From: Jan Beulich <jbeulich@suse.com>
Date: Tue, 7 Sep 2021 07:34:57 +0000 (+0200)
Subject: gnttab: drop a redundant expression from gnttab_release_mappings()
X-Git-Tag: archive/raspbian/4.16.0+51-g0941d6cb-1+rpi1~2^2~42^2~229
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=0e719f6ec95d7f9c9151ecbbdcba92028307e2b4;p=xen.git

gnttab: drop a redundant expression from gnttab_release_mappings()

This gnttab_host_mapping_get_page_type() invocation sits in the "else"
path of a conditional controlled by "map->flags & GNTMAP_readonly".

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Julien Grall <jgrall@amazon.com>
---

diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c
index b1930e2d8e..5f35f78314 100644
--- a/xen/common/grant_table.c
+++ b/xen/common/grant_table.c
@@ -3801,9 +3801,7 @@ int gnttab_release_mappings(struct domain *d)
                 if ( gnttab_release_host_mappings(d) &&
                      !is_iomem_page(act->mfn) )
                 {
-                    if ( gnttab_host_mapping_get_page_type((map->flags &
-                                                            GNTMAP_readonly),
-                                                           d, rd) )
+                    if ( gnttab_host_mapping_get_page_type(false, d, rd) )
                         put_page_type(pg);
                     put_page(pg);
                 }