From: Andrew Rybchenko <arybchenko@solarflare.com>
To: Stephen Hemminger <stephen@networkplumber.org>, <dev@dpdk.org>
Cc: Bruce Richardson <bruce.richardson@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3 5/6] net/ether: mark ethernet addresses as being 2-byte aligned
Date: Wed, 5 Jun 2019 12:04:20 +0300 [thread overview]
Message-ID: <005bbc2d-da32-cdad-8fb3-cf580e942529@solarflare.com> (raw)
In-Reply-To: <20190605010852.28395-6-stephen@networkplumber.org>
On 6/5/19 4:08 AM, Stephen Hemminger wrote:
> From: Bruce Richardson <bruce.richardson@intel.com>
>
> When including the rte_ether.h header in applications with warnings
> enabled, a warning was given because of the assumption of 2-byte alignment
> of ethernet addresses when processing them.
>
> .../include/rte_ether.h:149:2: warning: converting a packed ‘const
> struct ether_addr’ pointer (alignment 1) to a ‘unaligned_uint16_t’
> {aka ‘const short unsigned int’} pointer (alignment 2) may result in
> an unaligned pointer value [-Waddress-of-packed-member]
> 149 | const unaligned_uint16_t *ea_words = (const unaligned_uint16_t *)ea;
> | ^~~~~
>
> Since ethernet addresses should always be aligned on a two-byte boundary,
> we can just inform the compiler of this assumption to remove the warnings
> and allow us to always access the addresses using 16-bit operations.
>
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
next prev parent reply other threads:[~2019-06-05 9:04 UTC|newest]
Thread overview: 127+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-16 18:04 [dpdk-dev] [PATCH v2 0/7] ether: improvements and optimizations Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 1/7] ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 2/7] ether: do not mark ethernet address and header as packed Stephen Hemminger
2019-05-16 20:40 ` Bruce Richardson
2019-05-16 23:17 ` Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 3/7] ether: deinline non-critical functions Stephen Hemminger
2019-05-16 18:29 ` Rami Rosen
2019-05-17 7:08 ` David Marchand
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 4/7] ether: add eth_unformat_addr Stephen Hemminger
2019-05-17 7:08 ` David Marchand
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 5/7] ethdev: use eth_unformat_addr Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 6/7] ether: use bitops to speedup comparison Stephen Hemminger
2019-05-16 18:04 ` [dpdk-dev] [PATCH v2 7/7] cmdline: use ether_unformat_addr Stephen Hemminger
2019-06-05 1:08 ` [dpdk-dev] [PATCH v3 0/6] net/ether: improvements and optimizations Stephen Hemminger
2019-06-05 1:08 ` [dpdk-dev] [PATCH v3 1/6] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-06-05 8:44 ` Andrew Rybchenko
2019-06-05 16:29 ` Stephen Hemminger
2019-06-05 1:08 ` [dpdk-dev] [PATCH v3 2/6] net/ether: add rte_eth_unformat_addr Stephen Hemminger
2019-06-05 8:55 ` Andrew Rybchenko
2019-06-05 16:31 ` Stephen Hemminger
2019-06-05 1:08 ` [dpdk-dev] [PATCH v3 3/6] ethdev: use rte_eth_unformat_addr Stephen Hemminger
2019-06-05 8:59 ` Andrew Rybchenko
2019-06-05 15:02 ` Stephen Hemminger
2019-06-05 16:33 ` Stephen Hemminger
2019-06-05 1:08 ` [dpdk-dev] [PATCH v3 4/6] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-06-05 9:02 ` Andrew Rybchenko
2019-06-05 1:08 ` [dpdk-dev] [PATCH v3 5/6] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-06-05 9:04 ` Andrew Rybchenko [this message]
2019-06-05 1:08 ` [dpdk-dev] [PATCH v3 6/6] cmdline: use rte_ether_unformat_addr Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 0/8] net/ether: enhancements and optimizations Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 1/8] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-06-06 8:06 ` Maxime Coquelin
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 2/8] net/ether: add rte_eth_unformat_addr Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 3/8] ethdev: use rte_eth_unformat_addr Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 4/8] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 5/8] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-06-07 16:59 ` Ananyev, Konstantin
2019-06-07 18:35 ` Stephen Hemminger
2019-06-07 20:40 ` Richardson, Bruce
2019-06-08 11:51 ` Ananyev, Konstantin
2019-06-07 20:39 ` Richardson, Bruce
2019-06-08 12:15 ` Ananyev, Konstantin
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 6/8] cmdline: use rte_ether_unformat_addr Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 7/8] net/bonding: use rte_ether_unformat_addr rather than cmdline_parse Stephen Hemminger
2019-06-05 18:09 ` [dpdk-dev] [PATCH v4 8/8] app/testpmd: use rte_ether_unformat_addr Stephen Hemminger
2019-06-20 14:18 ` Iremonger, Bernard
2019-06-20 16:12 ` Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 0/8] net/ether: enhancements and optimizations Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 1/8] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-07-02 7:56 ` Olivier Matz
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 2/8] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 3/8] ethdev: use new ethernet parsing function Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 4/8] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-02 7:53 ` Olivier Matz
2019-07-02 9:26 ` Olivier Matz
2019-07-02 15:28 ` Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 5/8] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 6/8] cmdline: use new ethernet address parser Stephen Hemminger
[not found] ` <8688172CD5C0B74590FAE19D9579F94B53742875@SHSMSX103.ccr.corp.intel.com>
2019-07-16 16:17 ` Stephen Hemminger
2019-07-17 14:04 ` Aaron Conole
2019-07-17 14:39 ` Olivier Matz
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 7/8] net/bonding: " Stephen Hemminger
2019-06-24 20:44 ` [dpdk-dev] [PATCH v5 8/8] app/testpmd: " Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 0/8] net/ether: enhancements and optimizations Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 1/8] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 2/8] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 3/8] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 4/8] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 5/8] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-07-02 21:46 ` Ananyev, Konstantin
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 6/8] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 7/8] net/bonding: " Stephen Hemminger
2019-07-02 16:50 ` [dpdk-dev] [PATCH v6 8/8] app/testpmd: " Stephen Hemminger
2019-07-02 21:37 ` [dpdk-dev] [PATCH v6 0/8] net/ether: enhancements and optimizations Thomas Monjalon
2019-07-02 22:03 ` Stephen Hemminger
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 00/12] ether: improvements " Stephen Hemminger
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 01/12] net/rte_ether: deinline non-critical functions Stephen Hemminger
2019-07-05 14:25 ` Olivier Matz
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 02/12] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-05 14:25 ` Olivier Matz
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 03/12] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 04/12] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-05 14:34 ` Olivier Matz
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 05/12] net/ether: mark ethernet addresses as being 2-byte aligned Stephen Hemminger
2019-07-05 14:34 ` Olivier Matz
2019-07-05 15:45 ` Richardson, Bruce
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 06/12] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-05 14:46 ` Olivier Matz
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 07/12] net/bonding: " Stephen Hemminger
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 08/12] app/testpmd: " Stephen Hemminger
2019-07-03 13:30 ` Iremonger, Bernard
2019-07-05 17:12 ` Stephen Hemminger
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 09/12] net/virtio: use new ether addr parsing Stephen Hemminger
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 10/12] net/failsafe: use common ether address parsing routine Stephen Hemminger
2019-07-03 9:10 ` Gaëtan Rivet
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 11/12] net/vdev_netvsc: use common ethernet address parsing Stephen Hemminger
2019-07-03 8:12 ` Matan Azrad
2019-07-02 22:12 ` [dpdk-dev] [PATCH v7 12/12] net/memif: use common ethernet address parsing routine Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 00/11] ether: improvements and optimizations Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 01/11] net/ether: deinline non-critical functions Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 02/11] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 03/11] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 04/11] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 05/11] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 06/11] net/bonding: " Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 07/11] app/testpmd: " Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 08/11] net/virtio: use new ether addr parsing Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 09/11] net/failsafe: use common ether address parsing routine Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 10/11] net/vdev_netvsc: use common ethernet address parsing Stephen Hemminger
2019-07-05 17:16 ` [dpdk-dev] [PATCH v8 11/11] net/memif: use common ethernet address parsing routine Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 00/11] ether: improvements and optimizations Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 01/11] net/ether: deinline non-critical functions Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 02/11] net/ether: add function to convert string to ethernet address Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 03/11] ethdev: use new ethernet parsing function Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 04/11] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 05/11] cmdline: use new ethernet address parser Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 06/11] net/bonding: " Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 07/11] app/testpmd: " Stephen Hemminger
2019-07-21 13:42 ` Raslan Darawsheh
2019-07-22 12:09 ` Thomas Monjalon
2019-07-22 16:15 ` Ferruh Yigit
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 08/11] net/virtio: use new ether addr parsing Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 09/11] net/failsafe: use common ether address parsing routine Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 10/11] net/vdev_netvsc: use common ethernet address parsing Stephen Hemminger
2019-07-08 18:26 ` [dpdk-dev] [PATCH v9 11/11] net/memif: use common ethernet address parsing routine Stephen Hemminger
2019-07-08 19:13 ` [dpdk-dev] [PATCH v9 00/11] ether: improvements and optimizations Ferruh Yigit
2019-07-09 15:01 ` Bruce Richardson
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