linux-kernel - Re: Help needed, Re: [Bug #14334] pcmcia suspend regression from 2.6.31.1 to 2.6.31.2

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Date:	Mon, 2 Nov 2009 18:38:43 +0100
From:	Dominik Brodowski <linux@...inikbrodowski.net>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Jose Marino <braket@...mail.com>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux PCI <linux-pci@...r.kernel.org>
Subject: Re: Help needed, Re: [Bug #14334] pcmcia suspend regression from
	2.6.31.1 to 2.6.31.2 - Dell Inspiron 600m

Hey,

just two minor nit-pick which we could handle post-2.6.32:

> +++ linux-2.6/drivers/pcmcia/cs.c
> @@ -98,10 +98,13 @@ EXPORT_SYMBOL(pcmcia_socket_list_rwsem);
>   * These functions check for the appropriate struct pcmcia_soket arrays,
>   * and pass them to the low-level functions pcmcia_{suspend,resume}_socket

... some documentation of the new functions, especially whether other socket
drivers should be updated?

> -static int socket_resume(struct pcmcia_socket *skt)
> +static void socket_start_resume(struct pcmcia_socket *skt)
>  {
> -	int ret;
> -
> -	if (!(skt->state & SOCKET_SUSPEND))
> -		return -EBUSY;
> -
>  	skt->socket = dead_socket;
>  	skt->ops->init(skt);
>  	skt->ops->set_socket(skt, &skt->socket);
> +	if (skt->state & SOCKET_PRESENT)
> +		skt->resume_status = socket_setup(skt, resume_delay);
> +}
>  
> +static int socket_early_resume(struct pcmcia_socket *skt)
> +{
> +	socket_start_resume(skt);
> +	return 0;
> +}

Why do we need to have two functions doing the same? Wouldn't

static int socket_early_resume(...)

suffice, with the only call to socket_start_resume() being replaced with
socket_early_resume()?

Best,
	Dominik
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