From: Sebastian Ott Date: Fri, 22 Jan 2016 13:04:18 +0000 (+0100) Subject: s390/pci: set error state for unusable functions X-Git-Tag: archive/raspbian/4.9.13-1+rpi1~10^2~2987^2~5 X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success/%22http:/www.example.com/cgi/success?a=commitdiff_plain;h=8ead7efb6379354d0d31efb39342f4399c87cb67;p=linux-4.9.git s390/pci: set error state for unusable functions We receive special notifications from firmware when an error was detected and a pci function became unusable. Set the error_state accordingly to give device drivers a hint that they don't need to try error recovery. Suggested-by: Alexander Schmidt Signed-off-by: Sebastian Ott Reviewed-by: Gerald Schaefer Signed-off-by: Martin Schwidefsky --- diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c index 369a3e05d468..b0e04751c5d5 100644 --- a/arch/s390/pci/pci_event.c +++ b/arch/s390/pci/pci_event.c @@ -53,6 +53,11 @@ static void __zpci_event_error(struct zpci_ccdf_err *ccdf) pr_err("%s: Event 0x%x reports an error for PCI function 0x%x\n", pdev ? pci_name(pdev) : "n/a", ccdf->pec, ccdf->fid); + + if (!pdev) + return; + + pdev->error_state = pci_channel_io_perm_failure; } void zpci_event_error(void *data)