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SubjectRe: [PATCH 4.14 00/25] 4.14.333-rc1 review
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Hello!

On 11/12/23 12:20 p. m., Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.14.333 release.
> There are 25 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed, 13 Dec 2023 18:19:59 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.333-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>
> -------------
> Pseudo-Shortlog of commits:
>
> Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Linux 4.14.333-rc1
>
[...]
>
> Arnd Bergmann <arnd@arndb.de>
> ARM: PL011: Fix DMA support
[...]

We see a build problem with this commit (at least) on 4.14:
-----8<-----
/builds/linux/kernel/sched/core.c: In function 'sched_init':
/builds/linux/kernel/sched/core.c:5962:30: warning: the comparison will always evaluate as 'false' for the address of 'cpu_isolated_map' will never be NULL [-Waddress]
5962 | if (cpu_isolated_map == NULL)
| ^~
/builds/linux/kernel/sched/core.c:87:15: note: 'cpu_isolated_map' declared here
87 | cpumask_var_t cpu_isolated_map;
| ^~~~~~~~~~~~~~~~
/builds/linux/drivers/tty/serial/amba-pl011.c: In function 'pl011_dma_tx_refill':
/builds/linux/drivers/tty/serial/amba-pl011.c:657:27: error: 'DMA_MAPPING_ERROR' undeclared (first use in this function)
657 | if (dmatx->dma == DMA_MAPPING_ERROR) {
| ^~~~~~~~~~~~~~~~~
/builds/linux/drivers/tty/serial/amba-pl011.c:657:27: note: each undeclared identifier is reported only once for each function it appears in
make[4]: *** [/builds/linux/scripts/Makefile.build:329: drivers/tty/serial/amba-pl011.o] Error 1
make[4]: Target '__build' not remade because of errors.
----->8-----

Reverting that patch makes the build for arm/u8500_defconfig. We'll continue looking for other things.

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Greetings!

Daniel Díaz
daniel.diaz@linaro.org

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