From: Eugene Syromyatnikov <evgsyr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: strace-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
mpatocka-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Subject: [PATCH 14/21] dm: replace abbrev branching with goto
Date: Sun, 9 Oct 2016 16:30:56 +0300 [thread overview]
Message-ID: <20161009133056.GA3900@obsidian> (raw)
In-Reply-To: <20161005.192828.566127461630656590.yamato-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
dm.c | 78 ++++++++++++++++++++++++++++++++++--------------------------------
1 file changed, 40 insertions(+), 38 deletions(-)
diff --git a/dm.c b/dm.c
index 73a9b57..814d7d2 100644
--- a/dm.c
+++ b/dm.c
@@ -350,52 +350,54 @@ dm_known_ioctl(struct tcb *tcp, const unsigned int code, long arg)
}
}
}
- if (abbrev(tcp))
+
+ if (abbrev(tcp)) {
tprints(", ...");
- else
- switch (code) {
- case DM_DEV_WAIT:
- case DM_TABLE_STATUS:
- if (entering(tcp) || syserror(tcp))
- break;
- dm_decode_dm_target_spec(tcp, ioc, extra, extra_size);
- break;
- case DM_TABLE_LOAD:
- if (!entering(tcp))
- break;
- dm_decode_dm_target_spec(tcp, ioc, extra, extra_size);
+ goto skip;
+ }
+
+ switch (code) {
+ case DM_DEV_WAIT:
+ case DM_TABLE_STATUS:
+ if (entering(tcp) || syserror(tcp))
break;
- case DM_TABLE_DEPS:
- if (entering(tcp) || syserror(tcp))
- break;
- dm_decode_dm_target_deps(ioc, extra, extra_size);
+ dm_decode_dm_target_spec(tcp, ioc, extra, extra_size);
+ break;
+ case DM_TABLE_LOAD:
+ if (!entering(tcp))
break;
- case DM_LIST_DEVICES:
- if (entering(tcp) || syserror(tcp))
- break;
- dm_decode_dm_name_list(ioc, extra, extra_size);
+ dm_decode_dm_target_spec(tcp, ioc, extra, extra_size);
+ break;
+ case DM_TABLE_DEPS:
+ if (entering(tcp) || syserror(tcp))
break;
- case DM_LIST_VERSIONS:
- if (entering(tcp) || syserror(tcp))
- break;
- dm_decode_dm_target_versions(ioc, extra, extra_size);
+ dm_decode_dm_target_deps(ioc, extra, extra_size);
+ break;
+ case DM_LIST_DEVICES:
+ if (entering(tcp) || syserror(tcp))
break;
- case DM_TARGET_MSG:
- if (entering(tcp)) {
- dm_decode_dm_target_msg(ioc, extra,
- extra_size);
- } else if (!syserror(tcp) &&
- ioc->flags & DM_DATA_OUT_FLAG) {
- dm_decode_string(ioc, extra, extra_size);
- }
+ dm_decode_dm_name_list(ioc, extra, extra_size);
+ break;
+ case DM_LIST_VERSIONS:
+ if (entering(tcp) || syserror(tcp))
break;
- case DM_DEV_RENAME:
- case DM_DEV_SET_GEOMETRY:
- if (!entering(tcp))
- break;
+ dm_decode_dm_target_versions(ioc, extra, extra_size);
+ break;
+ case DM_TARGET_MSG:
+ if (entering(tcp)) {
+ dm_decode_dm_target_msg(ioc, extra,
+ extra_size);
+ } else if (!syserror(tcp) && ioc->flags & DM_DATA_OUT_FLAG) {
dm_decode_string(ioc, extra, extra_size);
- break;
}
+ break;
+ case DM_DEV_RENAME:
+ case DM_DEV_SET_GEOMETRY:
+ if (!entering(tcp))
+ break;
+ dm_decode_string(ioc, extra, extra_size);
+ break;
+ }
skip:
tprints("}");
--
1.7.10.4
------------------------------------------------------------------------------
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next prev parent reply other threads:[~2016-10-09 13:30 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.LRH.2.02.1608221155410.17400@file01.intranet.prod.int.rdu2.redhat.com>
[not found] ` <20160822170920.GA5147@altlinux.org>
[not found] ` <alpine.LRH.2.02.1608231303510.7049@file01.intranet.prod.int.rdu2.redhat.com>
[not found] ` <20160824.233543.198328104871315294.yamato@redhat.com>
[not found] ` <20160824.233543.198328104871315294.yamato-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-08-25 12:27 ` [PATCH] Re: your dm patch for strace Mikulas Patocka
[not found] ` <alpine.LRH.2.02.1608250823130.24332-Hpncn10jQN4oNljnaZt3ZvA+iT7yCHsGwRM8/txMwJMAicBL8TP8PQ@public.gmane.org>
2016-09-12 17:10 ` Dmitry V. Levin
[not found] ` <20160912171029.GA5263-u2l5PoMzF/Vg9hUCZPvPmw@public.gmane.org>
2016-10-02 21:59 ` Mikulas Patocka
[not found] ` <alpine.LRH.2.02.1610021751280.29417-Hpncn10jQN4oNljnaZt3ZvA+iT7yCHsGwRM8/txMwJMAicBL8TP8PQ@public.gmane.org>
2016-10-05 10:28 ` Masatake YAMATO
[not found] ` <20161005.192828.566127461630656590.yamato-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-10-09 13:27 ` [PATCH 00/21] Some possible additions to the DM ioctl " Eugene Syromyatnikov
2016-10-09 13:28 ` [PATCH 01/21] tests/ioctl_dm: Formatting Eugene Syromyatnikov
2016-10-09 13:28 ` [PATCH 02/21] dm: whitespace fixes Eugene Syromyatnikov
2016-10-09 13:28 ` [PATCH 03/21] tests: Working around bounds check Eugene Syromyatnikov
2016-10-09 13:28 ` [PATCH 04/21] dm: Minor output tweaks Eugene Syromyatnikov
2016-10-09 13:29 ` [PATCH 05/21] xlat: Add values for dm_flags Eugene Syromyatnikov
2016-10-09 13:29 ` [PATCH 06/21] dm: Some future-proofing by means of compile-time DM_VERSION_MAJOR check Eugene Syromyatnikov
2016-10-09 13:29 ` [PATCH 07/21] dm: Add definitions for ioctl commands not implemented initially Eugene Syromyatnikov
2016-10-09 13:30 ` [PATCH 08/21] dm: Use static constants for offset sizes Eugene Syromyatnikov
2016-10-09 13:30 ` [PATCH 09/21] dm: Remove char * cast Eugene Syromyatnikov
2016-10-09 13:30 ` [PATCH 10/21] dm: use => instead of , for splitting output structure from input Eugene Syromyatnikov
2016-10-09 13:30 ` [PATCH 11/21] dm: Compare entering field values with exiting ones Eugene Syromyatnikov
2016-10-09 13:30 ` [PATCH 12/21] dm: Add inttypes.h, include reorder Eugene Syromyatnikov
2016-10-09 13:30 ` [PATCH 13/21] dm: Move printing of dm_ioctl fields before allocation of extra data Eugene Syromyatnikov
2016-10-09 13:30 ` Eugene Syromyatnikov [this message]
2016-10-09 13:31 ` [PATCH 15/21] dm: Additional data_size/data_start checks Eugene Syromyatnikov
2016-10-09 13:31 ` [PATCH 16/21] dm: Add comment regarding intended fall-through in switch statement Eugene Syromyatnikov
2016-10-09 13:31 ` [PATCH 17/21] dm: Add data_size and data_offset fields to output Eugene Syromyatnikov
2016-10-09 13:31 ` [PATCH 18/21] tests/ioctl_dm: Allow passing size and data_start to init_s Eugene Syromyatnikov
2016-10-09 13:31 ` [PATCH 19/21] dm: Add check whether command uses parameters Eugene Syromyatnikov
2016-10-09 13:31 ` [PATCH 20/21] dm: Fix printing of version field Eugene Syromyatnikov
2016-10-09 13:31 ` [PATCH 21/21] dm: rewrite structure decoding Eugene Syromyatnikov
2016-10-10 10:27 ` [PATCH] Re: your dm patch for strace Mikulas Patocka
2016-10-11 22:38 ` [PATCH 0/9] Additional checks for strace DM ioctl decoder test Eugene Syromyatnikov
2016-10-19 20:31 ` [PATCH] device mapper ioctl Mikulas Patocka
[not found] ` <alpine.LRH.2.02.1610191626360.628-Hpncn10jQN4oNljnaZt3ZvA+iT7yCHsGwRM8/txMwJMAicBL8TP8PQ@public.gmane.org>
2016-11-10 21:01 ` Eugene Syromyatnikov
[not found] ` <CACGkJdts9AKHnXb+b6J2kfpDNZJZW12WaNaYukrA11PHtAydag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-11-11 3:13 ` Masatake YAMATO
2016-10-11 22:38 ` [PATCH 1/9] util: Add support for QUOTE_0_TERMINATED in user_style to ptrintstr_ex Eugene Syromyatnikov
2016-10-11 22:38 ` [PATCH 2/9] tests: Add check for printing of overlength strings to ioctl_dm test Eugene Syromyatnikov
2016-10-11 22:38 ` [PATCH 3/9] tests: Add check for presence of HAVE_LINUX_DM_IOCTL_H macro definition " Eugene Syromyatnikov
2016-10-11 22:38 ` [PATCH 4/9] tests/ioctl_dm: whitespace Eugene Syromyatnikov
2016-10-11 22:38 ` [PATCH 5/9] dm: Fix comma printing for the case when dm_target_msg structure is inaccessible Eugene Syromyatnikov
2016-10-11 22:39 ` [PATCH 6/9] tests/ioctl_dm: overly long string printing checks Eugene Syromyatnikov
2016-10-11 22:39 ` [PATCH 7/9] tests: Some additional checks for ioctl_dm test Eugene Syromyatnikov
2016-10-11 22:39 ` [PATCH 8/9] tests: Add ioctl_dm to .gitignore Eugene Syromyatnikov
2016-10-11 22:39 ` [PATCH 9/9] tests: Add checks for abbreviated DM ioctl output Eugene Syromyatnikov
2016-10-08 17:45 ` [PATCH] Re: your dm patch for strace Eugene Syromyatnikov
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