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authorRasmus Villemoes <rasmus.villemoes@prevas.dk>2021-05-28 00:20:46 +0200
committerTom Rini <trini@konsulko.com>2021-07-15 18:44:36 -0400
commit23b542aa3f9c663c98e1baa2732cce99c333f030 (patch)
tree8a4a013a5e1921f344cdcc05b7fae517a3ba2bc3 /lib/vsprintf.c
parentce452157e6a8b68b76cfc5e3d30f7d7b10ace575 (diff)
lib/vsprintf.c: remove unused ip6_addr_string()
There's currently no user of %p[iI]6, so including ip6_addr_string() in the image is a waste of bytes. It's easy enough to have the compiler elide it without removing the code completely. The closest I can find to anybody "handling" ipv6 in U-Boot currently is in efi_net.c which does if (ipv6) { ret = EFI_UNSUPPORTED; As indicated in the comment, it can easily be put back, but preferably under a config knob. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Diffstat (limited to 'lib/vsprintf.c')
-rw-r--r--lib/vsprintf.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index af0a6e1dcf..c14176dd39 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -434,6 +434,9 @@ static char *uuid_string(char *buf, char *end, u8 *addr, int field_width,
* - 'i' [46] for 'raw' IPv4/IPv6 addresses, IPv6 omits the colons, IPv4 is
* currently the same
*
+ * Note: IPv6 support is currently if(0)'ed out. If you ever need
+ * %pI6, please add an IPV6 Kconfig knob, make your code select or
+ * depend on that, and change the 0 below to CONFIG_IS_ENABLED(IPV6).
*/
static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
int field_width, int precision, int flags)
@@ -478,7 +481,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
flags |= SPECIAL;
/* Fallthrough */
case 'I':
- if (fmt[1] == '6')
+ /* %pI6 currently unused */
+ if (0 && fmt[1] == '6')
return ip6_addr_string(buf, end, ptr, field_width,
precision, flags);
if (fmt[1] == '4')