linux-kernel - Re: [PATCH 0215/1285] Replace numeric parameter like 0444 with macro

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Date:	Thu, 4 Aug 2016 17:00:45 -0700
From:	Sinclair Yeh <syeh@...are.com>
To:	Baole Ni <baolex.ni@...el.com>
CC:	<linux-graphics-maintainer@...are.com>, <thellstrom@...are.com>,
	<airlied@...ux.ie>, <kgene@...nel.org>, <k.kozlowski@...sung.com>,
	<dougthompson@...ssion.com>, <bp@...en8.de>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
	<chuansheng.liu@...el.com>, <alexander.deucher@....com>,
	<ville.syrjala@...ux.intel.com>
Subject: Re: [PATCH 0215/1285] Replace numeric parameter like 0444 with macro

Reviewed-by: Sinclair Yeh <syeh@...are.com>

On Tue, Aug 02, 2016 at 06:50:25PM +0800, Baole Ni wrote:
> I find that the developers often just specified the numeric value
> when calling a macro which is defined with a parameter for access permission.
> As we know, these numeric value for access permission have had the corresponding macro,
> and that using macro can improve the robustness and readability of the code,
> thus, I suggest replacing the numeric parameter with the macro.
> 
> Signed-off-by: Chuansheng Liu <chuansheng.liu@...el.com>
> Signed-off-by: Baole Ni <baolex.ni@...el.com>
> ---
>  drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> index 9fcd820..b8e5d3d 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> @@ -240,15 +240,15 @@ static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
>  			      void *ptr);
>  
>  MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev");
> -module_param_named(enable_fbdev, enable_fbdev, int, 0600);
> +module_param_named(enable_fbdev, enable_fbdev, int, S_IRUSR | S_IWUSR);
>  MODULE_PARM_DESC(force_dma_api, "Force using the DMA API for TTM pages");
> -module_param_named(force_dma_api, vmw_force_iommu, int, 0600);
> +module_param_named(force_dma_api, vmw_force_iommu, int, S_IRUSR | S_IWUSR);
>  MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages");
> -module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600);
> +module_param_named(restrict_iommu, vmw_restrict_iommu, int, S_IRUSR | S_IWUSR);
>  MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages");
> -module_param_named(force_coherent, vmw_force_coherent, int, 0600);
> +module_param_named(force_coherent, vmw_force_coherent, int, S_IRUSR | S_IWUSR);
>  MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU");
> -module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600);
> +module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, S_IRUSR | S_IWUSR);
>  
>  
>  static void vmw_print_capabilities(uint32_t capabilities)
> -- 
> 2.9.2
>