right shift by bigger than source value
drivers/scsi/megaraid.c:319:67: warning: right shift by bigger than source value

Patch suggestion from email by Al Viro:

"Since both are claimed to be strings, I really suspect that this >> 8 is
misspelled >> 4 and they have a character followed by pair of two-digit
packed decimals in there..."

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Neela Syam Kolli <megaraidlinux@lsi.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/scsi/megaraid.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff -puN drivers/scsi/megaraid.c~drivers-scsi-megaraidc-fix-sparse-warnings drivers/scsi/megaraid.c
--- a/drivers/scsi/megaraid.c~drivers-scsi-megaraidc-fix-sparse-warnings
+++ a/drivers/scsi/megaraid.c
@@ -310,15 +310,15 @@ mega_query_adapter(adapter_t *adapter)
 	if (adapter->product_info.subsysvid == HP_SUBSYS_VID) {
 		sprintf (adapter->fw_version, "%c%d%d.%d%d",
 			 adapter->product_info.fw_version[2],
-			 adapter->product_info.fw_version[1] >> 8,
+			 adapter->product_info.fw_version[1] >> 4,
 			 adapter->product_info.fw_version[1] & 0x0f,
-			 adapter->product_info.fw_version[0] >> 8,
+			 adapter->product_info.fw_version[0] >> 4,
 			 adapter->product_info.fw_version[0] & 0x0f);
 		sprintf (adapter->bios_version, "%c%d%d.%d%d",
 			 adapter->product_info.bios_version[2],
-			 adapter->product_info.bios_version[1] >> 8,
+			 adapter->product_info.bios_version[1] >> 4,
 			 adapter->product_info.bios_version[1] & 0x0f,
-			 adapter->product_info.bios_version[0] >> 8,
+			 adapter->product_info.bios_version[0] >> 4,
 			 adapter->product_info.bios_version[0] & 0x0f);
 	} else {
 		memcpy(adapter->fw_version,
_

             reply	other threads:[~2012-01-10 23:42 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-10 23:42 akpm [this message]
2012-01-11  1:18 ` [patch 2/6] drivers/scsi/megaraid.c: fix sparse warnings adam radford
2012-01-11  1:25   ` James Bottomley
2012-01-11  1:48     ` Andrew Morton
2012-01-11  2:07       ` adam radford
  -- strict thread matches above, loose matches on Subject: below --
2011-11-15 22:58 akpm

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