Re: [v3,04/11] watchdog/hpwdt: white space changes

From: Guenter Roeck
Date: Sat Feb 17 2018 - 11:17:41 EST


On Thu, Feb 15, 2018 at 04:43:53PM -0700, Jerry Hoemann wrote:
> Minor white space changes and some name clean up.
>
> Signed-off-by: Jerry Hoemann <jerry.hoemann@xxxxxxx>
> ---
> drivers/watchdog/hpwdt.c | 49 +++++++++++++++++++++++-------------------------
> 1 file changed, 23 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
> index 07810caabf74..d5989acf3e37 100644
> --- a/drivers/watchdog/hpwdt.c
> +++ b/drivers/watchdog/hpwdt.c
> @@ -1,11 +1,9 @@
> /*
> * HPE WatchDog Driver
> - * based on
> *
> - * SoftDog 0.05: A Software Watchdog Device
> - *
> - * (c) Copyright 2015 Hewlett Packard Enterprise Development LP
> + * (c) Copyright 2018 Hewlett Packard Enterprise Development LP
> * Thomas Mingarelli <thomas.mingarelli@xxxxxxx>
> + * Jerry Hoemann <jerry.hoemann@xxxxxxx>
> *
> * This program is free software; you can redistribute it and/or
> * modify it under the terms of the GNU General Public License
> @@ -53,7 +51,7 @@ static unsigned long __iomem *hpwdt_timer_con;
> static const struct pci_device_id hpwdt_devices[] = {
> { PCI_DEVICE(PCI_VENDOR_ID_COMPAQ, 0xB203) }, /* iLO2 */
> { PCI_DEVICE(PCI_VENDOR_ID_HP, 0x3306) }, /* iLO3 */
> - {0}, /* terminate list */
> + {0}, /* terminate list */
> };
> MODULE_DEVICE_TABLE(pci, hpwdt_devices);
>
> @@ -102,7 +100,7 @@ static int hpwdt_time_left(void)
> return TICKS_TO_SECS(ioread16(hpwdt_timer_reg));
> }
>
> -#ifdef CONFIG_HPWDT_NMI_DECODING
> +#ifdef CONFIG_HPWDT_NMI_DECODING /* { */
> static int hpwdt_my_nmi(void)
> {
> return ioread8(hpwdt_nmistat) & 0x6;
> @@ -133,7 +131,7 @@ static int hpwdt_pretimeout(unsigned int ulReason, struct pt_regs *regs)
>
> return NMI_HANDLED;
> }
> -#endif /* CONFIG_HPWDT_NMI_DECODING */
> +#endif /* } */

I disagree with those changes. While I don't object to adding the '{'
per se, I find it very useful to have the 'CONFIG_HPWDT_NMI_DECODING'
with an endif to be able to associate it with the matching #ifdef.

Deferring to Wim.

Guenter

>
> /*
> * /dev/watchdog handling
> @@ -198,11 +196,11 @@ static ssize_t hpwdt_write(struct file *file, const char __user *data,
> return len;
> }
>
> -static const struct watchdog_info ident = {
> - .options = WDIOF_SETTIMEOUT |
> - WDIOF_KEEPALIVEPING |
> - WDIOF_MAGICCLOSE,
> - .identity = "HPE iLO2+ HW Watchdog Timer",
> +static const struct watchdog_info hpwdt_info = {
> + .options = WDIOF_SETTIMEOUT |
> + WDIOF_KEEPALIVEPING |
> + WDIOF_MAGICCLOSE,
> + .identity = "HPE iLO2+ HW Watchdog Timer",
> };
>
> static long hpwdt_ioctl(struct file *file, unsigned int cmd,
> @@ -216,7 +214,7 @@ static long hpwdt_ioctl(struct file *file, unsigned int cmd,
> switch (cmd) {
> case WDIOC_GETSUPPORT:
> ret = 0;
> - if (copy_to_user(argp, &ident, sizeof(ident)))
> + if (copy_to_user(argp, &hpwdt_info, sizeof(hpwdt_info)))
> ret = -EFAULT;
> break;
>
> @@ -313,7 +311,7 @@ static int hpwdt_init_nmi_decoding(struct pci_dev *dev)
> return 0;
>
> error2:
> - unregister_nmi_handler(NMI_SERR, "hpwdt");
> + unregister_nmi_handler(NMI_SERR, "hpwdt");
> error1:
> unregister_nmi_handler(NMI_UNKNOWN, "hpwdt");
> error:
> @@ -327,15 +325,14 @@ static int hpwdt_init_nmi_decoding(struct pci_dev *dev)
>
> static void hpwdt_exit_nmi_decoding(void)
> {
> -#ifdef CONFIG_HPWDT_NMI_DECODING
> - unregister_nmi_handler(NMI_UNKNOWN, "hpwdt");
> - unregister_nmi_handler(NMI_SERR, "hpwdt");
> +#ifdef CONFIG_HPWDT_NMI_DECODING /* { */
> + unregister_nmi_handler(NMI_UNKNOWN, "hpwdt");
> + unregister_nmi_handler(NMI_SERR, "hpwdt");
> unregister_nmi_handler(NMI_IO_CHECK, "hpwdt");
> -#endif
> +#endif /* } */
> }
>
> -static int hpwdt_init_one(struct pci_dev *dev,
> - const struct pci_device_id *ent)
> +static int hpwdt_probe(struct pci_dev *dev, const struct pci_device_id *ent)
> {
> int retval;
>
> @@ -422,10 +419,10 @@ static void hpwdt_exit(struct pci_dev *dev)
> }
>
> static struct pci_driver hpwdt_driver = {
> - .name = "hpwdt",
> - .id_table = hpwdt_devices,
> - .probe = hpwdt_init_one,
> - .remove = hpwdt_exit,
> + .name = "hpwdt",
> + .id_table = hpwdt_devices,
> + .probe = hpwdt_probe,
> + .remove = hpwdt_exit,
> };
>
> MODULE_AUTHOR("Tom Mingarelli");
> @@ -440,9 +437,9 @@ module_param(nowayout, bool, 0);
> MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
> __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
>
> -#ifdef CONFIG_HPWDT_NMI_DECODING
> +#ifdef CONFIG_HPWDT_NMI_DECODING /* { */
> module_param(allow_kdump, int, 0);
> MODULE_PARM_DESC(allow_kdump, "Start a kernel dump after NMI occurs");
> -#endif /* !CONFIG_HPWDT_NMI_DECODING */
> +#endif /* } */
>
> module_pci_driver(hpwdt_driver);