This patch fixes a regression introduced by commit b810253.
It substitutes the type __u8 to u8 in the uapi header cxl.h,
because the latter is not always defined in userland build
environments, in particular when cross-compiling libcxl on
x86_64 linux machines (RHEL6.7 and Ubuntu 16.04).
This patch also changes the size of the field data_size, and
makes it constant, to support 32-bit userland applications
running on big-endian ppc64 kernels transparently.
This breaks the (young) API that has been merged in v4.8.
Signed-off-by: Philippe Bergheaud <fe...@linux.vnet.ibm.com>
---
Changes since v1:
Added an explanation for the proposed API change in the log.
Note:
As far as I know, cxlflash is the only known user of the API.
include/uapi/misc/cxl.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/uapi/misc/cxl.h b/include/uapi/misc/cxl.h
index cbae529..180d526 100644
--- a/include/uapi/misc/cxl.h
+++ b/include/uapi/misc/cxl.h
@@ -136,8 +136,8 @@ struct cxl_event_afu_driver_reserved {
*
* Of course the contents will be ABI, but that's up the AFU driver.
*/
- size_t data_size;
- u8 data[];
+ __u32 data_size;
+ __u8 data[];
};
struct cxl_event {
--
2.8.0
