From 8eb92a65826ed93c14e50778ca8bb22b4b264c85 Mon Sep 17 00:00:00 2001
From: Vladislav Bolkhovitin <vst@vlnb.net>
Date: Fri, 16 May 2008 10:29:34 +0000
Subject: [PATCH] Patch from Bart Van Assche <bart.vanassche@gmail.com>:

I don't know when this was broken, but with the current SVN version, after
having generated and applied a kernel patch for SCST, iscsi-scst doesn't
build anymore. The patch below fixes this and also includes a cleanup patch
for the generate-kernel-patch'>generate-kernel-patch script. The generated kernel patch has been
tested with the 2.6.24 and 2.6.25.4 kernels (extracted kernel sources +
applied patch + built kernel + installed kernel + reboot + load SCST
modules).

Signed-off-by: <bart.vanassche@gmail.com>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@375 d57e44dd-8a1f-0410-8b47-8ef2f437770f
---
 scripts/generate-kernel-patch     | 105 ++++++++++++++----------------
 scst/kernel/in-tree/Makefile.scst |   2 +-
 2 files changed, 50 insertions(+), 57 deletions(-)

diff --git a/scripts/generate-kernel-patch b/scripts/generate-kernel-patch
index 5ecc1a048..21a92280e 100755
--- a/scripts/generate-kernel-patch
+++ b/scripts/generate-kernel-patch
@@ -32,7 +32,9 @@ function add_patch {
     exit 1
   fi
 
-  sed -e "s:^--- [^ ]*:--- orig/$2:" -e "s:^+++ [^ ]*:+++ $2:" < "$1"
+  sed -e "s:^--- [^ ]*:--- orig/linux-${kernel_version}/$2:" \
+      -e "s:^+++ [^ ]*:+++ linux-${kernel_version}/$2:"      \
+      < "$1"
 }
 
 # Generate a patch for a file to be added to the kernel source tree, and strip
@@ -48,21 +50,20 @@ function add_file {
     exit 1
   fi
 
-  # Skip any files generated by the kernel build process (*.mod.c).
-  if [ "${1%.mod.c}" != "$1" ]; then
-    return 0;
-  fi
-
-  cat <<EOF
-diff -uprN orig/$2 $2
---- orig/$2
-+++ $2
+  # Only include files that were not generated by the build process
+  # -- skip *.mod.c.
+  if [ "$1" = "${1%.mod.c}" -a "$1" ]; then
+    cat <<EOF
+diff -uprN orig/linux-${kernel_version}/$2 linux-${kernel_version}/$2
+--- orig/linux-${kernel_version}/$2
++++ linux-${kernel_version}/$2
 @@ -0,0 +1,$(wc -l "$1" | { read a b; echo $a; }) @@
 EOF
-  if [ "${2%.[ch]}" != "$2" ]; then
-    sed -e 's/^/+/' -e 's/[ 	]*$//g' < "$1"
-  else
-    sed -e 's/^/+/' < "$1"
+    if [ "${2%.[ch]}" != "$2" ]; then
+      sed -e 's/^/+/' -e 's/[ 	]*$//g' < "$1"
+    else
+      sed -e 's/^/+/' < "$1"
+    fi
   fi
 }
 
@@ -104,79 +105,71 @@ done
 
 # General kernel patches.
 
-for p in "${kpatch[@]}"
-do
-  cat "$p"
-  echo ''
-  echo ''
-done
+cat "${kpatch[@]}"
 
 
 # Directory include/scst/
 
+# Make sure the file iscsi-scst/iscsi_scst_itf_ver.h is up to date.
+make -C iscsi-scst include/iscsi_scst_itf_ver.h
+
 for f in scst/include/*h
 do
-  add_file "${f}" "linux-${kernel_version}/include/scst/${f#scst/include/}"
+  add_file "${f}" "include/scst/${f#scst/include/}"
 done
 
 for f in iscsi-scst/include/*h
 do
-add_file "${f}" "linux-${kernel_version}/include/scst/${f#iscsi-scst/include/}"
+  add_file "${f}" "include/scst/${f#iscsi-scst/include/}"
 done
 
 
 # Directory drivers/
 
 add_patch "scst/kernel/in-tree/Kconfig.drivers.Linux-${kernel_version}.patch" \
-          "linux-${kernel_version}/drivers/Kconfig"
+          "drivers/Kconfig"
 
 add_patch "scst/kernel/in-tree/Makefile.drivers.Linux-${kernel_version}.patch"\
-          "linux-${kernel_version}/drivers/Makefile"
+          "drivers/Makefile"
 
 
 # Directory drivers/scst/
 
-add_file "scst/kernel/in-tree/Kconfig.scst" \
-         "linux-${kernel_version}/drivers/scst/Kconfig"
-add_file "scst/kernel/in-tree/Makefile.scst" \
-         "linux-${kernel_version}/drivers/scst/Makefile"
+add_file "scst/kernel/in-tree/Kconfig.scst"  "drivers/scst/Kconfig"
 
+add_file "scst/kernel/in-tree/Makefile.scst" "drivers/scst/Makefile"
+
+add_file "scst/README"                       "Documentation/scst/README.scst"
 
 for f in scst/src/*.[ch]
 do
-  add_file ${f} linux-${kernel_version}/drivers/scst/${f#scst/src/}
-  echo ''
-  echo ''
+  add_file "${f}" "drivers/scst/${f#scst/src/}"
 done
 
 
 # Directory drivers/scst/dev_handlers/
 
 add_file "scst/kernel/in-tree/Makefile.dev_handlers" \
-         "linux-${kernel_version}/drivers/scst/dev_handlers/Makefile"
+         "drivers/scst/dev_handlers/Makefile"
 
 for f in scst/src/dev_handlers/*.[ch]
 do
-  add_file ${f} linux-${kernel_version}/drivers/scst/dev_handlers/${f#scst/src/dev_handlers/}
-  echo ''
-  echo ''
+  add_file "${f}" "drivers/scst/dev_handlers/${f#scst/src/dev_handlers/}"
 done
 
 
 # Directory drivers/scst/iscsi-scst/
 
 add_file "iscsi-scst/kernel/Makefile.in-kernel" \
-         "linux-${kernel_version}/drivers/scst/iscsi-scst/Makefile"
+         "drivers/scst/iscsi-scst/Makefile"
 
-add_file "iscsi-scst/kernel/Kconfig" \
-         "linux-${kernel_version}/drivers/scst/iscsi-scst/Kconfig"
+add_file "iscsi-scst/kernel/Kconfig"  "drivers/scst/iscsi-scst/Kconfig"
+
+add_file "iscsi-scst/README"          "Documentation/scst/README.iscsi"
 
 for f in iscsi-scst/kernel/*.[ch]
 do
-  add_file "${f}" \
-      "linux-${kernel_version}/drivers/scst/iscsi-scst/${f#iscsi-scst/kernel/}"
-  echo ''
-  echo ''
+  add_file "${f}" "drivers/scst/iscsi-scst/${f#iscsi-scst/kernel/}"
 done
 
 
@@ -185,20 +178,20 @@ done
 if false; then
 
 add_file "qla2x00t/qla2x00-target/Makefile.in-kernel" \
-         "linux-${kernel_version}/drivers/scst/qla2x00-target/Makefile"
+         "drivers/scst/qla2x00-target/Makefile"
 
 add_file "qla2x00t/qla2x00-target/Kconfig" \
-         "linux-${kernel_version}/drivers/scst/qla2x00-target/Kconfig"
+         "drivers/scst/qla2x00-target/Kconfig"
 
 add_file "qla2x00t/qla2x_tgt_def.h" \
-         "linux-${kernel_version}/drivers/scst/qla2x00-target/qla2x_tgt_def.h"
+         "drivers/scst/qla2x00-target/qla2x_tgt_def.h"
+
+add_file "qla2x00t/qla2x00-target/README" \
+         "Documentation/scst/README.qla2x00t"
 
 for f in qla2x00t/qla2x00-target/*.[ch]
 do
-  add_file "${f}" \
-      "linux-${kernel_version}/drivers/scst/qla2x00-target/${f#qla2x00t/qla2x00-target/}"
-  echo ''
-  echo ''
+  add_file "${f}" "drivers/scst/qla2x00-target/${f#qla2x00t/qla2x00-target/}"
 done
 
 fi
@@ -207,18 +200,18 @@ fi
 # Directory drivers/infiniband/ulp/srpt/
 
 add_patch "srpt/src/Kconfig.infiniband.Linux-${kernel_version}.patch" \
-          "linux-${kernel_version}/drivers/infiniband/Kconfig"
+          "drivers/infiniband/Kconfig"
 
 add_patch "srpt/src/Makefile.infiniband.Linux-${kernel_version}.patch" \
-          "linux-${kernel_version}/drivers/infiniband/Makefile"
+          "drivers/infiniband/Makefile"
 
-add_file "srpt/src/Kconfig" "drivers/infiniband/ulp/srpt/Kconfig"
+add_file  "srpt/src/Kconfig"            "drivers/infiniband/ulp/srpt/Kconfig"
 
-add_file "srpt/src/Makefile.in_kernel" "drivers/infiniband/ulp/srpt/Makefile"
+add_file  "srpt/src/Makefile.in_kernel" "drivers/infiniband/ulp/srpt/Makefile"
+
+add_file  "srpt/README"                 "Documentation/scst/README.srpt"
 
 for f in srpt/src/*.[ch]
 do
-  add_file ${f} linux-${kernel_version}/drivers/infiniband/ulp/srpt/${f#srpt/src/}
-  echo ''
-  echo ''
+  add_file "${f}" "drivers/infiniband/ulp/srpt/${f#srpt/src/}"
 done
diff --git a/scst/kernel/in-tree/Makefile.scst b/scst/kernel/in-tree/Makefile.scst
index 5fcb58c60..01759cfc6 100644
--- a/scst/kernel/in-tree/Makefile.scst
+++ b/scst/kernel/in-tree/Makefile.scst
@@ -7,5 +7,5 @@ scst-y        += scst_proc.o
 scst-y        += scst_mem.o
 scst-y        += scst_debug.o
 
-obj-$(CONFIG_SCSI_TARGET)   += scst.o dev_handlers/
+obj-$(CONFIG_SCSI_TARGET)   += scst.o dev_handlers/ iscsi-scst/