linux-kernel - Re: [PATCH v3 2/4] platform/x86: dell

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Message-ID: <d7adf2ca-0cd7-99eb-9be1-a2b37fa8445e@linux.intel.com>
Date: Fri, 30 May 2025 10:54:30 +0300 (EEST)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Stuart Hayes <stuart.w.hayes@...il.com>
cc: LKML <linux-kernel@...r.kernel.org>, Hans de Goede <hdegoede@...hat.com>, 
    platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v3 2/4] platform/x86: dell_rbu: Fix list usage

On Thu, 29 May 2025, Stuart Hayes wrote:

> Stop using an entire struct packet_data just for the embedded list_head,
> and fix usage of that list_head.
> 
> Fixes: d19f359fbdc6 ("platform/x86: dell_rbu: don't open code list_for_each_entry*()")
> Signed-off-by: Stuart Hayes <stuart.w.hayes@...il.com>

Isn't this just refactor so Fixes tag for this commit is not warranted?

> ---
>  drivers/platform/x86/dell/dell_rbu.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/platform/x86/dell/dell_rbu.c b/drivers/platform/x86/dell/dell_rbu.c
> index 7b019fb72e86..c03d4d55fcc1 100644
> --- a/drivers/platform/x86/dell/dell_rbu.c
> +++ b/drivers/platform/x86/dell/dell_rbu.c
> @@ -77,14 +77,14 @@ struct packet_data {
>  	int ordernum;
>  };
>  
> -static struct packet_data packet_data_head;
> +static struct list_head packet_data_list;
>  
>  static struct platform_device *rbu_device;
>  static int context;
>  
>  static void init_packet_head(void)
>  {
> -	INIT_LIST_HEAD(&packet_data_head.list);
> +	INIT_LIST_HEAD(&packet_data_list);
>  	rbu_data.packet_read_count = 0;
>  	rbu_data.num_packets = 0;
>  	rbu_data.packetsize = 0;
> @@ -183,7 +183,7 @@ static int create_packet(void *data, size_t length) __must_hold(&rbu_data.lock)
>  
>  	/* initialize the newly created packet headers */
>  	INIT_LIST_HEAD(&newpacket->list);
> -	list_add_tail(&newpacket->list, &packet_data_head.list);
> +	list_add_tail(&newpacket->list, &packet_data_list);
>  
>  	memcpy(newpacket->data, data, length);
>  
> @@ -292,7 +292,7 @@ static int packet_read_list(char *data, size_t * pread_length)
>  	remaining_bytes = *pread_length;
>  	bytes_read = rbu_data.packet_read_count;
>  
> -	list_for_each_entry(newpacket, (&packet_data_head.list)->next, list) {
> +	list_for_each_entry(newpacket, &packet_data_list, list) {
>  		bytes_copied = do_packet_read(pdest, newpacket,
>  			remaining_bytes, bytes_read, &temp_count);
>  		remaining_bytes -= bytes_copied;
> @@ -315,7 +315,7 @@ static void packet_empty_list(void)
>  {
>  	struct packet_data *newpacket, *tmp;
>  
> -	list_for_each_entry_safe(newpacket, tmp, (&packet_data_head.list)->next, list) {
> +	list_for_each_entry_safe(newpacket, tmp, &packet_data_list, list) {
>  		list_del(&newpacket->list);
>  
>  		/*
> 

-- 
 i.