[PATCH v2 32/32] lmb: add logic to print lmb flag strings

[Sughosh Ganu]

Instead of printing the LMB flags as numerical values, print them as
strings. This makes it easier to understand what flags are associated
with the lmb region. Also make corresponding changes to the bdinfo
command's test code.

Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
---
Changes since V1: New patch

 lib/lmb.c         | 18 ++++++++++++++++--
 test/cmd/bdinfo.c |  4 ++--
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/lib/lmb.c b/lib/lmb.c
index 37d2a72951..5c5b3e9bb5 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -26,6 +26,19 @@ DECLARE_GLOBAL_DATA_PTR;
 
 static struct lmb lmb;
 
+static void print_region_flags(enum lmb_flags flags)
+{
+	uint64_t bitpos;
+	const char *flag_str[] = { "LMB_NONE", "LMB_NOMAP", "LMB_NOOVERWRITE" };
+
+	do {
+		bitpos = fls(flags) - 1;
+		printf("%s", flag_str[bitpos]);
+		flags &= ~(1ull << bitpos);
+		flags ? puts(", ") : puts("\n");
+	} while (flags);
+}
+
 static void lmb_dump_region(struct alist *lmb_rgn_lst, char *name)
 {
 	struct lmb_region *rgn = lmb_rgn_lst->data;
@@ -41,8 +54,9 @@ static void lmb_dump_region(struct alist *lmb_rgn_lst, char *name)
 		end = base + size - 1;
 		flags = rgn[i].flags;
 
-		printf(" %s[%d]\t[0x%llx-0x%llx], 0x%08llx bytes flags: %x\n",
-		       name, i, base, end, size, flags);
+		printf(" %s[%d]\t[0x%llx-0x%llx], 0x%08llx bytes flags: ",
+		       name, i, base, end, size);
+		print_region_flags(flags);
 	}
 }
 
diff --git a/test/cmd/bdinfo.c b/test/cmd/bdinfo.c
index 7dd3f7ca5b..887defc28a 100644
--- a/test/cmd/bdinfo.c
+++ b/test/cmd/bdinfo.c
@@ -120,8 +120,8 @@ static int lmb_test_dump_region(struct unit_test_state *uts,
 			ut_assert_nextlinen(" %s[%d]\t[", name, i);
 			continue;
 		}
-		ut_assert_nextline(" %s[%d]\t[0x%llx-0x%llx], 0x%08llx bytes flags: %x",
-				   name, i, base, end, size, flags);
+		ut_assert_nextlinen(" %s[%d]\t[0x%llx-0x%llx], 0x%08llx bytes flags: ",
+				   name, i, base, end, size);
 	}
 
 	return 0;
-- 
2.34.1