Fix below build error:
reproduce:
wget
https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
-O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 9239d88fc5e58a2a72bc949362f999aac9bffb29
# save the attached .config to linux build tree
make.cross ARCH=arm
All error/warnings:
In file included from include/linux/seqlock.h:35:0,
from include/linux/time.h:5,
from include/linux/stat.h:18,
from include/linux/module.h:10,
from drivers/staging/emxx_udc/emxx_udc.c:22:
drivers/staging/emxx_udc/emxx_udc.c: In function
'nbu2ss_gad_set_selfpowered':
>> drivers/staging/emxx_udc/emxx_udc.c:3129:21: error: 'udc' undeclared (first
>> use in this function)
spin_lock_irqsave(&udc->lock, flags);
^
include/linux/spinlock.h:215:34: note: in definition of macro
'raw_spin_lock_irqsave'
flags = _raw_spin_lock_irqsave(lock); \
^
>> drivers/staging/emxx_udc/emxx_udc.c:3129:2: note: in expansion of macro
>> 'spin_lock_irqsave'
spin_lock_irqsave(&udc->lock, flags);
^
drivers/staging/emxx_udc/emxx_udc.c:3129:21: note: each undeclared
identifier is reported only once for each function it appears in
spin_lock_irqsave(&udc->lock, flags);
^
include/linux/spinlock.h:215:34: note: in definition of macro
'raw_spin_lock_irqsave'
flags = _raw_spin_lock_irqsave(lock); \
^
>> drivers/staging/emxx_udc/emxx_udc.c:3129:2: note: in expansion of macro
>> 'spin_lock_irqsave'
spin_lock_irqsave(&udc->lock, flags);
^
vim +/udc +3129 drivers/staging/emxx_udc/emxx_udc.c
33aa8d45 Magnus Damm 2014-06-06 3123
33aa8d45 Magnus Damm 2014-06-06 3124 if (pgadget == NULL) {
33aa8d45 Magnus Damm 2014-06-06 3125 ERR("%s, bad param\n",
__func__);
33aa8d45 Magnus Damm 2014-06-06 3126 return -EINVAL;
33aa8d45 Magnus Damm 2014-06-06 3127 }
33aa8d45 Magnus Damm 2014-06-06 3128
33aa8d45 Magnus Damm 2014-06-06 @3129 spin_lock_irqsave(&udc->lock, flags);
9239d88f Peter Chen 2015-01-28 3130 pgadget->is_selfpowered =
(is_selfpowered != 0);
33aa8d45 Magnus Damm 2014-06-06 3131 spin_unlock_irqrestore(&udc->lock,
flags);
33aa8d45 Magnus Damm 2014-06-06 3132
Signed-off-by: Peter Chen <[email protected]>
---
drivers/staging/emxx_udc/emxx_udc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/emxx_udc/emxx_udc.c
b/drivers/staging/emxx_udc/emxx_udc.c
index 1d3135a..bd70ea0 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -3117,6 +3117,7 @@ static int nbu2ss_gad_wakeup(struct usb_gadget *pgadget)
static int nbu2ss_gad_set_selfpowered(struct usb_gadget *pgadget,
int is_selfpowered)
{
+ struct nbu2ss_udc *udc;
unsigned long flags;
/* INFO("=== %s()\n", __func__); */
@@ -3126,6 +3127,8 @@ static int nbu2ss_gad_set_selfpowered(struct usb_gadget
*pgadget,
return -EINVAL;
}
+ udc = container_of(pgadget, struct nbu2ss_udc, gadget);
+
spin_lock_irqsave(&udc->lock, flags);
pgadget->is_selfpowered = (is_selfpowered != 0);
spin_unlock_irqrestore(&udc->lock, flags);
--
1.9.1
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