netdev - Re: [PATCH 01/15] devlink: prepare to support region operations

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Date:   Mon, 3 Feb 2020 09:07:27 -0800
From:   Jacob Keller <jacob.e.keller@...el.com>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, valex@...lanox.com, linyunsheng@...wei.com,
        lihong.yang@...el.com
Subject: Re: [PATCH 01/15] devlink: prepare to support region operations

On 2/3/2020 3:35 AM, Jiri Pirko wrote:
> Thu, Jan 30, 2020 at 11:58:56PM CET, jacob.e.keller@...el.com wrote:
>> Modify the devlink region code in preparation for adding new operations
>> on regions.
>>
>> Create a devlink_region_ops structure, and move the name pointer from
>> within the devlink_region structure into the ops structure (similar to
>> the devlink_health_reporter_ops).
>>
>> This prepares the regions to enable support of additional operations in
>> the future such as requesting snapshots, or accessing the region
>> directly without a snapshot.
>>
>> Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
>> ---
>> drivers/net/ethernet/mellanox/mlx4/crdump.c | 25 ++++++++++++---------
>> drivers/net/netdevsim/dev.c                 |  6 ++++-
>> include/net/devlink.h                       | 17 ++++++++++----
>> net/core/devlink.c                          | 23 ++++++++++---------
>> 4 files changed, 45 insertions(+), 26 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/mellanox/mlx4/crdump.c b/drivers/net/ethernet/mellanox/mlx4/crdump.c
>> index 64ed725aec28..4cea64033919 100644
>> --- a/drivers/net/ethernet/mellanox/mlx4/crdump.c
>> +++ b/drivers/net/ethernet/mellanox/mlx4/crdump.c
>> @@ -38,8 +38,13 @@
>> #define CR_ENABLE_BIT_OFFSET		0xF3F04
>> #define MAX_NUM_OF_DUMPS_TO_STORE	(8)
>>
>> -static const char *region_cr_space_str = "cr-space";
>> -static const char *region_fw_health_str = "fw-health";
> 
> Just leave these as are and use in ops and messages. It is odd to use
> ops.name in the message.
> 

So this produces the following errors, not 100% sure how to resolve:


> drivers/net/ethernet/mellanox/mlx4/crdump.c:45:10: error: initializer element is not constant
>    45 |  .name = region_cr_space_str,
>       |          ^~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/mellanox/mlx4/crdump.c:45:10: note: (near initialization for ‘region_cr_space_ops.name’)
> drivers/net/ethernet/mellanox/mlx4/crdump.c:49:10: error: initializer element is not constant
>    49 |  .name = region_fw_health_str,
>       |          ^~~~~~~~~~~~~~~~~~~~


Thanks,
Jake