Re: [PATCH v2 01/28] soc: fsl: cpm1: tsa: Fix __iomem addresses declaration

[Christophe Leroy]

Le 26/07/2023 à 17:01, Herve Codina a écrit :
> Running sparse (make C=1) on tsa.c raises a lot of warning such as:
>    --- 8< ---
>    warning: incorrect type in assignment (different address spaces)
>       expected void *[noderef] si_regs
>       got void [noderef] __iomem *
>    --- 8< ---
> 
> Indeed, some variable were declared 'type *__iomem var' instead of
> 'type __iomem *var'.
> 
> Use the correct declaration to remove these warnings.
> 
> Fixes: 1d4ba0b81c1c ("soc: fsl: cpm1: Add support for TSA")
> Signed-off-by: Herve Codina <herve.codina@xxxxxxxxxxx>

Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>

> ---
>   drivers/soc/fsl/qe/tsa.c | 22 +++++++++++-----------
>   1 file changed, 11 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/soc/fsl/qe/tsa.c b/drivers/soc/fsl/qe/tsa.c
> index 3646153117b3..e0527b9efd05 100644
> --- a/drivers/soc/fsl/qe/tsa.c
> +++ b/drivers/soc/fsl/qe/tsa.c
> @@ -98,9 +98,9 @@
>   #define TSA_SIRP	0x10
>   
>   struct tsa_entries_area {
> -	void *__iomem entries_start;
> -	void *__iomem entries_next;
> -	void *__iomem last_entry;
> +	void __iomem *entries_start;
> +	void __iomem *entries_next;
> +	void __iomem *last_entry;
>   };
>   
>   struct tsa_tdm {
> @@ -117,8 +117,8 @@ struct tsa_tdm {
>   
>   struct tsa {
>   	struct device *dev;
> -	void *__iomem si_regs;
> -	void *__iomem si_ram;
> +	void __iomem *si_regs;
> +	void __iomem *si_ram;
>   	resource_size_t si_ram_sz;
>   	spinlock_t	lock;
>   	int tdms; /* TSA_TDMx ORed */
> @@ -135,27 +135,27 @@ static inline struct tsa *tsa_serial_get_tsa(struct tsa_serial *tsa_serial)
>   	return container_of(tsa_serial, struct tsa, serials[tsa_serial->id]);
>   }
>   
> -static inline void tsa_write32(void *__iomem addr, u32 val)
> +static inline void tsa_write32(void __iomem *addr, u32 val)
>   {
>   	iowrite32be(val, addr);
>   }
>   
> -static inline void tsa_write8(void *__iomem addr, u32 val)
> +static inline void tsa_write8(void __iomem *addr, u32 val)
>   {
>   	iowrite8(val, addr);
>   }
>   
> -static inline u32 tsa_read32(void *__iomem addr)
> +static inline u32 tsa_read32(void __iomem *addr)
>   {
>   	return ioread32be(addr);
>   }
>   
> -static inline void tsa_clrbits32(void *__iomem addr, u32 clr)
> +static inline void tsa_clrbits32(void __iomem *addr, u32 clr)
>   {
>   	tsa_write32(addr, tsa_read32(addr) & ~clr);
>   }
>   
> -static inline void tsa_clrsetbits32(void *__iomem addr, u32 clr, u32 set)
> +static inline void tsa_clrsetbits32(void __iomem *addr, u32 clr, u32 set)
>   {
>   	tsa_write32(addr, (tsa_read32(addr) & ~clr) | set);
>   }
> @@ -313,7 +313,7 @@ static u32 tsa_serial_id2csel(struct tsa *tsa, u32 serial_id)
>   static int tsa_add_entry(struct tsa *tsa, struct tsa_entries_area *area,
>   			 u32 count, u32 serial_id)
>   {
> -	void *__iomem addr;
> +	void __iomem *addr;
>   	u32 left;
>   	u32 val;
>   	u32 cnt;