I've just installed an AHA1542 SCSI card, and when performing a backup,
I'm finding the kernel is spewing out the following message:
Wrong buffer length supplied for request sense (256)
This is because the sense_buffer is 16 bytes, but the buffer supplied
is 256 bytes.
Looking at the 2.4 version of the driver, I see that this message has
been disabled, because scsi_request_sense() provides a buffer of size 256.
The following is a version of the 2.4 patch applied to 2.2. Please apply.
I did notice that aha1740.c also has the same bogus check on the buffer,
but I haven't provided a patch, as this is still present in 2.4, and a
patch for that should also be included.
--- linux-2.2/drivers/scsi/aha1542.c~ Wed Feb 21 10:13:02 2001
+++ linux-2.2/drivers/scsi/aha1542.c Wed Feb 21 10:15:51 2001
@@ -560,7 +560,9 @@
done(SCpnt); return 0;});
if(*cmd == REQUEST_SENSE){
-#ifndef DEBUG
+#if 0
+ /* scsi_request_sense() provides a buffer of size 256,
+ so there is no reason to expect equality */
if (bufflen != sizeof(SCpnt->sense_buffer)) {
printk("Wrong buffer length supplied for request sense (%d)\n",bufflen);
};
--
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