[PATCH v4 4/6] infiniband: cxgb4: Eliminate duplicate barriers on weakly-ordered archs
okaya at codeaurora.org
okaya at codeaurora.org
Thu Mar 22 05:48:35 PDT 2018
On 2018-03-22 08:24, okaya at codeaurora.org wrote:
> On 2018-03-22 02:44, kbuild test robot wrote:
>> Hi Sinan,
>>
>> Thank you for the patch! Yet something to improve:
>>
>> [auto build test ERROR on linus/master]
>> [also build test ERROR on v4.16-rc6 next-20180321]
>> [if your patch is applied to the wrong git tree, please drop us a note
>> to help improve the system]
>>
>> url:
>> https://github.com/0day-ci/linux/commits/Sinan-Kaya/ib-Eliminate-duplicate-barriers-on-weakly-ordered-archs/20180321-091659
>> config: xtensa-allyesconfig (attached as .config)
>> compiler: xtensa-linux-gcc (GCC) 7.2.0
>> reproduce:
>> 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
>> make.cross ARCH=xtensa
>>
>
> Jason,
>
> Can you remove the writeq change if it is too late for me to fix?
>
> This is an infrastructural issue on xtensa arch.
>
> Probably, it won't get fixed today.
AFAIS, even writeq won't compile on this arch. I started questioning
this build test.
>
> Sinan
>
>
>> All errors (new ones prefixed by >>):
>>
>> In file included from drivers/infiniband/hw/cxgb4/iw_cxgb4.h:73:0,
>> from drivers/infiniband/hw/cxgb4/device.c:40:
>> drivers/infiniband/hw/cxgb4/t4.h: In function 'pio_copy':
>>>> drivers/infiniband/hw/cxgb4/t4.h:460:3: error: implicit declaration
>>>> of function 'writeq_relaxed'; did you mean 'writel_relaxed'?
>>>> [-Werror=implicit-function-declaration]
>> writeq_relaxed(*src, dst);
>> ^~~~~~~~~~~~~~
>> writel_relaxed
>> cc1: some warnings being treated as errors
>>
>> vim +460 drivers/infiniband/hw/cxgb4/t4.h
>>
>> 450
>> 451 /* This function copies 64 byte coalesced work request to
>> memory
>> 452 * mapped BAR2 space. For coalesced WRs, the SGE fetches data
>> 453 * from the FIFO instead of from Host.
>> 454 */
>> 455 static inline void pio_copy(u64 __iomem *dst, u64 *src)
>> 456 {
>> 457 int count = 8;
>> 458
>> 459 while (count) {
>> > 460 writeq_relaxed(*src, dst);
>> 461 src++;
>> 462 dst++;
>> 463 count--;
>> 464 }
>> 465 }
>> 466
>>
>> ---
>> 0-DAY kernel test infrastructure Open Source Technology
>> Center
>> https://lists.01.org/pipermail/kbuild-all Intel
>> Corporation
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