On 08/02/2017 12:00, Leon Romanovsky wrote:
On Wed, Feb 08, 2017 at 12:28:50AM -0800, Christoph Hellwig wrote:
#include <linux/types.h>
-#include <rdma/ib_verbs.h>
/*
* Increment this value if any changes that break userspace ABI
@@ -548,11 +547,11 @@ enum {
};
enum {
- IB_USER_LEGACY_LAST_QP_ATTR_MASK = IB_QP_DEST_QPN
+ IB_USER_LEGACY_LAST_QP_ATTR_MASK = 1ULL << 20,
};
enum {
- IB_USER_LAST_QP_ATTR_MASK = IB_QP_RATE_LIMIT
+ IB_USER_LAST_QP_ATTR_MASK = 1ULL << 25,
I disagree with the upendcoding. These constant should be moved to
the user verbs header instead.
These constants are part of much larger enum ib_qp_attr_mask. IMHO copy
two values from that enum isn't good, but copy whole enum (mostly not
needed for the users) is bad either. So I decided to open code it as a fix
for -rc7.
Thanks
IMHO, since these enum values are actually passed between user-space to
kernel (attr_mask), it's acceptable to expose all enum values.
Otherwise, the user-space should define all these symbols by by itself,
so why bother introduce only this explicit symbol?
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