From: Hannes Reinecke <hare@suse.de>
To: Bart Van Assche <bvanassche@acm.org>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
"James E . J . Bottomley" <jejb@linux.vnet.ibm.com>
Cc: linux-scsi@vger.kernel.org, Arun Easi <aeasi@marvell.com>,
Himanshu Madhani <himanshu.madhani@oracle.com>,
Nilesh Javali <njavali@marvell.com>,
Quinn Tran <qutran@marvell.com>, Martin Wilck <mwilck@suse.com>,
Daniel Wagner <dwagner@suse.de>,
Roman Bolshakov <r.bolshakov@yadro.com>
Subject: Re: [PATCH v6 15/15] qla2xxx: Fix endianness annotations in source files
Date: Fri, 15 May 2020 08:50:16 +0200 [thread overview]
Message-ID: <77c33a4e-c67c-1978-8b72-ceca58d4309d@suse.de> (raw)
In-Reply-To: <20200514213516.25461-16-bvanassche@acm.org>
On 5/14/20 11:35 PM, Bart Van Assche wrote:
> Fix all endianness complaints reported by sparse (C=2) without affecting
> the behavior of the code on little endian CPUs.
>
> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
> Cc: Nilesh Javali <njavali@marvell.com>
> Cc: Quinn Tran <qutran@marvell.com>
> Cc: Martin Wilck <mwilck@suse.com>
> Cc: Daniel Wagner <dwagner@suse.de>
> Cc: Roman Bolshakov <r.bolshakov@yadro.com>
> Signed-off-by: Bart Van Assche <bvanassche@acm.org>
> ---
> drivers/scsi/qla2xxx/qla_attr.c | 3 +-
> drivers/scsi/qla2xxx/qla_bsg.c | 4 +-
> drivers/scsi/qla2xxx/qla_dbg.c | 87 +++++++++++++++--------------
> drivers/scsi/qla2xxx/qla_init.c | 59 ++++++++++----------
> drivers/scsi/qla2xxx/qla_iocb.c | 71 ++++++++++++-----------
> drivers/scsi/qla2xxx/qla_isr.c | 93 +++++++++++++++----------------
> drivers/scsi/qla2xxx/qla_mbx.c | 37 ++++++------
> drivers/scsi/qla2xxx/qla_mr.c | 9 ++-
> drivers/scsi/qla2xxx/qla_nvme.c | 8 +--
> drivers/scsi/qla2xxx/qla_nx.c | 89 ++++++++++++++---------------
> drivers/scsi/qla2xxx/qla_os.c | 27 ++++-----
> drivers/scsi/qla2xxx/qla_sup.c | 69 ++++++++++++-----------
> drivers/scsi/qla2xxx/qla_target.c | 86 ++++++++++++++--------------
> drivers/scsi/qla2xxx/qla_tmpl.c | 4 +-
> 14 files changed, 328 insertions(+), 318 deletions(-)
>
All looks good, but:
> diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c
> index f05a4fa2b9d7..b91ec1c3a3ae 100644
> --- a/drivers/scsi/qla2xxx/qla_tmpl.c
> +++ b/drivers/scsi/qla2xxx/qla_tmpl.c
> @@ -922,9 +922,9 @@ qla27xx_firmware_info(struct scsi_qla_host *vha,
> tmp->firmware_version[0] = vha->hw->fw_major_version;
> tmp->firmware_version[1] = vha->hw->fw_minor_version;
> tmp->firmware_version[2] = vha->hw->fw_subminor_version;
> - tmp->firmware_version[3] = cpu_to_le32(
> + tmp->firmware_version[3] = (__force u32)cpu_to_le32(
> vha->hw->fw_attributes_h << 16 | vha->hw->fw_attributes);
> - tmp->firmware_version[4] = cpu_to_le32(
> + tmp->firmware_version[4] = (__force u32)cpu_to_le32(
> vha->hw->fw_attributes_ext[1] << 16 | vha->hw->fw_attributes_ext[0]);
> }
>
>
Why do you need (__force u32) here?
It should be a 32bit array, and cpu_to_le32() trivially returns 32bits.
What's there to force?
Otherwise:
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
next prev parent reply other threads:[~2020-05-15 6:50 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-14 21:35 [PATCH v6 00/15] Fix qla2xxx endianness annotations Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 01/15] qla2xxx: Fix spelling of a variable name Bart Van Assche
2020-05-15 23:05 ` Roman Bolshakov
2020-05-14 21:35 ` [PATCH v6 02/15] qla2xxx: Suppress two recently introduced compiler warnings Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 03/15] qla2xxx: Simplify the functions for dumping firmware Bart Van Assche
2020-05-15 6:38 ` Hannes Reinecke
2020-05-15 7:57 ` Daniel Wagner
2020-05-14 21:35 ` [PATCH v6 04/15] qla2xxx: Sort BUILD_BUG_ON() statements alphabetically Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 05/15] qla2xxx: Add more BUILD_BUG_ON() statements Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 06/15] qla2xxx: Make a gap in struct qla2xxx_offld_chain explicit Bart Van Assche
2020-05-15 15:44 ` Himanshu Madhani
2020-05-14 21:35 ` [PATCH v6 07/15] qla2xxx: Increase the size of struct qla_fcp_prio_cfg to FCP_PRIO_CFG_SIZE Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 08/15] qla2xxx: Change two hardcoded constants into offsetof() / sizeof() expressions Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 09/15] qla2xxx: Use register names instead of register offsets Bart Van Assche
2020-05-15 8:25 ` Daniel Wagner
2020-05-15 15:54 ` Himanshu Madhani
2020-05-14 21:35 ` [PATCH v6 10/15] qla2xxx: Fix the code that reads from mailbox registers Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 11/15] qla2xxx: Change {RD,WRT}_REG_*() function names from upper case into lower case Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 12/15] qla2xxx: Cast explicitly to uint16_t / uint32_t Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 13/15] qla2xxx: Use make_handle() instead of open-coding it Bart Van Assche
2020-05-15 6:39 ` Hannes Reinecke
2020-05-15 8:28 ` Daniel Wagner
2020-05-15 15:58 ` Himanshu Madhani
2020-05-15 22:55 ` Roman Bolshakov
2020-05-14 21:35 ` [PATCH v6 14/15] qla2xxx: Fix endianness annotations in header files Bart Van Assche
2020-05-14 21:35 ` [PATCH v6 15/15] qla2xxx: Fix endianness annotations in source files Bart Van Assche
2020-05-15 6:50 ` Hannes Reinecke [this message]
2020-05-15 19:22 ` Bart Van Assche
2020-05-18 6:18 ` Hannes Reinecke
2020-05-15 9:44 ` Daniel Wagner
2020-05-18 21:13 ` Bart Van Assche
2020-05-19 15:27 ` Daniel Wagner
2020-05-19 16:17 ` Bart Van Assche
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