From: Heiner Kallweit <hkallwe...@gmail.com>

[ Upstream commit 4b2d8ca9208be636b30e924b1cbcb267b0740c93 ]

On this system the M.2 PCIe WiFi card isn't detected after reboot, only
after cold boot. reboot=pci fixes this behavior. In [0] the same issue
is described, although on another system and with another Intel WiFi
card. In case it's relevant, both systems have Celeron CPUs.

Add a PCI reboot quirk on affected systems until a more generic fix is
available.

[0] https://bugzilla.kernel.org/show_bug.cgi?id=202399

 [ bp: Massage commit message. ]

Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
Signed-off-by: Borislav Petkov <b...@suse.de>
Link: https://lkml.kernel.org/r/1524eafd-f89c-cfa4-ed70-0bde9e45e...@gmail.com
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 arch/x86/kernel/reboot.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 762f5c1465a6f..a9d4d6fbc7824 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -477,6 +477,15 @@ static const struct dmi_system_id reboot_dmi_table[] 
__initconst = {
                },
        },
 
+       {       /* PCIe Wifi card isn't detected after reboot otherwise */
+               .callback = set_pci_reboot,
+               .ident = "Zotac ZBOX CI327 nano",
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "NA"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "ZBOX-CI327NANO-GS-01"),
+               },
+       },
+
        /* Sony */
        {       /* Handle problems with rebooting on Sony VGN-Z540N */
                .callback = set_bios_reboot,
-- 
2.27.0

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