linux-kernel - Re: [PATCH v8 2/5] seq_buf: Export seq_buf

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Date:   Mon, 01 Jun 2020 17:31:31 +0530
From:   Vaibhav Jain <vaibhav@...ux.ibm.com>
To:     Christoph Hellwig <hch@...radead.org>,
        Steven Rostedt <rostedt@...dmis.org>
Cc:     Santosh Sivaraj <santosh@...six.org>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Piotr Maziarz <piotrx.maziarz@...ux.intel.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Christoph Hellwig <hch@...radead.org>,
        "Oliver O'Halloran" <oohall@...il.com>,
        "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
        Borislav Petkov <bp@...en8.de>,
        Dan Williams <dan.j.williams@...el.com>,
        Ira Weiny <ira.weiny@...el.com>, linuxppc-dev@...ts.ozlabs.org,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 2/5] seq_buf: Export seq_buf_printf


Hi Christoph and Steven,

Have addressed your review comment to update the patch description and
title for this patch. Can you please provide your ack to this patch.

Thanks,
~ Vaibhav

Vaibhav Jain <vaibhav@...ux.ibm.com> writes:

> 'seq_buf' provides a very useful abstraction for writing to a string
> buffer without needing to worry about it over-flowing. However even
> though the API has been stable for couple of years now its still not
> exported to kernel loadable modules limiting its usage.
>
> Hence this patch proposes update to 'seq_buf.c' to mark
> seq_buf_printf() which is part of the seq_buf API to be exported to
> kernel loadable GPL modules. This symbol will be used in later parts
> of this patch-set to simplify content creation for a sysfs attribute.
>
> Cc: Piotr Maziarz <piotrx.maziarz@...ux.intel.com>
> Cc: Cezary Rojewski <cezary.rojewski@...el.com>
> Cc: Christoph Hellwig <hch@...radead.org>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Cc: Borislav Petkov <bp@...en8.de>
> Signed-off-by: Vaibhav Jain <vaibhav@...ux.ibm.com>
> ---
> Changelog:
>
> v7..v8:
> * Updated the patch title [ Christoph Hellwig ]
> * Updated patch description to replace confusing term 'external kernel
>   modules' to 'kernel lodable modules'.
>
> Resend:
> * Added ack from Steven Rostedt
>
> v6..v7:
> * New patch in the series
> ---
>  lib/seq_buf.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/lib/seq_buf.c b/lib/seq_buf.c
> index 4e865d42ab03..707453f5d58e 100644
> --- a/lib/seq_buf.c
> +++ b/lib/seq_buf.c
> @@ -91,6 +91,7 @@ int seq_buf_printf(struct seq_buf *s, const char *fmt, ...)
>  
>  	return ret;
>  }
> +EXPORT_SYMBOL_GPL(seq_buf_printf);
>  
>  #ifdef CONFIG_BINARY_PRINTF
>  /**
> -- 
> 2.26.2
>
--