From: Sinan Kaya <okaya@kernel.org>
To: linux-acpi@vger.kernel.org
Cc: Sinan Kaya <okaya@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <lenb@kernel.org>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 1/3] ACPI: Allow PCI to be disabled for reboot
Date: Sat, 8 Dec 2018 21:46:41 +0000 [thread overview]
Message-ID: <20181208214644.5374-1-okaya@kernel.org> (raw)
Make PCI reboot conditional on PCI support being present on the kernel
configuration.
Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
drivers/acpi/reboot.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c
index 6fa9c2a4cfe9..9aa367f098a6 100644
--- a/drivers/acpi/reboot.c
+++ b/drivers/acpi/reboot.c
@@ -7,8 +7,6 @@
void acpi_reboot(void)
{
struct acpi_generic_address *rr;
- struct pci_bus *bus0;
- unsigned int devfn;
u8 reset_value;
if (acpi_disabled)
@@ -33,6 +31,11 @@ void acpi_reboot(void)
* on a device on bus 0. */
switch (rr->space_id) {
case ACPI_ADR_SPACE_PCI_CONFIG:
+ {
+#ifdef CONFIG_PCI
+ unsigned int devfn;
+ struct pci_bus *bus0;
+
/* The reset register can only live on bus 0. */
bus0 = pci_find_bus(0, 0);
if (!bus0)
@@ -45,7 +48,10 @@ void acpi_reboot(void)
pci_bus_write_config_byte(bus0, devfn,
(rr->address & 0xffff), reset_value);
break;
-
+#else
+ return;
+#endif
+ }
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
case ACPI_ADR_SPACE_SYSTEM_IO:
printk(KERN_DEBUG "ACPI MEMORY or I/O RESET_REG.\n");
--
2.19.0
next reply other threads:[~2018-12-08 21:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-08 21:46 Sinan Kaya [this message]
2018-12-08 21:46 ` [PATCH v2 2/3] ACPI / OSL: Allow PCI to be disabled Sinan Kaya
2018-12-08 21:46 ` [PATCH v2 3/3] PCI/ACPI: allow ACPI to be built without PCI support Sinan Kaya
2018-12-09 6:20 ` Andy Shevchenko
2018-12-09 16:03 ` Sinan Kaya
2018-12-11 10:12 ` [PATCH v2 1/3] ACPI: Allow PCI to be disabled for reboot Rafael J. Wysocki
2018-12-11 16:54 ` Sinan Kaya
2018-12-11 21:49 ` Rafael J. Wysocki
2018-12-11 22:00 ` Sinan Kaya
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