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 <peter.chen@xxxxxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
