From: Frederic Barrat <fbarrat@linux.ibm.com>
To: Bjorn Helgaas <helgaas@kernel.org>, Andrew Donnellan <ajd@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>,
linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] cxl: Remove unnecessary cxl_pci_window_alignment()
Date: Tue, 6 Dec 2022 07:20:48 +0100 [thread overview]
Message-ID: <d33354c9-810e-0577-86b5-20552718f8a0@linux.ibm.com> (raw)
In-Reply-To: <20221205223231.1268085-1-helgaas@kernel.org>
On 05/12/2022 23:32, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@google.com>
>
> cxl_pci_window_alignment() is referenced only via the struct
> pci_controller_ops.window_alignment function pointer, and only in the
> powerpc implementation of pcibios_window_alignment().
>
> pcibios_window_alignment() defaults to returning 1 if the function pointer
> is NULL, which is the same was what cxl_pci_window_alignment() does.
>
> cxl_pci_window_alignment() is unnecessary, so remove it. No functional
> change intended.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
> ---
Thanks!
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Fred
> drivers/misc/cxl/vphb.c | 7 -------
> 1 file changed, 7 deletions(-)
>
> diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
> index 1264253cc07b..6332db8044bd 100644
> --- a/drivers/misc/cxl/vphb.c
> +++ b/drivers/misc/cxl/vphb.c
> @@ -67,12 +67,6 @@ static void cxl_pci_disable_device(struct pci_dev *dev)
> }
> }
>
> -static resource_size_t cxl_pci_window_alignment(struct pci_bus *bus,
> - unsigned long type)
> -{
> - return 1;
> -}
> -
> static void cxl_pci_reset_secondary_bus(struct pci_dev *dev)
> {
> /* Should we do an AFU reset here ? */
> @@ -200,7 +194,6 @@ static struct pci_controller_ops cxl_pci_controller_ops =
> .enable_device_hook = cxl_pci_enable_device_hook,
> .disable_device = cxl_pci_disable_device,
> .release_device = cxl_pci_disable_device,
> - .window_alignment = cxl_pci_window_alignment,
> .reset_secondary_bus = cxl_pci_reset_secondary_bus,
> .setup_msi_irqs = cxl_setup_msi_irqs,
> .teardown_msi_irqs = cxl_teardown_msi_irqs,
next prev parent reply other threads:[~2022-12-06 6:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-05 22:32 [PATCH] cxl: Remove unnecessary cxl_pci_window_alignment() Bjorn Helgaas
2022-12-06 6:20 ` Frederic Barrat [this message]
2022-12-08 12:40 ` Michael Ellerman
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