[PATCH net-next] brcmfmac: fix build without CONFIG_BRCMFMAC_PROTO_BCDC

[Arnd Bergmann]

With CONFIG_BRCMFMAC_PROTO_BCDC unset, we cannot build the fwsignal.c file:

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c: In function 'brcmf_fws_notify_credit_map':
drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:1590:31: error: implicit declaration of function 'drvr_to_fws'; did you mean 'dev_to_psd'? [-Werror=implicit-function-declaration]
  struct brcmf_fws_info *fws = drvr_to_fws(ifp->drvr);
drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:1590:31: error: initialization makes pointer from integer without a cast [-Werror=int-conversion]
drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c:1621:31: error: initialization makes pointer from integer without a cast [-Werror=int-conversion]

However, as pointed out in the changeset description for the patch that caused
the problem, fwsignal.c is only required when CONFIG_BRCMFMAC_PROTO_BCDC is
enabled, so we can simply change the Makefile to build it conditionally.

Fixes: acf8ac41dd73 ("brcmfmac: remove reference to fwsignal data from struct brcmf_pub")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
index 0383ba559edc..1f5a9b948abf 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
@@ -25,7 +25,6 @@ brcmfmac-objs += \
 		chip.o \
 		fwil.o \
 		fweh.o \
-		fwsignal.o \
 		p2p.o \
 		proto.o \
 		common.o \
@@ -36,7 +35,8 @@ brcmfmac-objs += \
 		vendor.o \
 		pno.o
 brcmfmac-$(CONFIG_BRCMFMAC_PROTO_BCDC) += \
-		bcdc.o
+		bcdc.o \
+		fwsignal.o
 brcmfmac-$(CONFIG_BRCMFMAC_PROTO_MSGBUF) += \
 		commonring.o \
 		flowring.o \
-- 
2.9.0