Merge tag 'upstream-4.20-rc7' of git://git.infradead.org/linux-ubifs

[sfrench/cifs-2.6.git] / lib / test_printf.c

diff --git a/lib/test_printf.c b/lib/test_printf.c
index cea592f402ed029d6d5dd63addd2d2bc8a8391f1..53527ea822b53c0c35eb0025cd80cecde54403b3 100644 (file)
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -206,6 +206,7 @@ test_string(void)
 #define PTR_WIDTH 16
 #define PTR ((void *)0xffff0123456789abUL)
 #define PTR_STR "ffff0123456789ab"
+#define PTR_VAL_NO_CRNG "(____ptrval____)"
 #define ZEROS "00000000"       /* hex 32 zero bits */
 
 static int __init
@@ -216,7 +217,16 @@ plain_format(void)
 
        nchars = snprintf(buf, PLAIN_BUF_SIZE, "%p", PTR);
 
-       if (nchars != PTR_WIDTH || strncmp(buf, ZEROS, strlen(ZEROS)) != 0)
+       if (nchars != PTR_WIDTH)
+               return -1;
+
+       if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) {
+               pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"",
+                       PTR_VAL_NO_CRNG);
+               return 0;
+       }
+
+       if (strncmp(buf, ZEROS, strlen(ZEROS)) != 0)
                return -1;
 
        return 0;
@@ -227,6 +237,7 @@ plain_format(void)
 #define PTR_WIDTH 8
 #define PTR ((void *)0x456789ab)
 #define PTR_STR "456789ab"
+#define PTR_VAL_NO_CRNG "(ptrval)"
 
 static int __init
 plain_format(void)
@@ -245,7 +256,16 @@ plain_hash(void)
 
        nchars = snprintf(buf, PLAIN_BUF_SIZE, "%p", PTR);
 
-       if (nchars != PTR_WIDTH || strncmp(buf, PTR_STR, PTR_WIDTH) == 0)
+       if (nchars != PTR_WIDTH)
+               return -1;
+
+       if (strncmp(buf, PTR_VAL_NO_CRNG, PTR_WIDTH) == 0) {
+               pr_warn("crng possibly not yet initialized. plain 'p' buffer contains \"%s\"",
+                       PTR_VAL_NO_CRNG);
+               return 0;
+       }
+
+       if (strncmp(buf, PTR_STR, PTR_WIDTH) == 0)
                return -1;
 
        return 0;