[xen staging] gnttab: fix compat query-size handling

[patchbot@xxxxxxx]

commit 11ea49a3fda5f0cbd8546ee8bdc5e9c55736c828
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Jun 25 11:37:44 2024 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Jun 25 11:37:44 2024 +0200

    gnttab: fix compat query-size handling
    
    The odd DEFINE_XEN_GUEST_HANDLE(), inconsistent with all other similar
    constructs, should have caught my attention. Turns out it was needed for
    the build to succeed merely because the corresponding #ifndef had a
    typo. That typo in turn broke compat mode guests, by having query-size
    requests of theirs wire into the domain_crash() at the bottom of the
    switch().
    
    Fixes: 8c3bb4d8ce3f ("xen/gnttab: Perform compat/native gnttab_query_size 
check")
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Release-Acked-by: Oleksii Kurochko <Oleksii.kurochko@xxxxxxxxx>
---
 xen/common/compat/grant_table.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/xen/common/compat/grant_table.c b/xen/common/compat/grant_table.c
index dd40c48b11..5ad0debf96 100644
--- a/xen/common/compat/grant_table.c
+++ b/xen/common/compat/grant_table.c
@@ -33,7 +33,6 @@ CHECK_gnttab_unmap_and_replace;
 #define xen_gnttab_query_size gnttab_query_size
 CHECK_gnttab_query_size;
 #undef xen_gnttab_query_size
-DEFINE_XEN_GUEST_HANDLE(gnttab_query_size_compat_t);
 
 DEFINE_XEN_GUEST_HANDLE(gnttab_setup_table_compat_t);
 DEFINE_XEN_GUEST_HANDLE(gnttab_transfer_compat_t);
@@ -111,7 +110,7 @@ int compat_grant_table_op(
     CASE(copy);
 #endif
 
-#ifndef CHECK_query_size
+#ifndef CHECK_gnttab_query_size
     CASE(query_size);
 #endif
 
--
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