Re: [Outreachy kernel] [PATCH] Staging: dgnc: Remove unused variables from structure definition

From: Julia Lawall
Date: Sat Sep 16 2017 - 07:50:34 EST




On Sat, 16 Sep 2017, Srishti Sharma wrote:

> Some variables in the structure were unused and hence them and
> the comments associated with them can be removed.

How did you find these? The last two can easily be checked with grep, but
that is ont the case for type.

Actually there are two structures in the file with useless
proc_entry_pointer fields. The other one has a useless
dgnc_channel_table. It could be reasonable to make a series to do both
structures.

julia

>
> Signed-off-by: Srishti Sharma <srishtishar@xxxxxxxxx>
> ---
> drivers/staging/dgnc/dgnc_driver.h | 10 ----------
> 1 file changed, 10 deletions(-)
>
> diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
> index 764d6fe..2b625cc 100644
> --- a/drivers/staging/dgnc/dgnc_driver.h
> +++ b/drivers/staging/dgnc/dgnc_driver.h
> @@ -103,8 +103,6 @@ struct board_ops {
> /**
> * struct dgnc_board - Per board information.
> * @boardnum: Board number (0 - 32).
> - *
> - * @type: Type of board.
> * @name: Product name.
> * @pdev: Pointer to the pci_dev structure.
> * @bd_flags: Board flags.
> @@ -140,13 +138,9 @@ struct board_ops {
> * @dpastatus: Board status as defined by DPA.
> * @bd_dividend: Board/UART's specific dividend.
> * @bd_ops: Pointer to board operations structure.
> - * @proc_entry_pointer: Proc/<board> entry
> - * @dgnc_board_table: Proc/<board> entry
> */
> struct dgnc_board {
> int boardnum;
> -
> - int type;
> char *name;
> struct pci_dev *pdev;
> unsigned long bd_flags;
> @@ -200,10 +194,6 @@ struct dgnc_board {
> uint bd_dividend;
>
> struct board_ops *bd_ops;
> -
> - struct proc_dir_entry *proc_entry_pointer;
> - struct dgnc_proc_entry *dgnc_board_table;
> -
> };
>
> /* Unit flag definitions for un_flags. */
> --
> 2.7.4
>
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