On Fri, Jan 21, 2022 at 05:26:35PM +0000, Vikash Bansal wrote: > On 20/01/22, 11:56 AM, "Greg KH" <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > Run pahole for pci_dev structure, it is not adding any padding bytes. > Please refer to my previous email for replies to Greg's other comments. Please don't indent your entire response. The original posting apparently didn't go to linux-pci@xxxxxxxxxxxxxxx or was rejected, maybe because it wasn't plain text (see http://vger.kernel.org/majordomo-info.html)? It doesn't appear in the thread at https://lore.kernel.org/all/7E2C2648-76CE-4987-AB4F-7B4576F10D7B@xxxxxxxxxx/ > >On Tue, Jan 18, 2022 at 09:16:01AM -0800, Vikash Bansal wrote: > >> In the current implementation, the PCI capability list is parsed from > >> the beginning to find each capability, which results in a large number > >> of redundant PCI reads. > >> > >> Instead, we can parse the complete list just once, store it in the > >> pci_dev structure, and get the offset of each capability directly from > >> the pci_dev structure. > ...
