On 05/27/15 04:03, Stephen Rothwell wrote:
Hi Kalle,
After merging the wireless-drivers-next tree, today's linux-next build
(arm multi_v7_defconfig) failed like this:
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c: In function 'brcmf_ops_sdio_probe':
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c:1139:7: error: dereferencing pointer to incomplete type
adev->flags.power_manageable = 0;
^
Caused by commit f0992ace680c ("brcmfmac: prohibit ACPI power
management for brcmfmac driver").
I have used the wireless-drivers-next from next-20150526 for today.
Crap. struct acpi_device details are only known when CONFIG_ACPI is set.
The attached patch should fix the issue.
Regards,
Arend
>From fd56b4446c613ceec15c11758ed817d13efb9bba Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@xxxxxxxxxxxx>
Date: Wed, 27 May 2015 10:48:46 +0200
Subject: [PATCH] brcmfmac: fix invalid access to struct acpi_device fields
The fields of struct acpi_device are only known when CONFIG_ACPI is
defined. Fix this by using a helper function. This will resolve the
issue found in linux-next:
../brcmfmac/bcmsdh.c: In function 'brcmf_ops_sdio_probe':
../brcmfmac/bcmsdh.c:1139:7: error: dereferencing pointer to incomplete type
adev->flags.power_manageable = 0;
^
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
---
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index b0d0ff5..71779b9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -1117,6 +1117,18 @@ MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
static struct brcmfmac_sdio_platform_data *brcmfmac_sdio_pdata;
+static void brcmf_sdiod_acpi_set_power_manageable(struct device *dev,
+ int val)
+{
+#if IS_ENABLED(CONFIG_ACPI)
+ struct acpi_device *adev;
+
+ adev = ACPI_COMPANION(dev);
+ if (adev)
+ adev->flags.power_manageable = 0;
+#endif
+}
+
static int brcmf_ops_sdio_probe(struct sdio_func *func,
const struct sdio_device_id *id)
{
@@ -1124,7 +1136,6 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
struct brcmf_sdio_dev *sdiodev;
struct brcmf_bus *bus_if;
struct device *dev;
- struct acpi_device *adev;
brcmf_dbg(SDIO, "Enter\n");
brcmf_dbg(SDIO, "Class=%x\n", func->class);
@@ -1132,11 +1143,9 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
brcmf_dbg(SDIO, "Function#: %d\n", func->num);
- /* prohibit ACPI power management for this device */
dev = &func->dev;
- adev = ACPI_COMPANION(dev);
- if (adev)
- adev->flags.power_manageable = 0;
+ /* prohibit ACPI power management for this device */
+ brcmf_sdiod_acpi_set_power_manageable(dev, 0);
/* Consume func num 1 but dont do anything with it. */
if (func->num == 1)
--
1.9.1
