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-rw-r--r--0004-Linux-Add-AC_CHECK_LINUX_OPERATION-configure-macro.patch56
1 files changed, 56 insertions, 0 deletions
diff --git a/0004-Linux-Add-AC_CHECK_LINUX_OPERATION-configure-macro.patch b/0004-Linux-Add-AC_CHECK_LINUX_OPERATION-configure-macro.patch
new file mode 100644
index 00000000000..79a95229c62
--- /dev/null
+++ b/0004-Linux-Add-AC_CHECK_LINUX_OPERATION-configure-macro.patch
@@ -0,0 +1,56 @@
+From ec8c1a258c18a07171f5316f5150da9b15ad53c3 Mon Sep 17 00:00:00 2001
+From: Marc Dionne <marc.dionne@your-file-system.com>
+Date: Mon, 6 Jul 2015 12:00:10 -0300
+Subject: [PATCH 4/6] Linux: Add AC_CHECK_LINUX_OPERATION configure macro
+
+Add a new macro to check the signature of a particular
+operation against a provided typed argument list.
+One of the arguments is an arbitrary label that is used
+to construct the pre-processor define name. This will
+allow for testing of different forms for the same
+operation.
+
+This can be used to replace many of the remaining odd
+checks in src/cf/linux_test4.m4.
+
+Reviewed-on: http://gerrit.openafs.org/11927
+Tested-by: BuildBot <buildbot@rampaginggeek.com>
+Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
+(cherry picked from commit c2c0b6bc86c6d67814d0f7fe14fa8eefc445b4a4)
+
+Change-Id: Id929412d87bb9fc38b2b599abbe3fddca3cda4b1
+Reviewed-on: http://gerrit.openafs.org/11950
+Tested-by: BuildBot <buildbot@rampaginggeek.com>
+Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
+Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
+(cherry picked from commit dfcf0b348886b4a97d2c8a8b90eae98ad9e25834)
+---
+ src/cf/linux-test1.m4 | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+diff --git a/src/cf/linux-test1.m4 b/src/cf/linux-test1.m4
+index f7176d2..fd5bfd8 100644
+--- a/src/cf/linux-test1.m4
++++ b/src/cf/linux-test1.m4
+@@ -150,3 +150,18 @@ AC_DEFUN([AC_CHECK_LINUX_TYPED_STRUCT],
+ [Define if kernel typedef'd $1 has the $2 element])
+ ])
+
++dnl AC_CHECK_LINUX_OPERATION([structure], [operation], [label], [includes], [return_type], [args])
++AC_DEFUN([AC_CHECK_LINUX_OPERATION],
++ [AS_VAR_PUSHDEF([ac_linux_operation], [ac_cv_linux_operation_$1_$2_$3])
++ AC_CACHE_CHECK([operation $2 in $1], [ac_linux_operation],
++ [save_CPPFLAGS="$CPPFLAGS"
++ CPPFLAGS="$CPPFLAGS -Werror"
++ AC_TRY_KBUILD([$4], [struct $1 ops; $5 op($6) { return ($5)0; }; ops.$2 = op;],
++ AS_VAR_SET([ac_linux_operation], [yes]),
++ AS_VAR_SET([ac_linux_operation], [no]))
++ CPPFLAGS="$save_CPPFLAGS"
++ ])
++ AS_IF([test AS_VAR_GET([ac_linux_operation]) = yes],
++ [AC_DEFINE(AS_TR_CPP(HAVE_LINUX_$1_$2_$3), 1,
++ [Define if $1 has $2 operation of form $6])])
++ ])
+--
+2.5.1
+