2020-09-18 10:11:28

by Herrington

[permalink] [raw]
Subject: [PATCH v3] ptp: mark symbols static where possible

We get 1 warning when building kernel with W=1:
drivers/ptp/ptp_pch.c:182:5: warning: no previous prototype for ‘pch_ch_control_read’ [-Wmissing-prototypes]
u32 pch_ch_control_read(struct pci_dev *pdev)
drivers/ptp/ptp_pch.c:193:6: warning: no previous prototype for ‘pch_ch_control_write’ [-Wmissing-prototypes]
void pch_ch_control_write(struct pci_dev *pdev, u32 val)
drivers/ptp/ptp_pch.c:201:5: warning: no previous prototype for ‘pch_ch_event_read’ [-Wmissing-prototypes]
u32 pch_ch_event_read(struct pci_dev *pdev)
drivers/ptp/ptp_pch.c:212:6: warning: no previous prototype for ‘pch_ch_event_write’ [-Wmissing-prototypes]
void pch_ch_event_write(struct pci_dev *pdev, u32 val)
drivers/ptp/ptp_pch.c:220:5: warning: no previous prototype for ‘pch_src_uuid_lo_read’ [-Wmissing-prototypes]
u32 pch_src_uuid_lo_read(struct pci_dev *pdev)
drivers/ptp/ptp_pch.c:231:5: warning: no previous prototype for ‘pch_src_uuid_hi_read’ [-Wmissing-prototypes]
u32 pch_src_uuid_hi_read(struct pci_dev *pdev)
drivers/ptp/ptp_pch.c:242:5: warning: no previous prototype for ‘pch_rx_snap_read’ [-Wmissing-prototypes]
u64 pch_rx_snap_read(struct pci_dev *pdev)
drivers/ptp/ptp_pch.c:259:5: warning: no previous prototype for ‘pch_tx_snap_read’ [-Wmissing-prototypes]
u64 pch_tx_snap_read(struct pci_dev *pdev)
drivers/ptp/ptp_pch.c:300:5: warning: no previous prototype for ‘pch_set_station_address’ [-Wmissing-prototypes]
int pch_set_station_address(u8 *addr, struct pci_dev *pdev)

Signed-off-by: Herrington <[email protected]>
---
drivers/ptp/ptp_pch.c | 11 -----------
include/linux/ptp_clock_kernel.h | 9 +++++++++
2 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/ptp/ptp_pch.c b/drivers/ptp/ptp_pch.c
index ce10ecd41ba0..f7ff7230623e 100644
--- a/drivers/ptp/ptp_pch.c
+++ b/drivers/ptp/ptp_pch.c
@@ -179,17 +179,6 @@ static inline void pch_block_reset(struct pch_dev *chip)
iowrite32(val, (&chip->regs->control));
}

-u32 pch_ch_control_read(struct pci_dev *pdev)
-{
- struct pch_dev *chip = pci_get_drvdata(pdev);
- u32 val;
-
- val = ioread32(&chip->regs->ch_control);
-
- return val;
-}
-EXPORT_SYMBOL(pch_ch_control_read);
-
void pch_ch_control_write(struct pci_dev *pdev, u32 val)
{
struct pch_dev *chip = pci_get_drvdata(pdev);
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
index d3e8ba5c7125..5db4b8891b22 100644
--- a/include/linux/ptp_clock_kernel.h
+++ b/include/linux/ptp_clock_kernel.h
@@ -307,4 +307,13 @@ static inline void ptp_read_system_postts(struct ptp_system_timestamp *sts)
ktime_get_real_ts64(&sts->post_ts);
}

+void pch_ch_control_write(struct pci_dev *pdev, u32 val);
+u32 pch_ch_event_read(struct pci_dev *pdev);
+void pch_ch_event_write(struct pci_dev *pdev, u32 val);
+u32 pch_src_uuid_lo_read(struct pci_dev *pdev);
+u32 pch_src_uuid_hi_read(struct pci_dev *pdev);
+u64 pch_rx_snap_read(struct pci_dev *pdev);
+u64 pch_tx_snap_read(struct pci_dev *pdev);
+int pch_set_station_address(u8 *addr, struct pci_dev *pdev);
+
#endif
--
2.18.1


2020-09-18 14:36:14

by Richard Cochran

[permalink] [raw]
Subject: Re: [PATCH v3] ptp: mark symbols static where possible

On Fri, Sep 18, 2020 at 06:09:43PM +0800, Herrington wrote:
> diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h
> index d3e8ba5c7125..5db4b8891b22 100644
> --- a/include/linux/ptp_clock_kernel.h
> +++ b/include/linux/ptp_clock_kernel.h
> @@ -307,4 +307,13 @@ static inline void ptp_read_system_postts(struct ptp_system_timestamp *sts)
> ktime_get_real_ts64(&sts->post_ts);
> }
>
> +void pch_ch_control_write(struct pci_dev *pdev, u32 val);
> +u32 pch_ch_event_read(struct pci_dev *pdev);
> +void pch_ch_event_write(struct pci_dev *pdev, u32 val);
> +u32 pch_src_uuid_lo_read(struct pci_dev *pdev);
> +u32 pch_src_uuid_hi_read(struct pci_dev *pdev);
> +u64 pch_rx_snap_read(struct pci_dev *pdev);
> +u64 pch_tx_snap_read(struct pci_dev *pdev);
> +int pch_set_station_address(u8 *addr, struct pci_dev *pdev);

NAK. Please see Jacob's comment on the origin patch.

Thanks,
Richard

2020-09-18 15:25:56

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH v3] ptp: mark symbols static where possible

Hi Herrington,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.9-rc5 next-20200918]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Herrington/ptp-mark-symbols-static-where-possible/20200918-181139
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 10b82d5176488acee2820e5a2cf0f2ec5c3488b6
config: arc-allyesconfig (attached as .config)
compiler: arceb-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All warnings (new ones prefixed by >>):

In file included from drivers/net/ethernet/aquantia/atlantic/aq_ptp.c:12:
>> include/linux/ptp_clock_kernel.h:310:34: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
310 | void pch_ch_control_write(struct pci_dev *pdev, u32 val);
| ^~~~~~~
include/linux/ptp_clock_kernel.h:311:30: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
311 | u32 pch_ch_event_read(struct pci_dev *pdev);
| ^~~~~~~
include/linux/ptp_clock_kernel.h:312:32: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
312 | void pch_ch_event_write(struct pci_dev *pdev, u32 val);
| ^~~~~~~
include/linux/ptp_clock_kernel.h:313:33: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
313 | u32 pch_src_uuid_lo_read(struct pci_dev *pdev);
| ^~~~~~~
include/linux/ptp_clock_kernel.h:314:33: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
314 | u32 pch_src_uuid_hi_read(struct pci_dev *pdev);
| ^~~~~~~
include/linux/ptp_clock_kernel.h:315:29: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
315 | u64 pch_rx_snap_read(struct pci_dev *pdev);
| ^~~~~~~
include/linux/ptp_clock_kernel.h:316:29: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
316 | u64 pch_tx_snap_read(struct pci_dev *pdev);
| ^~~~~~~
include/linux/ptp_clock_kernel.h:317:46: warning: 'struct pci_dev' declared inside parameter list will not be visible outside of this definition or declaration
317 | int pch_set_station_address(u8 *addr, struct pci_dev *pdev);
| ^~~~~~~

# https://github.com/0day-ci/linux/commit/d5fd7587ec0ce30118654a4b5c38a41a19ea5920
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Herrington/ptp-mark-symbols-static-where-possible/20200918-181139
git checkout d5fd7587ec0ce30118654a4b5c38a41a19ea5920
vim +310 include/linux/ptp_clock_kernel.h

309
> 310 void pch_ch_control_write(struct pci_dev *pdev, u32 val);
311 u32 pch_ch_event_read(struct pci_dev *pdev);
312 void pch_ch_event_write(struct pci_dev *pdev, u32 val);
313 u32 pch_src_uuid_lo_read(struct pci_dev *pdev);
314 u32 pch_src_uuid_hi_read(struct pci_dev *pdev);
315 u64 pch_rx_snap_read(struct pci_dev *pdev);
316 u64 pch_tx_snap_read(struct pci_dev *pdev);
317 int pch_set_station_address(u8 *addr, struct pci_dev *pdev);
318

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]


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