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[xen master] gnttab: drop GNTMAP_can_fail

commit d07b7ed8b564f48ff14922ac20347fb33bb27ffb
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Fri Aug 27 10:53:48 2021 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Aug 27 10:53:48 2021 +0200

    gnttab: drop GNTMAP_can_fail
    There's neither documentation of what this flag is supposed to mean, nor
    any implementation. Commit 4d45702cf0398 ("paging: Updates to public
    grant table header file") suggests there might have been plans to use it
    for interaction with mem-paging, but no such functionality has ever
    materialized. With this, don't even bother enclosing the #define-s in a
    __XEN_INTERFACE_VERSION__ conditional, but drop them altogether.
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
 xen/include/public/grant_table.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/xen/include/public/grant_table.h b/xen/include/public/grant_table.h
index 84b1d26b36..69d1e9662e 100644
--- a/xen/include/public/grant_table.h
+++ b/xen/include/public/grant_table.h
@@ -628,9 +628,6 @@ DEFINE_XEN_GUEST_HANDLE(gnttab_cache_flush_t);
 #define _GNTMAP_contains_pte    (4)
 #define GNTMAP_contains_pte     (1<<_GNTMAP_contains_pte)
-#define _GNTMAP_can_fail        (5)
-#define GNTMAP_can_fail         (1<<_GNTMAP_can_fail)
  * Bits to be placed in guest kernel available PTE bits (architecture
  * dependent; only supported when XENFEAT_gnttab_map_avail_bits is set).
generated by git-patchbot for /home/xen/git/xen.git#master



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