Re: [cip-dev] [ANNOUNCE] Release v4.19.325-cip123

[Ulrich Hecht <uli@fpond.eu>]

> On 09/03/2025 8:31 AM CEST Kazunori Kobayashi via lists.cip-project.org > I ran into the following compilation error with omap2plus_defconfig applied in this kernel version.
> | /buildbot/build_daily_emlinux_am335xevmsk_latest_dev/build/build_am335x-evmsk_emlinux_core-image-weston/tmp-glibc/work-shared/am335x-evmsk/kernel-source/drivers/media/platform/omap3isp/ispccdc.c: In function 'ccdc_lsc_config': | /buildbot/build_daily_emlinux_am335xevmsk_latest_dev/build/build_am335x-evmsk_emlinux_core-image-weston/tmp-glibc/work-shared/am335x-evmsk/kernel-source/drivers/media/platform/omap3isp/ispccdc.c:452:3: error: implicit declaration of function 'dma_sync_sgtable_for_cpu'; did you mean 'dma_sync_single_for_cpu'? [-Werror=implicit-function-declaration] | dma_sync_sgtable_for_cpu(isp->dev, &req->table.sgt, | ^~~~~~~~~~~~~~~~~~~~~~~~ | dma_sync_single_for_cpu | CC [M] drivers/media/rc/keymaps/rc-avermedia-a16d.o | /buildbot/build_daily_emlinux_am335xevmsk_latest_dev/build/build_am335x-evmsk_emlinux_core-image-weston/tmp-glibc/work-shared/am335x-evmsk/kernel-source/drivers/media/platform/omap3isp/ispccdc.c:461:3: error: implicit declaration of function 'dma_sync_sgtable_for_device'; did you mean 'dma_sync_single_for_device'? [-Werror=implicit-function-declaration] | dma_sync_sgtable_for_device(isp->dev, &req->table.sgt, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ | dma_sync_single_for_device
> It seems caused by the following change.
> https://gitlab.com/cip-project/cip-kernel/linux-cip/-/commit/3483db997d491ba78957eb04743f6bb2ecc242aa
> This change seems merged from the 5.4 based kernel, but some other dependencies would also be needed to pass the compilation.

Thanks for the report.

Looks like it's missing "dma-mapping: add generic helpers for mapping sgtable objects". I pushed a backport to the rc tree (https://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git/log/?h=linux-4.19.y-st-rc), please check if it works.

I have also added omap2plus_defconfig to my local build configs.

CU
Uli