2023-03-21 12:02:26

by Tom Rix

Subject: [PATCH] mISDN: remove unused vpm_read_address function

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 <[email protected]>
---
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

2023-03-22 13:32:18

by Simon Horman

Subject: Re: [PATCH] mISDN: remove unused vpm_read_address function

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?

2023-03-23 15:19:58

by Tom Rix

Subject: Re: [PATCH] mISDN: remove unused vpm_read_address function

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


>