From: Arvind Sankar <nivedita@alum.mit.edu>
Date: Mon, 18 May 2020 15:06:58 -0400
Subject: efi/printf: Drop %n format and L qualifier
Patch-mainline: v5.8-rc1
Git-commit: 29a2806653360f1ba0f7608ef64d65d441a575f7
References: jsc#SLE-16407
%n is unused and deprecated.
The L qualifer is parsed but not actually implemented.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200518190716.751506-7-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Lee, Chun-Yi <jlee@suse.com>
---
drivers/firmware/efi/libstub/vsprintf.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
--- a/drivers/firmware/efi/libstub/vsprintf.c
+++ b/drivers/firmware/efi/libstub/vsprintf.c
@@ -127,7 +127,7 @@ int vsprintf(char *buf, const char *fmt,
int field_width; /* width of output field */
int precision; /* min. # of digits for integers; max
number of chars for from string */
- int qualifier; /* 'h', 'l', or 'L' for integer fields */
+ int qualifier; /* 'h' or 'l' for integer fields */
for (str = buf; *fmt; ++fmt) {
if (*fmt != '%') {
@@ -188,7 +188,7 @@ int vsprintf(char *buf, const char *fmt,
/* get the conversion qualifier */
qualifier = -1;
- if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') {
+ if (*fmt == 'h' || *fmt == 'l') {
qualifier = *fmt;
++fmt;
}
@@ -229,16 +229,6 @@ int vsprintf(char *buf, const char *fmt,
field_width, precision, flags);
continue;
- case 'n':
- if (qualifier == 'l') {
- long *ip = va_arg(args, long *);
- *ip = (str - buf);
- } else {
- int *ip = va_arg(args, int *);
- *ip = (str - buf);
- }
- continue;
-
case '%':
*str++ = '%';
continue;