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| author | Shuvam Pandey <shuvampandey1@gmail.com> | 2026-03-17 14:45:48 +0300 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2026-03-24 16:20:19 +0300 |
| commit | f4cf0992be37e6a8bc6cf9108f2c9628a6188381 (patch) | |
| tree | f6aefece50a5c8dfd21513e9856da05d6be6a7db /lib | |
| parent | db9571a66156bfbc0273e66e5c77923869bda547 (diff) | |
| download | linux-f4cf0992be37e6a8bc6cf9108f2c9628a6188381.tar.xz | |
printf: add IPv6 address format tests
printf_kunit already covers IPv4 address formatting, but the ip6()
test case is empty even though printk-formats.rst documents %pI6,
%pi6, %pI6c, and generic %pIS variants.
Add focused IPv6 checks for raw and generic formatting, compressed
output, the single-zero %pI6c corner case, and bracketed port
formatting for sockaddr_in6.
Signed-off-by: Shuvam Pandey <shuvampandey1@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Link: https://patch.msgid.link/20260317114548.98919-1-shuvampandey1@gmail.com
[pmladek@suse.com: Removed non-necessary details from the commit message.]
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/tests/printf_kunit.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/tests/printf_kunit.c b/lib/tests/printf_kunit.c index f6f21b445ece..bb70b9cddadd 100644 --- a/lib/tests/printf_kunit.c +++ b/lib/tests/printf_kunit.c @@ -17,6 +17,7 @@ #include <linux/dcache.h> #include <linux/socket.h> #include <linux/in.h> +#include <linux/in6.h> #include <linux/gfp.h> #include <linux/mm.h> @@ -437,6 +438,27 @@ ip4(struct kunit *kunittest) static void ip6(struct kunit *kunittest) { + const struct in6_addr addr = { + .s6_addr = { 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, + 0x00, 0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08 } + }; + const struct in6_addr single_zero = { + .s6_addr = { 0x00, 0x01, 0x00, 0x00, 0x00, 0x03, 0x00, 0x04, + 0x00, 0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08 } + }; + struct sockaddr_in6 sa = { + .sin6_family = AF_INET6, + .sin6_port = cpu_to_be16(12345), + .sin6_addr = addr, + }; + + test("00010002000300040005000600070008|0001:0002:0003:0004:0005:0006:0007:0008", + "%pi6|%pI6", &addr, &addr); + test("00010002000300040005000600070008|0001:0002:0003:0004:0005:0006:0007:0008", + "%piS|%pIS", &sa, &sa); + test("1:2:3:4:5:6:7:8", "%pI6c", &addr); + test("1:0:3:4:5:6:7:8", "%pI6c", &single_zero); + test("[1:2:3:4:5:6:7:8]:12345", "%pISpc", &sa); } static void |