diff options
| author | Jinjie Ruan <ruanjinjie@huawei.com> | 2026-01-23 16:10:51 +0800 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2026-01-29 09:52:07 +0100 |
| commit | 77fd1b4c6e084619beff1a55cb66e65c6a66615c (patch) | |
| tree | 923766efc3bfc3880de30be720469fb231c6bf3f /net/netfilter | |
| parent | 5e51803521938566bdf099501379a9bdbacb6066 (diff) | |
netfilter: xt_time: use is_leap_year() helper
Use the is_leap_year() helper from rtc.h instead of
writing it by hand
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/xt_time.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c index 6aa12d0f54e2..00319d2a54da 100644 --- a/net/netfilter/xt_time.c +++ b/net/netfilter/xt_time.c @@ -14,6 +14,7 @@ #include <linux/ktime.h> #include <linux/module.h> +#include <linux/rtc.h> #include <linux/skbuff.h> #include <linux/types.h> #include <linux/netfilter/x_tables.h> @@ -64,11 +65,6 @@ static const u_int16_t days_since_epoch[] = { 3287, 2922, 2557, 2191, 1826, 1461, 1096, 730, 365, 0, }; -static inline bool is_leap(unsigned int y) -{ - return y % 4 == 0 && (y % 100 != 0 || y % 400 == 0); -} - /* * Each network packet has a (nano)seconds-since-the-epoch (SSTE) timestamp. * Since we match against days and daytime, the SSTE value needs to be @@ -138,7 +134,7 @@ static void localtime_3(struct xtm *r, time64_t time) * (A different approach to use would be to subtract a monthlength * from w repeatedly while counting.) */ - if (is_leap(year)) { + if (is_leap_year(year)) { /* use days_since_leapyear[] in a leap year */ for (i = ARRAY_SIZE(days_since_leapyear) - 1; i > 0 && days_since_leapyear[i] > w; --i) |