[xen master] xen/pdx: amend definition of PDX_GROUP_COUNT

[patchbot@xxxxxxx]

commit 02d754aa5503496a080137573b2f2d11eed698c0
Author:     Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
AuthorDate: Fri Nov 24 09:00:54 2023 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Nov 24 09:00:54 2023 +0100

    xen/pdx: amend definition of PDX_GROUP_COUNT
    
    The definition of PDX_GROUP_COUNT causes violations of
    MISRA C:2012 Rule 10.1, therefore the problematic part now uses
    the ISOLATE_LSB macro, which encapsulates the pattern.
    
    Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/include/xen/pdx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/include/xen/pdx.h b/xen/include/xen/pdx.h
index bd535009ea..23f3956db8 100644
--- a/xen/include/xen/pdx.h
+++ b/xen/include/xen/pdx.h
@@ -70,7 +70,7 @@
 extern unsigned long max_pdx;
 
 #define PDX_GROUP_COUNT ((1 << PDX_GROUP_SHIFT) / \
-                         (sizeof(*frame_table) & -sizeof(*frame_table)))
+                         (ISOLATE_LSB(sizeof(*frame_table))))
 extern unsigned long pdx_group_valid[];
 
 /**
--
generated by git-patchbot for /home/xen/git/xen.git#master