Re: [PATCH] scsi: message: fusion: clean up clang warning on extraneous parentheses

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On Sun, Sep 30, 2018 at 11:31:23PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> 
> There are extraneous parantheses that are causing clang to produce a
> warning so remove these. Also replace pointer comparison with NULL
> with the !ptr idiom.
> 
> Clean up clang warnings:
> equality comparison with extraneous parentheses [-Wparentheses-equality]
> 
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
>  drivers/message/fusion/mptbase.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
> index dc1e43a02599..ba551d8dfba4 100644
> --- a/drivers/message/fusion/mptbase.c
> +++ b/drivers/message/fusion/mptbase.c
> @@ -335,11 +335,11 @@ static int mpt_remove_dead_ioc_func(void *arg)
>  	MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
>  	struct pci_dev *pdev;
>  
> -	if ((ioc == NULL))
> +	if (!ioc)
>  		return -1;
>  
>  	pdev = ioc->pcidev;
> -	if ((pdev == NULL))
> +	if (!pdev)
>  		return -1;
>  
>  	pci_stop_and_remove_bus_device_locked(pdev);
> -- 
> 2.17.1
> 

Hi Colin,

I already sent a patch that was picked up by Martin a few days ago: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?id=90ded4e2005b1195a5e781009be991e1cd049c10

I've been sending several warning fixes for Clang over the past few
weeks that have been documented on GitHub. You may consider checking
them out since I have started to see some overlap.

Link: https://github.com/ClangBuiltLinux/linux/issues

Cheers!
Nathan



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