[PATCH v6 02/13] rangeset: add RANGESETF_no_print flag

[Oleksandr Andrushchenko <andr2000@gmail.com>]

From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>

There are range sets which should not be printed, so introduce a flag
which allows marking those as such. Implement relevant logic to skip
such entries while printing.

While at it also simplify the definition of the flags by directly
defining those without helpers.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
---
Since v5:
- comment indentation (Jan)
Since v1:
- update BUG_ON with new flag
- simplify the definition of the flags
---
 xen/common/rangeset.c      | 5 ++++-
 xen/include/xen/rangeset.h | 5 +++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/xen/common/rangeset.c b/xen/common/rangeset.c
index 885b6b15c229..ea27d651723b 100644
--- a/xen/common/rangeset.c
+++ b/xen/common/rangeset.c
@@ -433,7 +433,7 @@ struct rangeset *rangeset_new(
     INIT_LIST_HEAD(&r->range_list);
     r->nr_ranges = -1;
 
-    BUG_ON(flags & ~RANGESETF_prettyprint_hex);
+    BUG_ON(flags & ~(RANGESETF_prettyprint_hex | RANGESETF_no_print));
     r->flags = flags;
 
     safe_strcpy(r->name, name ?: "(no name)");
@@ -575,6 +575,9 @@ void rangeset_domain_printk(
 
     list_for_each_entry ( r, &d->rangesets, rangeset_list )
     {
+        if ( r->flags & RANGESETF_no_print )
+            continue;
+
         printk("    ");
         rangeset_printk(r);
         printk("\n");
diff --git a/xen/include/xen/rangeset.h b/xen/include/xen/rangeset.h
index 135f33f6066f..f7c69394d66a 100644
--- a/xen/include/xen/rangeset.h
+++ b/xen/include/xen/rangeset.h
@@ -49,8 +49,9 @@ void rangeset_limit(
 
 /* Flags for passing to rangeset_new(). */
  /* Pretty-print range limits in hexadecimal. */
-#define _RANGESETF_prettyprint_hex 0
-#define RANGESETF_prettyprint_hex  (1U << _RANGESETF_prettyprint_hex)
+#define RANGESETF_prettyprint_hex   (1U << 0)
+ /* Do not print entries marked with this flag. */
+#define RANGESETF_no_print          (1U << 1)
 
 bool_t __must_check rangeset_is_empty(
     const struct rangeset *r);
-- 
2.25.1