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[RFC v5 079/126] cryptodev: introduce ERRP_AUTO_PROPAGATE
From: |
Vladimir Sementsov-Ogievskiy |
Subject: |
[RFC v5 079/126] cryptodev: introduce ERRP_AUTO_PROPAGATE |
Date: |
Fri, 11 Oct 2019 19:05:05 +0300 |
If we want to add some info to errp (by error_prepend() or
error_append_hint()), we must use the ERRP_AUTO_PROPAGATE macro.
Otherwise, this info will not be added when errp == &fatal_err
(the program will exit prior to the error_append_hint() or
error_prepend() call). Fix such cases.
If we want to check error after errp-function call, we need to
introduce local_err and than propagate it to errp. Instead, use
ERRP_AUTO_PROPAGATE macro, benefits are:
1. No need of explicit error_propagate call
2. No need of explicit local_err variable: use errp directly
3. ERRP_AUTO_PROPAGATE leaves errp as is if it's not NULL or
&error_fatel, this means that we don't break error_abort
(we'll abort on error_set, not on error_propagate)
This commit (together with its neighbors) was generated by
for f in $(git grep -l errp \*.[ch]); do \
spatch --sp-file scripts/coccinelle/auto-propagated-errp.cocci \
--macro-file scripts/cocci-macro-file.h --in-place --no-show-diff $f; \
done;
then fix a bit of compilation problems: coccinelle for some reason
leaves several
f() {
...
goto out;
...
out:
}
patterns, with "out:" at function end.
then
./python/commit-per-subsystem.py MAINTAINERS "$(< auto-msg)"
(auto-msg was a file with this commit message)
Still, for backporting it may be more comfortable to use only the first
command and then do one huge commit.
Reported-by: Kevin Wolf <address@hidden>
Reported-by: Greg Kurz <address@hidden>
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---
backends/cryptodev-vhost-user.c | 10 ++++------
backends/cryptodev.c | 14 ++++++--------
2 files changed, 10 insertions(+), 14 deletions(-)
diff --git a/backends/cryptodev-vhost-user.c b/backends/cryptodev-vhost-user.c
index b344283940..8bab46fd77 100644
--- a/backends/cryptodev-vhost-user.c
+++ b/backends/cryptodev-vhost-user.c
@@ -177,17 +177,16 @@ static void cryptodev_vhost_user_event(void *opaque, int
event)
static void cryptodev_vhost_user_init(
CryptoDevBackend *backend, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
int queues = backend->conf.peers.queues;
size_t i;
- Error *local_err = NULL;
Chardev *chr;
CryptoDevBackendClient *cc;
CryptoDevBackendVhostUser *s =
CRYPTODEV_BACKEND_VHOST_USER(backend);
- chr = cryptodev_vhost_claim_chardev(s, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ chr = cryptodev_vhost_claim_chardev(s, errp);
+ if (*errp) {
return;
}
@@ -204,8 +203,7 @@ static void cryptodev_vhost_user_init(
backend->conf.peers.ccs[i] = cc;
if (i == 0) {
- if (!qemu_chr_fe_init(&s->chr, chr, &local_err)) {
- error_propagate(errp, local_err);
+ if (!qemu_chr_fe_init(&s->chr, chr, errp)) {
return;
}
}
diff --git a/backends/cryptodev.c b/backends/cryptodev.c
index 5a9735684e..6fd039567d 100644
--- a/backends/cryptodev.c
+++ b/backends/cryptodev.c
@@ -153,22 +153,20 @@ static void
cryptodev_backend_set_queues(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
+ ERRP_AUTO_PROPAGATE();
CryptoDevBackend *backend = CRYPTODEV_BACKEND(obj);
- Error *local_err = NULL;
uint32_t value;
- visit_type_uint32(v, name, &value, &local_err);
- if (local_err) {
- goto out;
+ visit_type_uint32(v, name, &value, errp);
+ if (*errp) {
+ return;
}
if (!value) {
- error_setg(&local_err, "Property '%s.%s' doesn't take value '%"
+ error_setg(errp, "Property '%s.%s' doesn't take value '%"
PRIu32 "'", object_get_typename(obj), name, value);
- goto out;
+ return;
}
backend->conf.peers.queues = value;
-out:
- error_propagate(errp, local_err);
}
static void
--
2.21.0
- [RFC v5 073/126] SPICE: introduce ERRP_AUTO_PROPAGATE, (continued)
- [RFC v5 073/126] SPICE: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 045/126] pflash: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 040/126] Floppy: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 037/126] S390 Machines: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 069/126] chardev: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 070/126] cmdline: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 074/126] Graphics: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 078/126] hostmem: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 051/126] vfio-ccw: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 079/126] cryptodev: introduce ERRP_AUTO_PROPAGATE,
Vladimir Sementsov-Ogievskiy <=
- [RFC v5 071/126] Dump: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 031/126] xen: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 080/126] QAPI: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 083/126] QMP: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 075/126] Main loop: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 072/126] Memory API: introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [RFC v5 076/126] Human Monitor (HMP): introduce ERRP_AUTO_PROPAGATE, Vladimir Sementsov-Ogievskiy, 2019/10/11