Re: [PATCH 0/3] common/sfc_efx/base: fix compiler warnings in X4 netport API

[Ivan Malov <ivan.malov@arknetworks.am>]

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On Fri, 11 Jul 2025, Stephen Hemminger wrote:

> On Fri, 11 Jul 2025 18:43:46 +0400
> Ivan Malov <ivan.malov@arknetworks.am> wrote:
>
>> The 25.07 release has got support for AMD Solarflare X45xx adapters [1].
>> This series is a follow-up to [1] to fix compiler warnings in the base
>> driver that are seen in Windows driver build, also based on this driver.
>>
>> [1] https://patches.dpdk.org/project/dpdk/list/?series=35095
>>
>> Ivan Malov (3):
>>   common/sfc_efx/base: fix compiler warnings in statistic code
>>   common/sfc_efx/base: fix compiler warnings in PHY link setup
>>   common/sfc_efx/base: fix compiler warning in PHY link getter
>>
>>  drivers/common/sfc_efx/base/efx_np.c       | 7 ++-----
>>  drivers/common/sfc_efx/base/medford4_phy.c | 1 -
>>  2 files changed, 2 insertions(+), 6 deletions(-)
>>
>
> Have your tried enabling -Wshadow and -Wduplicated-branches and -Wduplicated-cond
> Those flags are finding stuff in other places.
>
Thanks Stephen. That is very useful. I tried adding these flags via meson.build
for common/sfc_efx, common/sfc_efx/base and for net/sfc trees and the only thing
I was able to find is as follows:

In file included from ../lib/eal/x86/include/rte_byteorder.h:9,
                  from ../drivers/net/sfc/sfc_ef10_essb_rx.c:14:
../drivers/net/sfc/sfc_ef10_essb_rx.c: In function ‘sfc_ef10_essb_rx_qsize_up_rings’:
../drivers/net/sfc/sfc_dp.h:27:27: warning: declaration of ‘_a’ shadows a previous local [-Wshadow]
    27 |                 typeof(a) _a = (a);     \
       |                           ^~
../lib/eal/include/rte_common.h:817:34: note: in definition of macro ‘RTE_MAX’
   817 |                 typeof (a) _a = (a); \
       |                                  ^
../drivers/net/sfc/sfc_ef10_essb_rx.c:535:33: note: in expansion of macro ‘SFC_DIV_ROUND_UP’
   535 |         nb_hw_rx_desc = RTE_MAX(SFC_DIV_ROUND_UP(nb_rx_desc,
       |                                 ^~~~~~~~~~~~~~~~
../lib/eal/include/rte_common.h:817:28: note: shadowed declaration is here
   817 |                 typeof (a) _a = (a); \
       |                            ^~
../drivers/net/sfc/sfc_ef10_essb_rx.c:535:25: note: in expansion of macro ‘RTE_MAX’
   535 |         nb_hw_rx_desc = RTE_MAX(SFC_DIV_ROUND_UP(nb_rx_desc,
       |

But no extra warnings in the base driver.

Thank you.