[U-Boot] [PATCH 3/3] efi_selftest: do not cut off u16 strings when printing

[Heinrich Schuchardt]

Device paths can be very long. Due to a limited output buffer
the output for device paths is cut off. We can avoid this by
directly calling the boottime service with the the device path
string.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 lib/efi_selftest/efi_selftest_console.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/lib/efi_selftest/efi_selftest_console.c b/lib/efi_selftest/efi_selftest_console.c
index 7920c961ba..d30bad17d6 100644
--- a/lib/efi_selftest/efi_selftest_console.c
+++ b/lib/efi_selftest/efi_selftest_console.c
@@ -143,10 +143,12 @@ void efi_st_printc(int color, const char *fmt, ...)
 	const char *c;
 	u16 *pos = buf;
 	const char *s;
-	const u16 *u;
+	u16 *u;
 
 	va_start(args, fmt);
 
+	if (color >= 0)
+		con_out->set_attribute(con_out, (unsigned long)color);
 	c = fmt;
 	for (; *c; ++c) {
 		switch (*c) {
@@ -189,9 +191,13 @@ void efi_st_printc(int color, const char *fmt, ...)
 				/* u16 string */
 				case 's':
 					u = va_arg(args, u16*);
-					/* Ensure string fits into buffer */
-					for (; *u && pos < buf + 120; ++u)
-						*pos++ = *u;
+					if (pos > buf) {
+						*pos = 0;
+						con_out->output_string(con_out,
+								       buf);
+					}
+					con_out->output_string(con_out, u);
+					pos = buf;
 					break;
 				default:
 					--c;
@@ -216,8 +222,6 @@ void efi_st_printc(int color, const char *fmt, ...)
 	}
 	va_end(args);
 	*pos = 0;
-	if (color >= 0)
-		con_out->set_attribute(con_out, (unsigned long)color);
 	con_out->output_string(con_out, buf);
 	if (color >= 0)
 		con_out->set_attribute(con_out, EFI_LIGHTGRAY);
-- 
2.15.1