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SubjectRe: [PATCH v4 4/6] infiniband: cxgb4: Eliminate duplicate barriers on weakly-ordered archs
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.

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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