Patch "PCI: mvebu: Use FIELD_PREP() with Link Width" has been added to the 6.1-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    PCI: mvebu: Use FIELD_PREP() with Link Width

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     pci-mvebu-use-field_prep-with-link-width.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit c735537fb9e631eb818493febe0ff49e8fe0f261
Author: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Date:   Tue Sep 19 15:56:45 2023 +0300

    PCI: mvebu: Use FIELD_PREP() with Link Width
    
    [ Upstream commit 408599ec561ad5862cda4f107626009f6fa97a74 ]
    
    mvebu_pcie_setup_hw() setups the Maximum Link Width field in the Link
    Capabilities registers using an open-coded variant of FIELD_PREP() with
    a literal in shift. Improve readability by using
    FIELD_PREP(PCI_EXP_LNKCAP_MLW, ...).
    
    Link: https://lore.kernel.org/r/20230919125648.1920-6-ilpo.jarvinen@xxxxxxxxxxxxxxx
    Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
    Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
    Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
index 1ced73726a267..668601fd0b296 100644
--- a/drivers/pci/controller/pci-mvebu.c
+++ b/drivers/pci/controller/pci-mvebu.c
@@ -264,7 +264,7 @@ static void mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
 	 */
 	lnkcap = mvebu_readl(port, PCIE_CAP_PCIEXP + PCI_EXP_LNKCAP);
 	lnkcap &= ~PCI_EXP_LNKCAP_MLW;
-	lnkcap |= (port->is_x4 ? 4 : 1) << 4;
+	lnkcap |= FIELD_PREP(PCI_EXP_LNKCAP_MLW, port->is_x4 ? 4 : 1);
 	mvebu_writel(port, lnkcap, PCIE_CAP_PCIEXP + PCI_EXP_LNKCAP);
 
 	/* Disable Root Bridge I/O space, memory space and bus mastering. */



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux