The branch stable/13 has been updated by kp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=ef160e5cb919659951b3d4f70a966e58d5dce56f
commit ef160e5cb919659951b3d4f70a966e58d5dce56f
Author: Kristof Provost <k...@freebsd.org>
AuthorDate: 2021-02-16 11:40:51 +0000
Commit: Kristof Provost <k...@freebsd.org>
CommitDate: 2021-02-24 08:03:43 +0000
pf: Remove unused return value from (de)hook_pf()
These functions always return 0, which is good, because the code calling
them doesn't handle this error gracefully.
As the functions always succeed remove their return value, and the code
handling their errors (because it was never executed anyway).
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC (“Netgate”’)
(cherry picked from commit 8a439f324e9010a122fa4c00426bde70dc373c2f)
---
sys/netpfil/pf/pf_ioctl.c | 40 +++++++++-------------------------------
1 file changed, 9 insertions(+), 31 deletions(-)
diff --git a/sys/netpfil/pf/pf_ioctl.c b/sys/netpfil/pf/pf_ioctl.c
index bd8896cfb772..97be46509acc 100644
--- a/sys/netpfil/pf/pf_ioctl.c
+++ b/sys/netpfil/pf/pf_ioctl.c
@@ -213,8 +213,8 @@ static pfil_return_t pf_check6_out(struct mbuf **m, struct
ifnet *ifp,
int flags, void *ruleset __unused, struct inpcb *inp);
#endif
-static int hook_pf(void);
-static int dehook_pf(void);
+static void hook_pf(void);
+static void dehook_pf(void);
static int shutdown_pf(void);
static int pf_load(void);
static void pf_unload(void);
@@ -1814,12 +1814,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int
flags, struct thread *td
else {
int cpu;
- error = hook_pf();
- if (error) {
- DPFPRINTF(PF_DEBUG_MISC,
- ("pf: pfil registration failed\n"));
- break;
- }
+ hook_pf();
V_pf_status.running = 1;
V_pf_status.since = time_second;
@@ -1836,12 +1831,7 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int
flags, struct thread *td
error = ENOENT;
else {
V_pf_status.running = 0;
- error = dehook_pf();
- if (error) {
- V_pf_status.running = 1;
- DPFPRINTF(PF_DEBUG_MISC,
- ("pf: pfil unregistration failed\n"));
- }
+ dehook_pf();
V_pf_status.since = time_second;
DPFPRINTF(PF_DEBUG_MISC, ("pf: stopped\n"));
}
@@ -4565,14 +4555,14 @@ VNET_DEFINE_STATIC(pfil_hook_t, pf_ip6_out_hook);
#define V_pf_ip6_out_hook VNET(pf_ip6_out_hook)
#endif
-static int
+static void
hook_pf(void)
{
struct pfil_hook_args pha;
struct pfil_link_args pla;
if (V_pf_pfil_hooked)
- return (0);
+ return;
pha.pa_version = PFIL_VERSION;
pha.pa_modname = "pf";
@@ -4620,15 +4610,14 @@ hook_pf(void)
#endif
V_pf_pfil_hooked = 1;
- return (0);
}
-static int
+static void
dehook_pf(void)
{
if (V_pf_pfil_hooked == 0)
- return (0);
+ return;
#ifdef INET
pfil_remove_hook(V_pf_ip4_in_hook);
@@ -4640,7 +4629,6 @@ dehook_pf(void)
#endif
V_pf_pfil_hooked = 0;
- return (0);
}
static void
@@ -4688,20 +4676,10 @@ pf_load(void)
static void
pf_unload_vnet(void)
{
- int error;
V_pf_vnet_active = 0;
V_pf_status.running = 0;
- error = dehook_pf();
- if (error) {
- /*
- * Should not happen!
- * XXX Due to error code ESRCH, kldunload will show
- * a message like 'No such process'.
- */
- printf("%s : pfil unregisteration fail\n", __FUNCTION__);
- return;
- }
+ dehook_pf();
PF_RULES_WLOCK();
shutdown_pf();
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