configure: Remove "26" from Linux variable names.

OVS used to support Linux 2.4 and Linux 2.6, but now it only supports
Linux 2.6.  Linux 3.0 is coming up, and it's just an evolution of 2.6, so
OVS should stop referring to it as "2.6".

This takes a first step by removing "26" from internal variable names.
There should be no user-visible changes.

diff --git a/acinclude.m4 b/acinclude.m4
index 3cf4061..2c9b10a 100644 (file)
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -25,93 +25,93 @@ AC_DEFUN([OVS_ENABLE_WERROR],
         CFLAGS="$CFLAGS -Werror"
       fi])])
 
-dnl OVS_CHECK_LINUX26
+dnl OVS_CHECK_LINUX
 dnl
 dnl Configure linux kernel source tree 
-AC_DEFUN([OVS_CHECK_LINUX26], [
+AC_DEFUN([OVS_CHECK_LINUX], [
   AC_ARG_WITH([l26],
               [AC_HELP_STRING([--with-l26=/path/to/linux-2.6],
                               [Specify the linux 2.6 kernel build directory])],
-              [KBUILD26="$withval"], [KBUILD26=])dnl
+              [KBUILD="$withval"], [KBUILD=])dnl
   AC_ARG_WITH([l26-source],
               [AC_HELP_STRING([--with-l26-source=/path/to/linux-2.6-source],
                               [Specify the linux 2.6 kernel source directory
                               (usually figured out automatically from build
                               directory)])],
-              [KSRC26="$withval"], [KSRC26=])dnl
-  if test -n "$KBUILD26"; then
-    KBUILD26=`eval echo "$KBUILD26"`
-    case $KBUILD26 in
+              [KSRC="$withval"], [KSRC=])dnl
+  if test -n "$KBUILD"; then
+    KBUILD=`eval echo "$KBUILD"`
+    case $KBUILD in
         /*) ;;
-        *) KBUILD26=`pwd`/$KBUILD26 ;;
+        *) KBUILD=`pwd`/$KBUILD ;;
     esac
 
     # The build directory is what the user provided.
     # Make sure that it exists.
     AC_MSG_CHECKING([for Linux 2.6 build directory])
-    if test -d "$KBUILD26"; then
-       AC_MSG_RESULT([$KBUILD26])
-       AC_SUBST(KBUILD26)
+    if test -d "$KBUILD"; then
+       AC_MSG_RESULT([$KBUILD])
+       AC_SUBST(KBUILD)
     else
        AC_MSG_RESULT([no])
-       AC_ERROR([source dir $KBUILD26 doesn't exist])
+       AC_ERROR([source dir $KBUILD doesn't exist])
     fi
 
     # Debian breaks kernel headers into "source" header and "build" headers.
-    # We want the source headers, but $KBUILD26 gives us the "build" headers.
+    # We want the source headers, but $KBUILD gives us the "build" headers.
     # Use heuristics to find the source headers.
     AC_MSG_CHECKING([for Linux 2.6 source directory])
-    if test -n "$KSRC26"; then
-      KSRC26=`eval echo "$KSRC26"`
-      case $KSRC26 in
+    if test -n "$KSRC"; then
+      KSRC=`eval echo "$KSRC"`
+      case $KSRC in
           /*) ;;
-          *) KSRC26=`pwd`/$KSRC26 ;;
+          *) KSRC=`pwd`/$KSRC ;;
       esac
-      if test ! -e $KSRC26/include/linux/kernel.h; then
-        AC_MSG_ERROR([$KSRC26 is not a kernel source directory)])
+      if test ! -e $KSRC/include/linux/kernel.h; then
+        AC_MSG_ERROR([$KSRC is not a kernel source directory)])
       fi
     else
-      KSRC26=$KBUILD26
-      if test ! -e $KSRC26/include/linux/kernel.h; then
-       case `echo "$KBUILD26" | sed 's,/*$,,'` in # (
+      KSRC=$KBUILD
+      if test ! -e $KSRC/include/linux/kernel.h; then
+       case `echo "$KBUILD" | sed 's,/*$,,'` in # (
          */build)
-           KSRC26=`echo "$KBUILD26" | sed 's,/build/*$,/source,'`
+           KSRC=`echo "$KBUILD" | sed 's,/build/*$,/source,'`
            ;; # (
          *)
-           KSRC26=`(cd $KBUILD26 && pwd -P) | sed 's,-[[^-]]*$,-common,'`
+           KSRC=`(cd $KBUILD && pwd -P) | sed 's,-[[^-]]*$,-common,'`
            ;;
        esac
       fi
-      if test ! -e $KSRC26/include/linux/kernel.h; then
+      if test ! -e $KSRC/include/linux/kernel.h; then
         AC_MSG_ERROR([cannot find source directory (please use --with-l26-source)])
       fi
     fi
-    AC_MSG_RESULT([$KSRC26])
+    AC_MSG_RESULT([$KSRC])
 
     AC_MSG_CHECKING([for kernel version])
-    patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC26/Makefile"`
-    sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC26/Makefile"`
+    patchlevel=`sed -n 's/^PATCHLEVEL = //p' "$KSRC/Makefile"`
+    sublevel=`sed -n 's/^SUBLEVEL = //p' "$KSRC/Makefile"`
     if test -z "$patchlevel" || test -z "$sublevel"; then
        AC_ERROR([cannot determine kernel version])
     fi
     AC_MSG_RESULT([2.$patchlevel.$sublevel])
     if test "2.$patchlevel" != '2.6'; then
-       if test "$KBUILD26" = "$KSRC26"; then
-         AC_ERROR([Linux kernel in $KBUILD26 is not version 2.6])
+       if test "$KBUILD" = "$KSRC"; then
+         AC_ERROR([Linux kernel in $KBUILD is not version 2.6])
        else
-         AC_ERROR([Linux kernel in build tree $KBUILD26 (source tree $KSRC26) is not version 2.6])
+         AC_ERROR([Linux kernel in build tree $KBUILD (source tree $KSRC) is not version 2.6])
        fi
     fi
-    if test ! -e "$KBUILD26"/include/linux/version.h || \
-       (test ! -e "$KBUILD26"/include/linux/autoconf.h && \
-        test ! -e "$KBUILD26"/include/generated/autoconf.h); then
-       AC_MSG_ERROR([Linux kernel source in $KBUILD26 is not configured])
+    if test ! -e "$KBUILD"/include/linux/version.h || \
+       (test ! -e "$KBUILD"/include/linux/autoconf.h && \
+        test ! -e "$KBUILD"/include/generated/autoconf.h); then
+       AC_MSG_ERROR([Linux kernel source in $KBUILD is not configured])
     fi
-    OVS_CHECK_LINUX26_COMPAT
-  elif test -n "$KSRC26"; then
+    OVS_CHECK_LINUX_COMPAT
+  elif test -n "$KSRC"; then
     AC_MSG_ERROR([--with-l26-source may not be specified without --with-l26])
   fi
-  AM_CONDITIONAL(L26_ENABLED, test -n "$KBUILD26")
+  AM_CONDITIONAL(LINUX_ENABLED, test -n "$KBUILD")
 ])
 
 dnl OVS_GREP_IFELSE(FILE, REGEX, [IF-MATCH], [IF-NO-MATCH])
@@ -151,8 +151,8 @@ AC_DEFUN([OVS_DEFINE], [
 ])
 
 AC_DEFUN([OVS_CHECK_LOG2_H], [
-  AC_MSG_CHECKING([for $KSRC26/include/linux/log2.h])
-  if test -e $KSRC26/include/linux/log2.h; then
+  AC_MSG_CHECKING([for $KSRC/include/linux/log2.h])
+  if test -e $KSRC/include/linux/log2.h; then
     AC_MSG_RESULT([yes])
     OVS_DEFINE([HAVE_LOG2_H])
   else
@@ -160,28 +160,28 @@ AC_DEFUN([OVS_CHECK_LOG2_H], [
   fi
 ])
 
-dnl OVS_CHECK_LINUX26_COMPAT
+dnl OVS_CHECK_LINUX_COMPAT
 dnl
 dnl Runs various Autoconf checks on the Linux 2.6 kernel source in
-dnl the directory in $KBUILD26.
-AC_DEFUN([OVS_CHECK_LINUX26_COMPAT], [
+dnl the directory in $KBUILD.
+AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
   rm -f datapath/linux-2.6/kcompat.h.new
   mkdir -p datapath/linux-2.6
   : > datapath/linux-2.6/kcompat.h.new
 
-  OVS_GREP_IFELSE([$KSRC26/arch/x86/include/asm/checksum_32.h], [src_err,],
+  OVS_GREP_IFELSE([$KSRC/arch/x86/include/asm/checksum_32.h], [src_err,],
                   [OVS_DEFINE([HAVE_CSUM_COPY_DBG])])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/err.h], [ERR_CAST])
+  OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/in.h], [ipv4_is_multicast])
+  OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/netdevice.h], [dev_disable_lro])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/netdevice.h], [dev_get_stats])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/netdevice.h], [dev_get_by_index_rcu])
+  OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro])
+  OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_stats])
+  OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_get_by_index_rcu])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/rcupdate.h], [rcu_read_lock_held], [],
-                  [OVS_GREP_IFELSE([$KSRC26/include/linux/rtnetlink.h],
+  OVS_GREP_IFELSE([$KSRC/include/linux/rcupdate.h], [rcu_read_lock_held], [],
+                  [OVS_GREP_IFELSE([$KSRC/include/linux/rtnetlink.h],
                                    [rcu_read_lock_held])])
   
   # Check for the proto_data_valid member in struct sk_buff.  The [^@]
@@ -189,41 +189,41 @@ AC_DEFUN([OVS_CHECK_LINUX26_COMPAT], [
   # member but retain the kerneldoc comment that describes it (which
   # starts with @).  The brackets must be doubled because of m4
   # quoting rules.
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [[[^@]]proto_data_valid],
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [[[^@]]proto_data_valid],
                   [OVS_DEFINE([HAVE_PROTO_DATA_VALID])])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [raw],
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [raw],
                   [OVS_DEFINE([HAVE_MAC_RAW])])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_dst(],
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_dst(],
                   [OVS_DEFINE([HAVE_SKB_DST_ACCESSOR_FUNCS])])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], 
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], 
                   [skb_copy_from_linear_data_offset])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_cow_head])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_transport_header],
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_cow_head])
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_transport_header],
                   [OVS_DEFINE([HAVE_SKBUFF_HEADER_HELPERS])])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/icmpv6.h], [icmp6_hdr],
+  OVS_GREP_IFELSE([$KSRC/include/linux/icmpv6.h], [icmp6_hdr],
                   [OVS_DEFINE([HAVE_ICMP6_HDR])])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_warn_if_lro],
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_warn_if_lro],
                   [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [consume_skb])
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/string.h], [kmemdup], [],
-                  [OVS_GREP_IFELSE([$KSRC26/include/linux/slab.h], [kmemdup])])
+  OVS_GREP_IFELSE([$KSRC/include/linux/string.h], [kmemdup], [],
+                  [OVS_GREP_IFELSE([$KSRC/include/linux/slab.h], [kmemdup])])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/types.h], [bool],
+  OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [bool],
                   [OVS_DEFINE([HAVE_BOOL_TYPE])])
-  OVS_GREP_IFELSE([$KSRC26/include/linux/types.h], [__wsum],
+  OVS_GREP_IFELSE([$KSRC/include/linux/types.h], [__wsum],
                   [OVS_DEFINE([HAVE_CSUM_TYPES])])
 
-  OVS_GREP_IFELSE([$KSRC26/include/net/checksum.h], [csum_replace4])
-  OVS_GREP_IFELSE([$KSRC26/include/net/checksum.h], [csum_unfold])
+  OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_replace4])
+  OVS_GREP_IFELSE([$KSRC/include/net/checksum.h], [csum_unfold])
 
-  OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [NLA_NUL_STRING])
-  OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [nla_get_be16])
-  OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [nla_find_nested])
+  OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [NLA_NUL_STRING])
+  OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16])
+  OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_find_nested])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/if_link.h], [rtnl_link_stats64])
+  OVS_GREP_IFELSE([$KSRC/include/linux/if_link.h], [rtnl_link_stats64])
 
-  OVS_GREP_IFELSE([$KSRC26/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD],
+  OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [ADD_ALL_VLANS_CMD],
                   [OVS_DEFINE([HAVE_VLAN_BUG_WORKAROUND])])
 
   OVS_CHECK_LOG2_H

diff --git a/configure.ac b/configure.ac
index dde42e0..0cf6863 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -90,7 +90,7 @@ OVS_ENABLE_SPARSE
 
 AC_ARG_VAR(KARCH, [Kernel Architecture String])
 AC_SUBST(KARCH)
-OVS_CHECK_LINUX26
+OVS_CHECK_LINUX
 
 AC_CONFIG_FILES([Makefile 
 datapath/Makefile 

diff --git a/datapath/Makefile.am b/datapath/Makefile.am
index 1c0af40..5c5bc21 100644 (file)
--- a/datapath/Makefile.am
+++ b/datapath/Makefile.am
@@ -1,5 +1,5 @@
 SUBDIRS = 
-if L26_ENABLED
+if LINUX_ENABLED
 SUBDIRS += linux-2.6
 endif
 

diff --git a/datapath/linux-2.6/Makefile.main.in b/datapath/linux-2.6/Makefile.main.in
index 74bed78..a868cb6 100644 (file)
--- a/datapath/linux-2.6/Makefile.main.in
+++ b/datapath/linux-2.6/Makefile.main.in
@@ -2,7 +2,7 @@
 export builddir = @abs_builddir@
 export srcdir = @abs_srcdir@
 export top_srcdir = @abs_top_srcdir@
-export KSRC = @KBUILD26@
+export KSRC = @KBUILD@
 export VERSION = @VERSION@
 
 include $(srcdir)/../Modules.mk