68 lines
2.4 KiB
Diff
68 lines
2.4 KiB
Diff
From 194c626f2a026233b7383d75225419ab66389aaa Mon Sep 17 00:00:00 2001
|
|
From: Alistair Francis <alistair.francis@wdc.com>
|
|
Date: Tue, 24 Sep 2019 21:55:36 +0100
|
|
Subject: [PATCH 19/20] inet/net-internal.h: Fix uninitalised clntudp_call()
|
|
variable
|
|
|
|
The total_deadline variable inside the clntudp_call() function inside
|
|
sunrpc/clnt_udp.c can cause uninitalised variable warnings when building
|
|
with GCC 8.3 or 9.2 on a platform with a 64-bit tv_nsec on a 32-bit
|
|
architecture. To fix the warning let's use the DIAG_* macros to hide the
|
|
warning.
|
|
|
|
A GCC bug case has also been submitted:
|
|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91691
|
|
|
|
2019-09-24 Alistair Francis <alistair.francis@wdc.com>
|
|
|
|
* inet/net-internal.h: Fix uninitalised clntudp_call() variable.
|
|
|
|
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
|
|
(cherry picked from commit 5d245b5f8d9663953c20107e3bb16fe249e48126)
|
|
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
|
|
---
|
|
inet/net-internal.h | 13 +++++++++++++
|
|
1 file changed, 13 insertions(+)
|
|
|
|
diff --git a/inet/net-internal.h b/inet/net-internal.h
|
|
index 0ba6736a..7019d23b 100644
|
|
--- a/inet/net-internal.h
|
|
+++ b/inet/net-internal.h
|
|
@@ -23,6 +23,7 @@
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include <sys/time.h>
|
|
+#include <libc-diag.h>
|
|
|
|
int __inet6_scopeid_pton (const struct in6_addr *address,
|
|
const char *scope, uint32_t *result);
|
|
@@ -96,6 +97,16 @@ __deadline_is_infinite (struct deadline deadline)
|
|
return deadline.absolute.tv_nsec < 0;
|
|
}
|
|
|
|
+/* GCC 8.3 and 9.2 both incorrectly report total_deadline
|
|
+ * (from sunrpc/clnt_udp.c) as maybe-uninitialized when tv_sec is 8 bytes
|
|
+ * (64-bits) wide on 32-bit systems. We have to set -Wmaybe-uninitialized
|
|
+ * here as it won't fix the error in sunrpc/clnt_udp.c.
|
|
+ * A GCC bug has been filed here:
|
|
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91691
|
|
+ */
|
|
+DIAG_PUSH_NEEDS_COMMENT;
|
|
+DIAG_IGNORE_NEEDS_COMMENT (9, "-Wmaybe-uninitialized");
|
|
+
|
|
/* Return true if the current time is at the deadline or past it. */
|
|
static inline bool
|
|
__deadline_elapsed (struct deadline_current_time current,
|
|
@@ -120,6 +131,8 @@ __deadline_first (struct deadline left, struct deadline right)
|
|
return right;
|
|
}
|
|
|
|
+DIAG_POP_NEEDS_COMMENT;
|
|
+
|
|
/* Add TV to the current time and return it. Returns a special
|
|
infinite absolute deadline on overflow. */
|
|
struct deadline __deadline_from_timeval (struct deadline_current_time,
|
|
--
|
|
2.20.1
|
|
|