tiny-printf variant doesn't know how to handle %llu format string, but both
tiny-printf and print_size can meet in SPL when TFTP is used to obtain main
u-boot image. This is known to lead to critical boot issue at AM335x platform
when printf is catched in infinite loop.
To avoid such issues and make print_size function tiny-printf friendly, use %u
instead of %luu. Note, that the size value is guaranteed to be less than 1024
in this conditional branch, so the cast to unsigned int is safe.
Signed-off-by: Matwey V. Kornilov <matwey.korni...@gmail.com>
---
lib/display_options.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/lib/display_options.c b/lib/display_options.c
index c08a87e316..4da1f5244f 100644
--- a/lib/display_options.c
+++ b/lib/display_options.c
@@ -107,7 +107,12 @@ void print_size(uint64_t size, const char *s)
}
if (!c) {
- printf("%llu Bytes%s", size, s);
+ /*
+ * SPL tiny-printf is not capable for printing uint64_t.
+ * We have just checked that the size is small enought to fit
+ * unsigned int safely.
+ */
+ printf("%u Bytes%s", (unsigned int)size, s);
return;
}
--
2.31.1
