2017-03-14 19:09:03

by Stephen Boyd

[permalink] [raw]
Subject: [PATCH] PCI: aardvark: Remove msi-controller dt node probing

This code assigns variables that are never used. Remove them.

Reported-by: Srinivas Kandagatla <[email protected]>
Cc: Thomas Petazzoni <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
---
drivers/pci/host/pci-aardvark.c | 8 --------
1 file changed, 8 deletions(-)

diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
index 4fce494271cc..56e1aead65fc 100644
--- a/drivers/pci/host/pci-aardvark.c
+++ b/drivers/pci/host/pci-aardvark.c
@@ -917,8 +917,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
struct advk_pcie *pcie;
struct resource *res;
struct pci_bus *bus, *child;
- struct msi_controller *msi;
- struct device_node *msi_node;
int ret, irq;

pcie = devm_kzalloc(dev, sizeof(struct advk_pcie), GFP_KERNEL);
@@ -962,12 +960,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
return ret;
}

- msi_node = of_parse_phandle(dev->of_node, "msi-parent", 0);
- if (msi_node)
- msi = of_pci_find_msi_chip_by_node(msi_node);
- else
- msi = NULL;
-
bus = pci_scan_root_bus_msi(dev, 0, &advk_pcie_ops,
pcie, &pcie->resources, &pcie->msi);
if (!bus) {
--
2.10.0.297.gf6727b0


2017-03-14 19:30:11

by Bjorn Helgaas

[permalink] [raw]
Subject: Re: [PATCH] PCI: aardvark: Remove msi-controller dt node probing

On Tue, Mar 14, 2017 at 12:08:51PM -0700, Stephen Boyd wrote:
> This code assigns variables that are never used. Remove them.
>
> Reported-by: Srinivas Kandagatla <[email protected]>
> Cc: Thomas Petazzoni <[email protected]>
> Signed-off-by: Stephen Boyd <[email protected]>

I love removing unused code! Applied to pci/host-aardvark for v4.12,
thanks!

> ---
> drivers/pci/host/pci-aardvark.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
> index 4fce494271cc..56e1aead65fc 100644
> --- a/drivers/pci/host/pci-aardvark.c
> +++ b/drivers/pci/host/pci-aardvark.c
> @@ -917,8 +917,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
> struct advk_pcie *pcie;
> struct resource *res;
> struct pci_bus *bus, *child;
> - struct msi_controller *msi;
> - struct device_node *msi_node;
> int ret, irq;
>
> pcie = devm_kzalloc(dev, sizeof(struct advk_pcie), GFP_KERNEL);
> @@ -962,12 +960,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
> return ret;
> }
>
> - msi_node = of_parse_phandle(dev->of_node, "msi-parent", 0);
> - if (msi_node)
> - msi = of_pci_find_msi_chip_by_node(msi_node);
> - else
> - msi = NULL;
> -
> bus = pci_scan_root_bus_msi(dev, 0, &advk_pcie_ops,
> pcie, &pcie->resources, &pcie->msi);
> if (!bus) {
> --
> 2.10.0.297.gf6727b0
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

2017-03-14 20:18:01

by Bjorn Helgaas

[permalink] [raw]
Subject: Re: [PATCH] PCI: aardvark: Remove msi-controller dt node probing

On Tue, Mar 14, 2017 at 02:30:05PM -0500, Bjorn Helgaas wrote:
> On Tue, Mar 14, 2017 at 12:08:51PM -0700, Stephen Boyd wrote:
> > This code assigns variables that are never used. Remove them.
> >
> > Reported-by: Srinivas Kandagatla <[email protected]>
> > Cc: Thomas Petazzoni <[email protected]>
> > Signed-off-by: Stephen Boyd <[email protected]>
>
> I love removing unused code! Applied to pci/host-aardvark for v4.12,
> thanks!

Actually, I applied Thomas' series [1], which does some additional
cleanup and also removes this same code. So I'll just drop this one
since it's redundant. Thanks again and sorry for my confusion.

[1] https://patchwork.ozlabs.org/patch/733572/

> > ---
> > drivers/pci/host/pci-aardvark.c | 8 --------
> > 1 file changed, 8 deletions(-)
> >
> > diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
> > index 4fce494271cc..56e1aead65fc 100644
> > --- a/drivers/pci/host/pci-aardvark.c
> > +++ b/drivers/pci/host/pci-aardvark.c
> > @@ -917,8 +917,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
> > struct advk_pcie *pcie;
> > struct resource *res;
> > struct pci_bus *bus, *child;
> > - struct msi_controller *msi;
> > - struct device_node *msi_node;
> > int ret, irq;
> >
> > pcie = devm_kzalloc(dev, sizeof(struct advk_pcie), GFP_KERNEL);
> > @@ -962,12 +960,6 @@ static int advk_pcie_probe(struct platform_device *pdev)
> > return ret;
> > }
> >
> > - msi_node = of_parse_phandle(dev->of_node, "msi-parent", 0);
> > - if (msi_node)
> > - msi = of_pci_find_msi_chip_by_node(msi_node);
> > - else
> > - msi = NULL;
> > -
> > bus = pci_scan_root_bus_msi(dev, 0, &advk_pcie_ops,
> > pcie, &pcie->resources, &pcie->msi);
> > if (!bus) {
> > --
> > 2.10.0.297.gf6727b0
> >
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > [email protected]
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
> _______________________________________________
> linux-arm-kernel mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

2017-03-14 20:27:18

by Thomas Petazzoni

[permalink] [raw]
Subject: Re: [PATCH] PCI: aardvark: Remove msi-controller dt node probing

Hello,

On Tue, 14 Mar 2017 14:30:05 -0500, Bjorn Helgaas wrote:
> On Tue, Mar 14, 2017 at 12:08:51PM -0700, Stephen Boyd wrote:
> > This code assigns variables that are never used. Remove them.
> >
> > Reported-by: Srinivas Kandagatla <[email protected]>
> > Cc: Thomas Petazzoni <[email protected]>
> > Signed-off-by: Stephen Boyd <[email protected]>
>
> I love removing unused code! Applied to pci/host-aardvark for v4.12,
> thanks!

Why? I have already sent a patch that also does this (and much more!) a
number of times already, and it has never been applied. See:

[PATCH v3 1/3] pci: pci-aardvark: move to MSI handling using generic MSI support

v1 on September 1st, 2016
v2 on December 23th, 2016
v3 on February 28th, 2017

Best regards,

Thomas

--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com