Re: [Patch] fix <scsi/scsi.h> for userland

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On Thursday 03 December 2009, Greg KH wrote:
> On Thu, Dec 03, 2009 at 12:31:39AM +0100, Torsten Duwe wrote:
> > Hi Greg!
> >
> > When I recompiled my system yesterday with includes from the latest
> > stable kernel(s) I found especially CD IO and similar breaking due to
> > <scsi/scsi.h>. At least 2.6.32-rc8 and 2.6.31.6 need fixing. Please apply
> > attached patch or equivalent.
>
> Is the patch upstream already?
>
> If not, please send this to the scsi maintainer, it needs to be there
> before I can apply it to the -stable releases.

Given that 2.6.32-rc8 and 2.6.31.6 are affected I don't think so. Resending.
linux-scsi, feel free to ignore this if it's already fixed. Otherwise:

Signed-off-by: Torsten Duwe <duwe@xxxxxx>
--- linux-2.6.31/include/scsi/scsi.h.orig	2009-09-10 00:13:59.000000000 +0200
+++ linux-2.6.31/include/scsi/scsi.h	2009-12-02 01:00:34.000000000 +0100
@@ -142,10 +142,10 @@ struct scsi_cmnd;
 
 /* defined in T10 SCSI Primary Commands-2 (SPC2) */
 struct scsi_varlen_cdb_hdr {
-	u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
-	u8 control;
-	u8 misc[5];
-	u8 additional_cdb_length;         /* total cdb length - 8 */
+	__u8 opcode;        /* opcode always == VARIABLE_LENGTH_CMD */
+	__u8 control;
+	__u8 misc[5];
+	__u8 additional_cdb_length;         /* total cdb length - 8 */
 	__be16 service_action;
 	/* service specific data follows */
 };
@@ -156,6 +156,7 @@ scsi_varlen_cdb_length(const void *hdr)
 	return ((struct scsi_varlen_cdb_hdr *)hdr)->additional_cdb_length + 8;
 }
 
+#ifdef __KERNEL__
 extern const unsigned char scsi_command_size_tbl[8];
 #define COMMAND_SIZE(opcode) scsi_command_size_tbl[((opcode) >> 5) & 7]
 
@@ -165,6 +166,7 @@ scsi_command_size(const unsigned char *c
 	return (cmnd[0] == VARIABLE_LENGTH_CMD) ?
 		scsi_varlen_cdb_length(cmnd) : COMMAND_SIZE(cmnd[0]);
 }
+#endif
 
 /*
  *  SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft

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