From: Sergio Paracuellos Date: Mon, 13 Apr 2020 15:50:17 +0000 (+0200) Subject: staging: mt7621-pci: add clarification comment in 'mt7621_pcie_init_virtual_bridges' X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=cddc585ec92c074025d2d76bc0f6ec120e44fe8a;p=linux.git staging: mt7621-pci: add clarification comment in 'mt7621_pcie_init_virtual_bridges' Add a comment explaining a bit what is going on in this function. It would be helfulp for other people for a better understanding of the code. Suggested-by: NeilBrown Signed-off-by: Sergio Paracuellos Link: https://lore.kernel.org/r/20200413155018.31921-2-sergio.paracuellos@gmail.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/mt7621-pci/pci-mt7621.c b/drivers/staging/mt7621-pci/pci-mt7621.c index 6a9f4b6cdd935..eede8d9268acd 100644 --- a/drivers/staging/mt7621-pci/pci-mt7621.c +++ b/drivers/staging/mt7621-pci/pci-mt7621.c @@ -622,6 +622,11 @@ static int mt7621_pcie_init_virtual_bridges(struct mt7621_pcie *pcie) if (pcie_link_status == 0) return -1; + /* + * Assign device numbers from zero to the enabled ports, + * then assigning remaining device numbers to any disabled + * ports. + */ n = 0; for (i = 0; i < PCIE_P2P_CNT; i++) if (pcie_link_status & BIT(i))