linux-kernel - Re: [PATCH v1 5/8] scsi: ufs: creates wrapper functions for vops

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Date:	Wed, 19 Aug 2015 21:19:04 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	Yaniv Gardi <ygardi@...eaurora.org>
Cc:	Rob Herring <robherring2@...il.com>,
	Jej B <James.Bottomley@...senpartnership.com>,
	Paul Bolle <pebolle@...cali.nl>,
	Christoph Hellwig <hch@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	linux-arm-msm@...r.kernel.org, Santosh Y <santoshsy@...il.com>,
	linux-scsi-owner@...r.kernel.org,
	Subhash Jadavani <subhashj@...eaurora.org>,
	Gilad Broner <gbroner@...eaurora.org>,
	Dolev Raviv <draviv@...eaurora.org>,
	Vinayak Holikatti <vinholikatti@...il.com>,
	"James E.J. Bottomley" <JBottomley@...n.com>
Subject: Re: [PATCH v1 5/8] scsi: ufs: creates wrapper functions for vops

2015-08-16 19:14 GMT+09:00 Yaniv Gardi <ygardi@...eaurora.org>:
> In order to simplify the code a set of wrapper functions is created
> to test and call each of the variant operations.
>
> Signed-off-by: Yaniv Gardi <ygardi@...eaurora.org>
>
> ---
>  drivers/scsi/ufs/ufs-qcom.c |   3 +-
>  drivers/scsi/ufs/ufshcd.c   | 104 +++++++++++++++++---------------------------
>  drivers/scsi/ufs/ufshcd.h   |  98 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 138 insertions(+), 67 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
> index 64c54b7..a6b7e10 100644
> --- a/drivers/scsi/ufs/ufs-qcom.c
> +++ b/drivers/scsi/ufs/ufs-qcom.c
> @@ -1036,7 +1036,7 @@ void ufs_qcom_clk_scale_notify(struct ufs_hba *hba)
>   * The variant operations configure the necessary controller and PHY
>   * handshake during initialization.
>   */
> -static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
> +static struct ufs_hba_variant_ops ufs_hba_qcom_vops = {

Why do we need to drop 'const'?

>         .name                   = "qcom",
>         .init                   = ufs_qcom_init,
>         .exit                   = ufs_qcom_exit,
> @@ -1049,6 +1049,5 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
>         .suspend                = ufs_qcom_suspend,
>         .resume                 = ufs_qcom_resume,
>  };
> -EXPORT_SYMBOL(ufs_hba_qcom_vops);

In patch 8, ufs_hba_qcom_vops is exported again...
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