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| author | Philippe Bergheaud <felix@linux.vnet.ibm.com> | 2016-08-05 14:02:00 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-08-09 16:52:01 +1000 |
| commit | cbd74e1bc8129efb9908f130a8a6e60fd95d2106 (patch) | |
| tree | 7977f5ce6a9a029637acf39d1c802298a84eae8e /include | |
| parent | 546c4402c57497a6ffdf5373aff75bc89f0866bc (diff) | |
| download | linux-cbd74e1bc8129efb9908f130a8a6e60fd95d2106.tar.gz | |
cxl: Use fixed width predefined types in data structure.
This patch fixes a regression introduced by commit b810253bd934 ("cxl:
Add mechanism for delivering AFU driver specific events").
It changes the type u8 to __u8 in the uapi header cxl.h, because the
former is a kernel internal type, and may not be 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.
mpe: This is an ABI change, however the ABI was only added during the
4.8 merge window so has never been part of a released kernel - therefore
we give ourselves permission to change it.
Fixes: b810253bd934 ("cxl: Add mechanism for delivering AFU driver specific events")
Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/misc/cxl.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/uapi/misc/cxl.h b/include/uapi/misc/cxl.h index cbae529b7ce0..180d526a55c3 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 { |