linux-kernel - Re: [PATCH] bus: fsl-mc: Remove deadcode

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Message-ID: <3f9dbb7b-6527-48e1-9028-b46e5a0c58ce@csgroup.eu>
Date: Sat, 16 Nov 2024 11:33:00 +0100
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: linux@...blig.org, ioana.ciornei@....com, stuyoder@...il.com
Cc: linuxppc-dev@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bus: fsl-mc: Remove deadcode



Le 15/11/2024 à 16:20, linux@...blig.org a écrit :
> [Vous ne recevez pas souvent de courriers de linux@...blig.org. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]
> 
> From: "Dr. David Alan Gilbert" <linux@...blig.org>
> 
> fsl_mc_allocator_driver_exit() was added explicitly by
> commit 1e8ac83b6caf ("bus: fsl-mc: add fsl_mc_allocator cleanup function")
> but was never used.
> 
> Remove it.
> 
> fsl_mc_portal_reset() was added in 2015 by
> commit 197f4d6a4a00 ("staging: fsl-mc: fsl-mc object allocator driver")
> but was never used.
> 
> Remove it.
> 
> fsl_mc_portal_reset() was the only caller of dpmcp_reset().
> 
> Remove it.
> 
> Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>

Acked-by: Christophe Leroy <christophe.leroy@...roup.eu>

> ---
>   drivers/bus/fsl-mc/dpmcp.c            | 22 ----------------------
>   drivers/bus/fsl-mc/fsl-mc-allocator.c |  5 -----
>   drivers/bus/fsl-mc/fsl-mc-private.h   |  6 ------
>   drivers/bus/fsl-mc/mc-io.c            | 20 --------------------
>   include/linux/fsl/mc.h                |  2 --
>   5 files changed, 55 deletions(-)
> 
> diff --git a/drivers/bus/fsl-mc/dpmcp.c b/drivers/bus/fsl-mc/dpmcp.c
> index 5fbd0dbde24a..7816c0a728ef 100644
> --- a/drivers/bus/fsl-mc/dpmcp.c
> +++ b/drivers/bus/fsl-mc/dpmcp.c
> @@ -75,25 +75,3 @@ int dpmcp_close(struct fsl_mc_io *mc_io,
>          /* send command to mc*/
>          return mc_send_command(mc_io, &cmd);
>   }
> -
> -/**
> - * dpmcp_reset() - Reset the DPMCP, returns the object to initial state.
> - * @mc_io:     Pointer to MC portal's I/O object
> - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
> - * @token:     Token of DPMCP object
> - *
> - * Return:     '0' on Success; Error code otherwise.
> - */
> -int dpmcp_reset(struct fsl_mc_io *mc_io,
> -               u32 cmd_flags,
> -               u16 token)
> -{
> -       struct fsl_mc_command cmd = { 0 };
> -
> -       /* prepare command */
> -       cmd.header = mc_encode_cmd_header(DPMCP_CMDID_RESET,
> -                                         cmd_flags, token);
> -
> -       /* send command to mc*/
> -       return mc_send_command(mc_io, &cmd);
> -}
> diff --git a/drivers/bus/fsl-mc/fsl-mc-allocator.c b/drivers/bus/fsl-mc/fsl-mc-allocator.c
> index b5e8c021fa1f..6c3beb82dd1b 100644
> --- a/drivers/bus/fsl-mc/fsl-mc-allocator.c
> +++ b/drivers/bus/fsl-mc/fsl-mc-allocator.c
> @@ -656,8 +656,3 @@ int __init fsl_mc_allocator_driver_init(void)
>   {
>          return fsl_mc_driver_register(&fsl_mc_allocator_driver);
>   }
> -
> -void fsl_mc_allocator_driver_exit(void)
> -{
> -       fsl_mc_driver_unregister(&fsl_mc_allocator_driver);
> -}
> diff --git a/drivers/bus/fsl-mc/fsl-mc-private.h b/drivers/bus/fsl-mc/fsl-mc-private.h
> index b3520ea1b9f4..e1b7ec3ed1a7 100644
> --- a/drivers/bus/fsl-mc/fsl-mc-private.h
> +++ b/drivers/bus/fsl-mc/fsl-mc-private.h
> @@ -66,10 +66,6 @@ int dpmcp_close(struct fsl_mc_io *mc_io,
>                  u32 cmd_flags,
>                  u16 token);
> 
> -int dpmcp_reset(struct fsl_mc_io *mc_io,
> -               u32 cmd_flags,
> -               u16 token);
> -
>   /*
>    * Data Path Resource Container (DPRC) API
>    */
> @@ -631,8 +627,6 @@ int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
> 
>   int __init fsl_mc_allocator_driver_init(void);
> 
> -void fsl_mc_allocator_driver_exit(void);
> -
>   void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
> 
>   void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
> diff --git a/drivers/bus/fsl-mc/mc-io.c b/drivers/bus/fsl-mc/mc-io.c
> index 95b10a6cf307..a0ad7866cbfc 100644
> --- a/drivers/bus/fsl-mc/mc-io.c
> +++ b/drivers/bus/fsl-mc/mc-io.c
> @@ -263,23 +263,3 @@ void fsl_mc_portal_free(struct fsl_mc_io *mc_io)
>          dpmcp_dev->consumer_link = NULL;
>   }
>   EXPORT_SYMBOL_GPL(fsl_mc_portal_free);
> -
> -/**
> - * fsl_mc_portal_reset - Resets the dpmcp object for a given fsl_mc_io object
> - *
> - * @mc_io: Pointer to the fsl_mc_io object that wraps the MC portal to free
> - */
> -int fsl_mc_portal_reset(struct fsl_mc_io *mc_io)
> -{
> -       int error;
> -       struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev;
> -
> -       error = dpmcp_reset(mc_io, 0, dpmcp_dev->mc_handle);
> -       if (error < 0) {
> -               dev_err(&dpmcp_dev->dev, "dpmcp_reset() failed: %d\n", error);
> -               return error;
> -       }
> -
> -       return 0;
> -}
> -EXPORT_SYMBOL_GPL(fsl_mc_portal_reset);
> diff --git a/include/linux/fsl/mc.h b/include/linux/fsl/mc.h
> index c90ec889bfc2..37316a58d2ed 100644
> --- a/include/linux/fsl/mc.h
> +++ b/include/linux/fsl/mc.h
> @@ -417,8 +417,6 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev,
> 
>   void fsl_mc_portal_free(struct fsl_mc_io *mc_io);
> 
> -int fsl_mc_portal_reset(struct fsl_mc_io *mc_io);
> -
>   int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev,
>                                          enum fsl_mc_pool_type pool_type,
>                                          struct fsl_mc_device **new_mc_adev);
> --
> 2.47.0
>