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Subject: Re: [PATCH v2 09/23] soc: fsl: qe: move qe_ic_cascade_* functions to
 qe_ic.c
To:     Rasmus Villemoes <linux@rasmusvillemoes.dk>,
        Qiang Zhao <qiang.zhao@nxp.com>, Li Yang <leoyang.li@nxp.com>
Cc:     linuxppc-dev@lists.ozlabs.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Scott Wood <oss@buserror.net>,
        Valentin Longchamp <valentin.longchamp@keymile.com>
References: <20191018125234.21825-1-linux@rasmusvillemoes.dk>
 <20191025124058.22580-1-linux@rasmusvillemoes.dk>
 <20191025124058.22580-10-linux@rasmusvillemoes.dk>
From:   Christophe Leroy <christophe.leroy@c-s.fr>
Message-ID: <b01b12fc-88a5-8bc9-5a48-e35ad75b49d9@c-s.fr>
Date:   Wed, 30 Oct 2019 11:45:31 +0100
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Le 25/10/2019 à 14:40, Rasmus Villemoes a écrit :
> These functions are only ever called through a function pointer, and
> therefore it makes no sense for them to be "static inline" - gcc has
> no choice but to emit a copy in each translation unit that takes the
> address of one of these (currently various platform code under
> arch/powerpc/). So move them into qe_ic.c and leave ordinary extern
> declarations in the header file.

What is the point in moving fonctions that you will drop in the next 
patch (qe_ic_cascade_low_ipic() and qe_ic_cascade_high_ipic())
Only move the ones that will remain.

Christophe


> 
> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
> ---
>   drivers/soc/fsl/qe/qe_ic.c | 58 +++++++++++++++++++++++++++++++++++
>   include/soc/fsl/qe/qe_ic.h | 62 +++-----------------------------------
>   2 files changed, 63 insertions(+), 57 deletions(-)
> 
> diff --git a/drivers/soc/fsl/qe/qe_ic.c b/drivers/soc/fsl/qe/qe_ic.c
> index 7b1870d2866a..a847b2672e90 100644
> --- a/drivers/soc/fsl/qe/qe_ic.c
> +++ b/drivers/soc/fsl/qe/qe_ic.c
> @@ -402,6 +402,64 @@ unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic)
>   	return irq_linear_revmap(qe_ic->irqhost, irq);
>   }
>   
> +void qe_ic_cascade_low_ipic(struct irq_desc *desc)
> +{
> +	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> +	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
> +
> +	if (cascade_irq != NO_IRQ)
> +		generic_handle_irq(cascade_irq);
> +}
> +
> +void qe_ic_cascade_high_ipic(struct irq_desc *desc)
> +{
> +	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> +	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
> +
> +	if (cascade_irq != NO_IRQ)
> +		generic_handle_irq(cascade_irq);
> +}
> +
> +void qe_ic_cascade_low_mpic(struct irq_desc *desc)
> +{
> +	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> +	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
> +	struct irq_chip *chip = irq_desc_get_chip(desc);
> +
> +	if (cascade_irq != NO_IRQ)
> +		generic_handle_irq(cascade_irq);
> +
> +	chip->irq_eoi(&desc->irq_data);
> +}
> +
> +void qe_ic_cascade_high_mpic(struct irq_desc *desc)
> +{
> +	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> +	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
> +	struct irq_chip *chip = irq_desc_get_chip(desc);
> +
> +	if (cascade_irq != NO_IRQ)
> +		generic_handle_irq(cascade_irq);
> +
> +	chip->irq_eoi(&desc->irq_data);
> +}
> +
> +void qe_ic_cascade_muxed_mpic(struct irq_desc *desc)
> +{
> +	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> +	unsigned int cascade_irq;
> +	struct irq_chip *chip = irq_desc_get_chip(desc);
> +
> +	cascade_irq = qe_ic_get_high_irq(qe_ic);
> +	if (cascade_irq == NO_IRQ)
> +		cascade_irq = qe_ic_get_low_irq(qe_ic);
> +
> +	if (cascade_irq != NO_IRQ)
> +		generic_handle_irq(cascade_irq);
> +
> +	chip->irq_eoi(&desc->irq_data);
> +}
> +
>   void __init qe_ic_init(struct device_node *node, unsigned int flags,
>   		       void (*low_handler)(struct irq_desc *desc),
>   		       void (*high_handler)(struct irq_desc *desc))
> diff --git a/include/soc/fsl/qe/qe_ic.h b/include/soc/fsl/qe/qe_ic.h
> index 714a9b890d8d..f3492eb13052 100644
> --- a/include/soc/fsl/qe/qe_ic.h
> +++ b/include/soc/fsl/qe/qe_ic.h
> @@ -74,62 +74,10 @@ void qe_ic_set_highest_priority(unsigned int virq, int high);
>   int qe_ic_set_priority(unsigned int virq, unsigned int priority);
>   int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high);
>   
> -static inline void qe_ic_cascade_low_ipic(struct irq_desc *desc)
> -{
> -	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> -	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
> -
> -	if (cascade_irq != NO_IRQ)
> -		generic_handle_irq(cascade_irq);
> -}
> -
> -static inline void qe_ic_cascade_high_ipic(struct irq_desc *desc)
> -{
> -	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> -	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
> -
> -	if (cascade_irq != NO_IRQ)
> -		generic_handle_irq(cascade_irq);
> -}
> -
> -static inline void qe_ic_cascade_low_mpic(struct irq_desc *desc)
> -{
> -	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> -	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
> -	struct irq_chip *chip = irq_desc_get_chip(desc);
> -
> -	if (cascade_irq != NO_IRQ)
> -		generic_handle_irq(cascade_irq);
> -
> -	chip->irq_eoi(&desc->irq_data);
> -}
> -
> -static inline void qe_ic_cascade_high_mpic(struct irq_desc *desc)
> -{
> -	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> -	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
> -	struct irq_chip *chip = irq_desc_get_chip(desc);
> -
> -	if (cascade_irq != NO_IRQ)
> -		generic_handle_irq(cascade_irq);
> -
> -	chip->irq_eoi(&desc->irq_data);
> -}
> -
> -static inline void qe_ic_cascade_muxed_mpic(struct irq_desc *desc)
> -{
> -	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
> -	unsigned int cascade_irq;
> -	struct irq_chip *chip = irq_desc_get_chip(desc);
> -
> -	cascade_irq = qe_ic_get_high_irq(qe_ic);
> -	if (cascade_irq == NO_IRQ)
> -		cascade_irq = qe_ic_get_low_irq(qe_ic);
> -
> -	if (cascade_irq != NO_IRQ)
> -		generic_handle_irq(cascade_irq);
> -
> -	chip->irq_eoi(&desc->irq_data);
> -}
> +void qe_ic_cascade_low_ipic(struct irq_desc *desc);
> +void qe_ic_cascade_high_ipic(struct irq_desc *desc);
> +void qe_ic_cascade_low_mpic(struct irq_desc *desc);
> +void qe_ic_cascade_high_mpic(struct irq_desc *desc);
> +void qe_ic_cascade_muxed_mpic(struct irq_desc *desc);
>   
>   #endif /* _ASM_POWERPC_QE_IC_H */
>