32 bit platforms without 64bit div generate the following warning:
net/netfilter/ipvs/ip_vs_est.c: In function 'ip_vs_est_calc_limits':
include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
net/netfilter/ipvs/ip_vs_est.c:694:17: note: in expansion of macro 'do_div'
694 | do_div(val, loops);
| ^~~~~~
include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
net/netfilter/ipvs/ip_vs_est.c:700:33: note: in expansion of macro 'do_div'
700 | do_div(val, min_est);
| ^~~~~~
first argument of do_div() should be unsigned. We can't just cast
as do_div() updates it as well, so we need an lval.
Make val unsigned in the first place, all paths check that the value
they assign to this variables are non-negative already.
Fixes: 705dd3444081 ("ipvs: use kthreads for stats estimation")
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
---
CC: horms@xxxxxxxxxxxx
CC: ja@xxxxxx
CC: pablo@xxxxxxxxxxxxx
CC: kadlec@xxxxxxxxxxxxx
CC: fw@xxxxxxxxx
CC: jwiesner@xxxxxxx
CC: lvs-devel@xxxxxxxxxxxxxxx
CC: netfilter-devel@xxxxxxxxxxxxxxx
CC: coreteam@xxxxxxxxxxxxx
---
net/netfilter/ipvs/ip_vs_est.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/ipvs/ip_vs_est.c b/net/netfilter/ipvs/ip_vs_est.c
index df56073bb282..ce2a1549b304 100644
--- a/net/netfilter/ipvs/ip_vs_est.c
+++ b/net/netfilter/ipvs/ip_vs_est.c
@@ -640,9 +640,10 @@ static int ip_vs_est_calc_limits(struct netns_ipvs *ipvs, int *chain_max)
int i, loops, ntest;
s32 min_est = 0;
ktime_t t1, t2;
- s64 diff, val;
int max = 8;
int ret = 1;
+ s64 diff;
+ u64 val;
INIT_HLIST_HEAD(&chain);
mutex_lock(&__ip_vs_mutex);
--
2.38.1
