linux-kernel - Re: [PATCH 2/2] misc/pvpanic: add pci driver

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Message-ID: <YBrEHyvGFAezcH7S@kroah.com>
Date:   Wed, 3 Feb 2021 16:41:19 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Mihai Carabas <mihai.carabas@...cle.com>
Cc:     linux-kernel@...r.kernel.org, arnd@...db.de,
        andriy.shevchenko@...ux.intel.com, bobo.shaobowang@...wei.com
Subject: Re: [PATCH 2/2] misc/pvpanic: add pci driver

On Wed, Feb 03, 2021 at 04:43:59PM +0200, Mihai Carabas wrote:
> Add pvpanic pci device driver support.

What does that mean?  Please provide more changelog text here.

> 
> Signed-off-by: Mihai Carabas <mihai.carabas@...cle.com>
> ---
>  drivers/misc/pvpanic/Kconfig       | 16 ++++++++++-
>  drivers/misc/pvpanic/Makefile      |  7 +++++
>  drivers/misc/pvpanic/pvpanic-pci.c | 54 ++++++++++++++++++++++++++++++++++++++
>  3 files changed, 76 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/misc/pvpanic/pvpanic-pci.c
> 
> diff --git a/drivers/misc/pvpanic/Kconfig b/drivers/misc/pvpanic/Kconfig
> index 12bb017..4a96e8d 100644
> --- a/drivers/misc/pvpanic/Kconfig
> +++ b/drivers/misc/pvpanic/Kconfig
> @@ -1,6 +1,11 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +#
> +# pvpanic device
> +#

While nice, why add this now?

> +
>  config PVPANIC
>  	bool "pvpanic device support"
> -	depends on PVPANIC_MMIO
> +	depends on (PVPANIC_MMIO || PVPANIC_PCI)
>  	help
>  	  This option enable generic code for pvpanic device driver logic.
>  
> @@ -12,3 +17,12 @@ config PVPANIC_MMIO
>  	  This driver provides support for the pvpanic device.  pvpanic is
>  	  a paravirtualized device provided by QEMU; it lets a virtual machine
>  	  (guest) communicate panic events to the host.
> +
> +config PVPANIC_PCI
> +	tristate "pvpanic pci device support"
> +	depends on PCI
> +	select PVPANIC
> +	help
> +	  This driver provides support for the pvpanic device.  pvpanic is
> +	  a paravirtualized device provided by QEMU; it lets a virtual machine
> +	  (guest) communicate panic events to the host.
> diff --git a/drivers/misc/pvpanic/Makefile b/drivers/misc/pvpanic/Makefile
> index d08379b..fe57d1f 100644
> --- a/drivers/misc/pvpanic/Makefile
> +++ b/drivers/misc/pvpanic/Makefile
> @@ -1,2 +1,9 @@
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# Makefile for pvpanic device.
> +#

Again, nice, but nothing to do with this change.  Please only do "one
thing" per patch.

thanks,

greg k-h