linux-kernel - Re: [RFC PATCH 24/35] sh: Change PCIBIOS

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Date:   Mon, 20 Jul 2020 17:41:28 -0400
From:   Rich Felker <dalias@...c.org>
To:     "Saheed O. Bolarinwa" <refactormyself@...il.com>
Cc:     helgaas@...nel.org, Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        bjorn@...gaas.com, skhan@...uxfoundation.org,
        linux-pci@...r.kernel.org,
        linux-kernel-mentees@...ts.linuxfoundation.org,
        linux-kernel@...r.kernel.org, linux-sh@...r.kernel.org
Subject: Re: [RFC PATCH 24/35] sh: Change PCIBIOS_SUCCESSFUL to 0

On Mon, Jul 13, 2020 at 02:22:36PM +0200, Saheed O. Bolarinwa wrote:
> In reference to the PCI spec (Chapter 2), PCIBIOS* is an x86 concept.
> Their scope should be limited within arch/x86.
> 
> Change all PCIBIOS_SUCCESSFUL to 0
> 
> Signed-off-by: "Saheed O. Bolarinwa" <refactormyself@...il.com>
> ---
>  arch/sh/drivers/pci/common.c        | 2 +-
>  arch/sh/drivers/pci/ops-dreamcast.c | 4 ++--
>  arch/sh/drivers/pci/ops-sh4.c       | 4 ++--
>  arch/sh/drivers/pci/ops-sh7786.c    | 8 ++++----
>  arch/sh/drivers/pci/pci.c           | 2 +-
>  5 files changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/arch/sh/drivers/pci/common.c b/arch/sh/drivers/pci/common.c
> index fe163ecd0719..ee27cdfd3e68 100644
> --- a/arch/sh/drivers/pci/common.c
> +++ b/arch/sh/drivers/pci/common.c
> @@ -61,7 +61,7 @@ int __init pci_is_66mhz_capable(struct pci_channel *hose,
>  			continue;
>  		if (early_read_config_word(hose, top_bus, current_bus,
>  					   pci_devfn, PCI_VENDOR_ID, &vid) !=
> -		    PCIBIOS_SUCCESSFUL)
> +		    0)
>  			continue;
>  		if (vid == 0xffff)
>  			continue;
> diff --git a/arch/sh/drivers/pci/ops-dreamcast.c b/arch/sh/drivers/pci/ops-dreamcast.c
> index 517a8a9702f6..431cd006951f 100644
> --- a/arch/sh/drivers/pci/ops-dreamcast.c
> +++ b/arch/sh/drivers/pci/ops-dreamcast.c
> @@ -56,7 +56,7 @@ static int gapspci_read(struct pci_bus *bus, unsigned int devfn, int where, int
>  	case 4: *val = inl(GAPSPCI_BBA_CONFIG+where); break;
>  	}
>  
> -        return PCIBIOS_SUCCESSFUL;
> +	return 0;
>  }
>  
>  static int gapspci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val)
> @@ -70,7 +70,7 @@ static int gapspci_write(struct pci_bus *bus, unsigned int devfn, int where, int
>  	case 4: outl((u32)val, GAPSPCI_BBA_CONFIG+where); break;
>  	}
>  
> -        return PCIBIOS_SUCCESSFUL;
> +	return 0;
>  }
>  
>  struct pci_ops gapspci_pci_ops = {
> diff --git a/arch/sh/drivers/pci/ops-sh4.c b/arch/sh/drivers/pci/ops-sh4.c
> index a205be3bfc4a..4d757e5f38c6 100644
> --- a/arch/sh/drivers/pci/ops-sh4.c
> +++ b/arch/sh/drivers/pci/ops-sh4.c
> @@ -49,7 +49,7 @@ static int sh4_pci_read(struct pci_bus *bus, unsigned int devfn,
>  		return PCIBIOS_FUNC_NOT_SUPPORTED;
>  	}
>  
> -	return PCIBIOS_SUCCESSFUL;
> +	return 0;
>  }
>  
>  /*
> @@ -90,7 +90,7 @@ static int sh4_pci_write(struct pci_bus *bus, unsigned int devfn,
>  
>  	pci_write_reg(chan, data, SH4_PCIPDR);
>  
> -	return PCIBIOS_SUCCESSFUL;
> +	return 0;
>  }
>  
>  struct pci_ops sh4_pci_ops = {
> diff --git a/arch/sh/drivers/pci/ops-sh7786.c b/arch/sh/drivers/pci/ops-sh7786.c
> index a10f9f4ebd7f..7c329e467360 100644
> --- a/arch/sh/drivers/pci/ops-sh7786.c
> +++ b/arch/sh/drivers/pci/ops-sh7786.c
> @@ -52,7 +52,7 @@ static int sh7786_pcie_config_access(unsigned char access_type,
>  			else
>  				pci_write_reg(chan, *data, PCI_REG(reg));
>  
> -			return PCIBIOS_SUCCESSFUL;
> +			return 0;
>  		} else if (dev > 1)
>  			return PCIBIOS_DEVICE_NOT_FOUND;
>  	}
> @@ -83,7 +83,7 @@ static int sh7786_pcie_config_access(unsigned char access_type,
>  	/* Disable the configuration access */
>  	pci_write_reg(chan, 0, SH4A_PCIEPCTLR);
>  
> -	return PCIBIOS_SUCCESSFUL;
> +	return 0;
>  }
>  
>  static int sh7786_pcie_read(struct pci_bus *bus, unsigned int devfn,
> @@ -101,7 +101,7 @@ static int sh7786_pcie_read(struct pci_bus *bus, unsigned int devfn,
>  	raw_spin_lock_irqsave(&pci_config_lock, flags);
>  	ret = sh7786_pcie_config_access(PCI_ACCESS_READ, bus,
>  					devfn, where, &data);
> -	if (ret != PCIBIOS_SUCCESSFUL) {
> +	if (ret != 0) {
>  		*val = 0xffffffff;
>  		goto out;
>  	}
> @@ -137,7 +137,7 @@ static int sh7786_pcie_write(struct pci_bus *bus, unsigned int devfn,
>  	raw_spin_lock_irqsave(&pci_config_lock, flags);
>  	ret = sh7786_pcie_config_access(PCI_ACCESS_READ, bus,
>  					devfn, where, &data);
> -	if (ret != PCIBIOS_SUCCESSFUL)
> +	if (ret != 0)
>  		goto out;
>  
>  	dev_dbg(&bus->dev, "pcie-config-write: bus=%3d devfn=0x%04x "
> diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
> index c7784e156964..77130f035fdd 100644
> --- a/arch/sh/drivers/pci/pci.c
> +++ b/arch/sh/drivers/pci/pci.c
> @@ -204,7 +204,7 @@ pcibios_bus_report_status_early(struct pci_channel *hose,
>  			continue;
>  		ret = early_read_config_word(hose, top_bus, current_bus,
>  					     pci_devfn, PCI_STATUS, &status);
> -		if (ret != PCIBIOS_SUCCESSFUL)
> +		if (ret != 0)
>  			continue;
>  		if (status == 0xffff)
>  			continue;
> -- 
> 2.18.2

Acked-by: Rich Felker <dalias@...c.org>

(for both this and the following one in the series)