Re: ✗ Fi.CI.CHECKPATCH: warning for IRQ initialization debloat and conversion to uncore

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Em ter, 2019-04-09 às 00:44 +0000, Patchwork escreveu:
> == Series Details ==
> 
> Series: IRQ initialization debloat and conversion to uncore
> URL   : https://patchwork.freedesktop.org/series/59202/
> State : warning
> 
> == Summary ==
> 
> $ dim checkpatch origin/drm-tip
> 7f73d1fe31bb drm/i915: refactor the IRQ init/reset macros
> -:114: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'which' - possible side-effects?
> #114: FILE: drivers/gpu/drm/i915/i915_irq.c:169:
> +#define GEN8_IRQ_RESET_NDX(type, which) \
> +	gen3_irq_reset(dev_priv, GEN8_##type##_IMR(which), \
> +		       GEN8_##type##_IIR(which), GEN8_##type##_IER(which))
> 
> -:172: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'which' - possible side-effects?
> #172: FILE: drivers/gpu/drm/i915/i915_irq.c:236:
> +#define GEN8_IRQ_INIT_NDX(type, which, imr_val, ier_val) \
> +	gen3_irq_init(dev_priv, GEN8_##type##_IMR(which), \
> +		      GEN8_##type##_IIR(which), GEN8_##type##_IER(which), \
> +		      imr_val, ier_val)
> 
> total: 0 errors, 0 warnings, 2 checks, 135 lines checked
> 82160241d80f drm/i915: convert the IRQ initialization functions to intel_uncore
> 8c1c76059a41 drm/i915: fully convert the IRQ initialization macros to intel_uncore
> -:24: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'which' - possible side-effects?
> #24: FILE: drivers/gpu/drm/i915/i915_irq.c:169:
> +#define GEN8_IRQ_RESET_NDX(uncore, type, which) \
> +	gen3_irq_reset((uncore), GEN8_##type##_IMR(which), \
>  		       GEN8_##type##_IIR(which), GEN8_##type##_IER(which))
> 
> -:46: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'which' - possible side-effects?
> #46: FILE: drivers/gpu/drm/i915/i915_irq.c:236:
> +#define GEN8_IRQ_INIT_NDX(uncore, type, which, imr_val, ier_val) \
> +	gen3_irq_init((uncore), GEN8_##type##_IMR(which), \
>  		      GEN8_##type##_IIR(which), GEN8_##type##_IER(which), \
>  		      imr_val, ier_val)

The whiches are not really a regression, but OK we can deal with them
to make the robots happy.

> 
> -:401: ERROR:SPACING: space prohibited before that close parenthesis ')'
> #401: FILE: drivers/gpu/drm/i915/i915_irq.c:4228:
> +	GEN2_IRQ_RESET(uncore, );
> 
> -:416: ERROR:SPACING: space prohibited before that ',' (ctx:WxW)
> #416: FILE: drivers/gpu/drm/i915/i915_irq.c:4252:
> +	GEN2_IRQ_INIT(uncore, , dev_priv->irq_mask, enable_mask);
>  	                      ^
> 
> -:433: ERROR:SPACING: space prohibited before that close parenthesis ')'
> #433: FILE: drivers/gpu/drm/i915/i915_irq.c:4397:
> +	GEN3_IRQ_RESET(uncore, );
> 
> -:448: ERROR:SPACING: space prohibited before that ',' (ctx:WxW)
> #448: FILE: drivers/gpu/drm/i915/i915_irq.c:4430:
> +	GEN3_IRQ_INIT(uncore, , dev_priv->irq_mask, enable_mask);
>  	                      ^
> 
> -:464: ERROR:SPACING: space prohibited before that close parenthesis ')'
> #464: FILE: drivers/gpu/drm/i915/i915_irq.c:4508:
> +	GEN3_IRQ_RESET(uncore, );
> 
> -:479: ERROR:SPACING: space prohibited before that ',' (ctx:WxW)
> #479: FILE: drivers/gpu/drm/i915/i915_irq.c:4552:
> +	GEN3_IRQ_INIT(uncore, , dev_priv->irq_mask, enable_mask);

For these ones I really think the spaces help. I would love to read
some opinions. Perhaps some comment like /* paste token here */ would
help make the code more readable and could help silence checkpatch.
Opinions?

>  	                      ^
> 
> total: 6 errors, 0 warnings, 2 checks, 432 lines checked
> 
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