From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Marek Vasut <marek.vasut@gmail.com>
Cc: linux-pci <linux-pci@vger.kernel.org>,
Marek Vasut <marek.vasut+renesas@gmail.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Phil Edworthy <phil.edworthy@renesas.com>,
Simon Horman <horms+renesas@verge.net.au>,
Wolfram Sang <wsa@the-dreams.de>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH 1/3] PCI: rcar: Replace unsigned long with u32 for register values
Date: Mon, 18 Mar 2019 09:47:13 +0100 [thread overview]
Message-ID: <CAMuHMdW5+aKVFdQYF-xiO3JyoyNYDwOTQqF8BJgku1b7ZzD1Mw@mail.gmail.com> (raw)
In-Reply-To: <20190317000608.24881-1-marek.vasut@gmail.com>
Hi Marek,
On Sun, Mar 17, 2019 at 1:06 AM <marek.vasut@gmail.com> wrote:
> From: Marek Vasut <marek.vasut+renesas@gmail.com>
>
> Replace unsigned long with u32 type for variables holding
> register values, since the registers are 32bit. Note that
> rcar_pcie_msi_irq() still uses unsigned long because both
> find_first_bit() and __fls() require unsigned long as an
> argument.
>
> Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
> Cc: Geert Uytterhoeven <geert+renesas@glider.be>
> Cc: Phil Edworthy <phil.edworthy@renesas.com>
> Cc: Simon Horman <horms+renesas@verge.net.au>
> Cc: Wolfram Sang <wsa@the-dreams.de>
> Cc: linux-renesas-soc@vger.kernel.org
> To: linux-pci@vger.kernel.org
> ---
> drivers/pci/controller/pcie-rcar.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
> index 1408c8aa758b..857d88fd03d5 100644
> --- a/drivers/pci/controller/pcie-rcar.c
> +++ b/drivers/pci/controller/pcie-rcar.c
> @@ -169,7 +169,7 @@ enum {
>
> static void rcar_rmw32(struct rcar_pcie *pcie, int where, u32 mask, u32 data)
> {
> - int shift = 8 * (where & 3);
> + u32 shift = 8 * (where & 3);
shift is not a register value, so IMHO the original type is fine (the "int"
comes from the pci_ops API, BTW).
> u32 val = rcar_pci_read_reg(pcie, where & ~3);
>
> val &= ~(mask << shift);
> @@ -179,7 +179,7 @@ static void rcar_rmw32(struct rcar_pcie *pcie, int where, u32 mask, u32 data)
>
> static u32 rcar_read_conf(struct rcar_pcie *pcie, int where)
> {
> - int shift = 8 * (where & 3);
> + u32 shift = 8 * (where & 3);
Likewise
> u32 val = rcar_pci_read_reg(pcie, where & ~3);
>
> return val >> shift;
> @@ -190,7 +190,7 @@ static int rcar_pcie_config_access(struct rcar_pcie *pcie,
> unsigned char access_type, struct pci_bus *bus,
> unsigned int devfn, int where, u32 *data)
> {
> - int dev, func, reg, index;
> + u32 dev, func, reg, index;
reg is the only register value, isn't it?
>
> dev = PCI_SLOT(devfn);
> func = PCI_FUNC(devfn);
> @@ -508,7 +508,7 @@ static void phy_write_reg(struct rcar_pcie *pcie,
> unsigned int rate, unsigned int addr,
> unsigned int lane, unsigned int data)
> {
> - unsigned long phyaddr;
> + u32 phyaddr;
>
> phyaddr = WRITE_CMD |
> ((rate & 1) << RATE_POS) |
> @@ -1116,7 +1116,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> struct rcar_pcie *pcie;
> - unsigned int data;
> + u32 data;
> int err;
> int (*phy_init_fn)(struct rcar_pcie *);
> struct pci_host_bridge *bridge;
For the last two changes:
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2019-03-18 8:47 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-17 0:06 [PATCH 1/3] PCI: rcar: Replace unsigned long with u32 for register values marek.vasut
2019-03-17 0:06 ` [PATCH 2/3] PCI: rcar: Allow 64bit MSI addresses marek.vasut
2019-03-17 8:03 ` Sergei Shtylyov
2019-03-17 22:59 ` Marek Vasut
2019-03-17 9:12 ` Wolfram Sang
2019-03-17 23:37 ` Marek Vasut
2019-03-18 8:39 ` Geert Uytterhoeven
2019-03-18 9:30 ` Geert Uytterhoeven
2019-03-19 1:16 ` Marek Vasut
2019-03-18 8:35 ` Geert Uytterhoeven
2019-03-22 2:30 ` Marek Vasut
2019-03-17 0:06 ` [PATCH 3/3] PCI: rcar: Clean up debug messages marek.vasut
2019-03-17 9:15 ` Wolfram Sang
2019-03-18 8:20 ` Geert Uytterhoeven
2019-03-17 9:09 ` [PATCH 1/3] PCI: rcar: Replace unsigned long with u32 for register values Wolfram Sang
2019-03-17 22:58 ` Marek Vasut
2019-03-18 7:33 ` Wolfram Sang
2019-03-18 8:47 ` Geert Uytterhoeven [this message]
2019-03-21 3:25 ` Marek Vasut
2019-03-21 7:31 ` Geert Uytterhoeven
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