[Xenomai-core] [pull request] rtdm: Add padding to rtser_config

[Jan Kiszka <jan.kiszka@domain.hid>]

[-- Attachment #1: Type: text/plain, Size: 1887 bytes --]

The following changes since commit 6b1a185b460765c933b17932d77be6967d2e42dc:
  Philippe Gerum (1):
        nucleus: fix locking in shared heap deletion

are available in the git repository at:

  git://git.xenomai.org/xenomai-jki.git for-upstream

Jan Kiszka (1):
      rtdm: Add padding to rtser_config

 include/rtdm/rtserial.h |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

---

rtdm: Add padding to rtser_config

The current layout of rtser_config is unfortunate as it may result in
different layout depending on the compiler alignment setting. Namely,
rx_timeout may be aligned on 8-byte boundaries in user land while it may
not be aligned in the kernel, or vice versa.

Avoid this ambiguity by adding a reserved padding field. Bump profile
revision number due to ABI breakage.

Signed-off-by: Jan Kiszka <jan.kiszka@domain.hid>
---
 include/rtdm/rtserial.h |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/rtdm/rtserial.h b/include/rtdm/rtserial.h
index 30bb564..48712b2 100644
--- a/include/rtdm/rtserial.h
+++ b/include/rtdm/rtserial.h
@@ -29,7 +29,7 @@
  * Feel free to comment on this profile via the Xenomai mailing list
  * (Xenomai-core@domain.hid) or directly to the author (jan.kiszka@domain.hid).
  *
- * @b Profile @b Revision: 2
+ * @b Profile @b Revision: 3
  * @n
  * @n
  * @par Device Characteristics
@@ -79,7 +79,7 @@
 
 #include <rtdm/rtdm.h>
 
-#define RTSER_PROFILE_VER		2
+#define RTSER_PROFILE_VER		3
 
 /*!
  * @anchor RTSER_DEF_BAUD   @name RTSER_DEF_BAUD
@@ -263,6 +263,8 @@ typedef struct rtser_config {
 	/** reception FIFO interrupt threshold, see @ref RTSER_FIFO_xxx */
 	int		fifo_depth;
 
+	int		reserved;
+
 	/** reception timeout, see @ref RTSER_TIMEOUT_xxx for special
 	 *  values */
 	nanosecs_rel_t	rx_timeout;
-- 
1.6.0.2


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 257 bytes --]