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| author | Sergio Paracuellos <sergio.paracuellos@gmail.com> | 2020-04-13 17:50:17 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-16 12:33:02 +0200 |
| commit | cddc585ec92c074025d2d76bc0f6ec120e44fe8a (patch) | |
| tree | 01d53c52444b52818f5188a118bff68ac6459c39 /drivers/staging | |
| parent | 535bd126d65364b51d9bdeccf584979b7ff1ded3 (diff) | |
| download | linux-cddc585ec92c074025d2d76bc0f6ec120e44fe8a.tar.bz2 | |
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 <neil@brown.name>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20200413155018.31921-2-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/mt7621-pci/pci-mt7621.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/staging/mt7621-pci/pci-mt7621.c b/drivers/staging/mt7621-pci/pci-mt7621.c index 6a9f4b6cdd93..eede8d9268ac 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)) |