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Date: Mon, 18 Jul 2016 16:48:40 +0200
From: Phil Sutter <phil@....cc>
To: Stephen Hemminger <shemming@...cade.com>
Cc: Daniel Borkmann <daniel@...earbox.net>,
David Ahern <dsa@...ulusnetworks.com>,
Nicolas Dichtel <nicolas.dichtel@...nd.com>,
Julien Floret <julien.floret@...nd.com>,
David Laight <David.Laight@...LAB.COM>, netdev@...r.kernel.org
Subject: [iproute PATCH v5 0/5] Big C99 style initializer rework
This is v5 of my C99-style initializer related patch series. The changes
since v4 are:
- Rebased to current origin/master with just a minor context conflict in
patch 2.
For reference, here's the v4 changelog:
- Use empty initializer instead of the universal zero initializer:
The latter one triggers warnings in older GCCs, and this appears to
be the least intrusive workaround. Plus, empty initializers are used
all over the code already, so it won't make things worse. (GCC in
pedantic mode does not like them, but that is a can of worms by
itself.)
- Dropped patch 6 (unsigned value comparison simplification):
It unintendedly changes that comparison's semantics, and I am not
completely sure the change is correct - therefore rather leave it as
is.
- Rebased onto current origin/master again (no conflicts).
For reference, here's the v3 changelog:
- Flattened embedded struct's initializers:
Since the field names are very short, I figured it makes more sense to
keep indenting low. Also, the same style is already used in
ip/xfrm_policy.c so take that as an example.
- Moved leftover nlmsg_seq initializing into the common place as well:
I was unsure whether this is a good idea at first (due to the
increment), but again it's done in ip/xfrm_policy.c as well so should
be fine.
- Added a comma after the last field initializer as suggested by Jakub.
- Dropped patch 7 since it was NACKed.
- Eliminated checkpatch non-compliance.
- Second go at union bpf_attr in tc/tc_bpf.c:
I figured that while it is not possible to initialize fields, gcc-3.4.6
does not complain when setting the whole union to zero using '= {0}'.
So I did this and thereby at least got rid of the memset calls.
For reference, here's the v2 changelog:
- Rebased onto current upstream master:
My own commit a0a73b298a579 ("tc: m_action: Use C99 style initializers
for struct req") contains most of the changes to tc/m_action.c already,
so I put the remaining ones into a dedicated patch (the first one here)
with a better description.
- Tested against gcc-3.4.6:
This is the oldest gcc version I was able to install locally. It indeed
does not like the former changes in tc/tc_bpf.c, so I reverted them.
Apart from emitting many warnings, it successfully compiles the
sources.
In the process of compatibility testing, I made a few more changes which
make sense to have:
- New patch 5 allows to conveniently override the compiler via command
line.
- New patch 6 eliminates a warning with old gcc but looks valid in
general.
- A warning made me look at ip/tcp_metrics.c and I found a minor code
simplification (patch 7).
Phil Sutter (5):
tc: m_action: Improve conversion to C99 style initializers
Use C99 style initializers everywhere
Replace malloc && memset by calloc
No need to initialize rtattr fields before parsing
Makefile: Allow to override CC
Makefile | 4 +-
bridge/fdb.c | 25 ++++++------
bridge/link.c | 14 +++----
bridge/mdb.c | 17 ++++-----
bridge/vlan.c | 17 ++++-----
genl/ctrl.c | 44 +++++++++------------
genl/genl.c | 3 +-
ip/ip6tunnel.c | 10 ++---
ip/ipaddress.c | 33 +++++++---------
ip/ipaddrlabel.c | 21 ++++------
ip/iplink.c | 61 ++++++++++++-----------------
ip/iplink_can.c | 4 +-
ip/ipmaddr.c | 25 ++++--------
ip/ipmroute.c | 8 +---
ip/ipneigh.c | 30 ++++++---------
ip/ipnetconf.c | 10 ++---
ip/ipnetns.c | 39 +++++++++----------
ip/ipntable.c | 25 ++++--------
ip/iproute.c | 78 +++++++++++++------------------------
ip/iprule.c | 22 +++++------
ip/iptoken.c | 19 ++++-----
ip/iptunnel.c | 31 +++++----------
ip/ipxfrm.c | 26 ++++---------
ip/link_gre.c | 18 ++++-----
ip/link_gre6.c | 18 ++++-----
ip/link_ip6tnl.c | 25 +++++-------
ip/link_iptnl.c | 22 +++++------
ip/link_vti.c | 18 ++++-----
ip/link_vti6.c | 18 ++++-----
ip/xfrm_policy.c | 99 +++++++++++++++++++----------------------------
ip/xfrm_state.c | 110 ++++++++++++++++++++++-------------------------------
lib/libnetlink.c | 77 ++++++++++++++-----------------------
lib/ll_map.c | 1 -
lib/names.c | 7 +---
misc/arpd.c | 64 ++++++++++++++-----------------
misc/lnstat.c | 6 +--
misc/lnstat_util.c | 4 +-
misc/ss.c | 37 +++++++-----------
tc/e_bpf.c | 7 +---
tc/em_canid.c | 4 +-
tc/em_cmp.c | 4 +-
tc/em_ipset.c | 4 +-
tc/em_meta.c | 4 +-
tc/em_nbyte.c | 4 +-
tc/em_u32.c | 4 +-
tc/f_flow.c | 3 --
tc/f_flower.c | 3 +-
tc/f_fw.c | 6 +--
tc/f_route.c | 3 --
tc/f_rsvp.c | 6 +--
tc/f_u32.c | 12 ++----
tc/m_action.c | 26 ++++---------
tc/m_bpf.c | 5 +--
tc/m_csum.c | 4 +-
tc/m_ematch.c | 4 +-
tc/m_gact.c | 5 +--
tc/m_ife.c | 5 +--
tc/m_ipt.c | 13 ++-----
tc/m_mirred.c | 7 +---
tc/m_nat.c | 4 +-
tc/m_pedit.c | 11 ++----
tc/m_police.c | 5 +--
tc/q_atm.c | 3 +-
tc/q_cbq.c | 22 +++--------
tc/q_choke.c | 4 +-
tc/q_codel.c | 3 +-
tc/q_dsmark.c | 1 -
tc/q_fifo.c | 4 +-
tc/q_fq_codel.c | 3 +-
tc/q_hfsc.c | 13 ++-----
tc/q_htb.c | 15 +++-----
tc/q_netem.c | 16 +++-----
tc/q_red.c | 4 +-
tc/q_sfb.c | 17 ++++-----
tc/q_sfq.c | 4 +-
tc/q_tbf.c | 4 +-
tc/tc.c | 9 ++---
tc/tc_bpf.c | 58 ++++++++++------------------
tc/tc_class.c | 38 +++++++-----------
tc/tc_exec.c | 6 +--
tc/tc_filter.c | 33 ++++++----------
tc/tc_qdisc.c | 33 ++++++----------
tc/tc_stab.c | 4 +-
tc/tc_util.c | 3 +-
84 files changed, 564 insertions(+), 976 deletions(-)
--
2.8.2
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