diff options
| author | Brian Behlendorf <[email protected]> | 2009-03-13 13:38:43 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2009-03-13 13:38:43 -0700 |
| commit | 8123ac4f0d7409cae209858d01803fb2744b51b6 (patch) | |
| tree | 7e2c28b3215d47eff289fcd309a62224427621fb /config/spl-build.m4 | |
| parent | a0b5ae8acaaf63fa2378a6d062e66fdf99387625 (diff) | |
Added SPL_AC_5ARGS_DEVICE_CREATE autoconf configure check
As of 2.6.27 kernels the device_create() API changed to include
a private data argument. This check detects which version of
device_create() function the kernel has and properly defines
spl_device_create() to use the correct prototype.
Diffstat (limited to 'config/spl-build.m4')
| -rw-r--r-- | config/spl-build.m4 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/config/spl-build.m4 b/config/spl-build.m4 index f2dc7fa9e..d0cf86d9a 100644 --- a/config/spl-build.m4 +++ b/config/spl-build.m4 @@ -504,6 +504,28 @@ AC_DEFUN([SPL_AC_DEVICE_CREATE], [ ]) dnl # +dnl # 2.6.27 API change, +dnl # device_create() uses 5 args, new 'drvdata' argument. +dnl # +AC_DEFUN([SPL_AC_5ARGS_DEVICE_CREATE], [ + AC_MSG_CHECKING([whether device_create() wants 5 args]) + tmp_flags="$EXTRA_KCFLAGS" + EXTRA_KCFLAGS="-Werror" + SPL_LINUX_TRY_COMPILE([ + #include <linux/device.h> + ],[ + device_create(NULL, NULL, 0, NULL, "%d", 1); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_5ARGS_DEVICE_CREATE, 1, + [device_create wants 5 args]) + ],[ + AC_MSG_RESULT(no) + ]) + EXTRA_KCFLAGS="$tmp_flags" +]) + +dnl # dnl # 2.6.13 API change, check whether class_device_create() is available. dnl # Class_device_create() was introduced in 2.6.13 and depricated dnl # class_simple_device_add() which was fully removed in 2.6.13. |