clang with W=1 reports
drivers/isdn/hardware/mISDN/hfcmulti.c:667:1: error: unused function
  'vpm_read_address' [-Werror,-Wunused-function]
vpm_read_address(struct hfc_multi *c)
^
This function is not used, so remove it.

Signed-off-by: Tom Rix <trix@redhat.com>
---
 drivers/isdn/hardware/mISDN/hfcmulti.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index e840609c50eb..ac665cf64f8c 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -663,20 +663,6 @@ vpm_write_address(struct hfc_multi *hc, unsigned short addr)
 	cpld_write_reg(hc, 1, 0x01 & (addr >> 8));
 }
 
-static inline unsigned short
-vpm_read_address(struct hfc_multi *c)
-{
-	unsigned short addr;
-	unsigned short highbit;
-
-	addr = cpld_read_reg(c, 0);
-	highbit = cpld_read_reg(c, 1);
-
-	addr = addr | (highbit << 8);
-
-	return addr & 0x1ff;
-}
-
 static inline unsigned char
 vpm_in(struct hfc_multi *c, int which, unsigned short addr)
 {
-- 
2.27.0

On Tue, Mar 21, 2023 at 08:01:27AM -0400, Tom Rix wrote:
> clang with W=1 reports
> drivers/isdn/hardware/mISDN/hfcmulti.c:667:1: error: unused function
>   'vpm_read_address' [-Werror,-Wunused-function]
> vpm_read_address(struct hfc_multi *c)
> ^
> This function is not used, so remove it.

Yes, agreed.

But with this patch applied, make CC=clang W=1 tells me:

  CALL    scripts/checksyscalls.sh
  CC [M]  drivers/isdn/hardware/mISDN/hfcmulti.o
drivers/isdn/hardware/mISDN/hfcmulti.c:643:1: error: unused function 'cpld_read_reg' [-Werror,-Wunused-function]

So perhaps cpld_read_reg should be removed too?

On 3/22/23 6:20 AM, Simon Horman wrote:
> On Tue, Mar 21, 2023 at 08:01:27AM -0400, Tom Rix wrote:
>> clang with W=1 reports
>> drivers/isdn/hardware/mISDN/hfcmulti.c:667:1: error: unused function
>>    'vpm_read_address' [-Werror,-Wunused-function]
>> vpm_read_address(struct hfc_multi *c)
>> ^
>> This function is not used, so remove it.
> Yes, agreed.
>
> But with this patch applied, make CC=clang W=1 tells me:
>
>    CALL    scripts/checksyscalls.sh
>    CC [M]  drivers/isdn/hardware/mISDN/hfcmulti.o
> drivers/isdn/hardware/mISDN/hfcmulti.c:643:1: error: unused function 'cpld_read_reg' [-Werror,-Wunused-function]
>
> So perhaps cpld_read_reg should be removed too?

Yes, i will add and respin.

Thanks,

Tom


>