Re: [PATCH v8 3/3] EDAC: nuvoton: Add NPCM memory controller driver

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Dear Paul,

Paul Menzel <pmenzel@xxxxxxxxxxxxx> 於 2022年5月3日 週二 下午5:58寫道:
>
> Dear Medad,
>
>
> Thank you for v8.
>
> Am 03.05.22 um 11:47 schrieb Medad CChien:
> > Add memory controller support for Nuvoton NPCM SoC.
> >
> > Signed-off-by: Medad CChien <ctcchien@xxxxxxxxxxx>
> > Reviewed-by: Borislav Petkov <bp@xxxxxxxxx>
> > Reviewed-by: Paul Menzel <pmenzel@xxxxxxxxxxxxx>
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
>
> This line is confusing.

OK, I will add more description.

>
> > error:
> >     macro "edac_printk" requires 4 arguments, but only 2 given
> >
> > warnings:
> >     performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
> >     logical not is only applied to the left hand side of this bitwise operator [-Wlogical-not-parentheses]
> >     mixing declarations and code is a C99 extension [-Wdeclaration-after-statement]
> >
> > Note:
> >     you can force an ecc event by writing a string to edac sysfs node
> >     and remember to define CONFIG_EDAC_DEBUG to enable this feature
> >     example: force a correctable event on checkcode bit 0
> >     echo "CE checkcode 0" > /sys/devices/system/edac/mc/mc0/forced_ecc_error
>
> Shouldn’t this go above all the tags?

Yes, I should move this note above all the tags

>
> > ---
> >   drivers/edac/Kconfig     |   9 +
> >   drivers/edac/Makefile    |   1 +
> >   drivers/edac/npcm_edac.c | 680 +++++++++++++++++++++++++++++++++++++++
> >   3 files changed, 690 insertions(+)
> >   create mode 100644 drivers/edac/npcm_edac.c
> >
> > diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
> > index 58ab63642e72..64149b524f98 100644
> > --- a/drivers/edac/Kconfig
> > +++ b/drivers/edac/Kconfig
> > @@ -539,4 +539,13 @@ config EDAC_DMC520
> >         Support for error detection and correction on the
> >         SoCs with ARM DMC-520 DRAM controller.
> >
> > +config EDAC_NPCM
> > +     tristate "Nuvoton NPCM DDR Memory Controller"
> > +     depends on (ARCH_NPCM || COMPILE_TEST)
> > +     help
> > +       Support for error detection and correction on the Nuvoton NPCM DDR
> > +       memory controller.
>
> Please add a blank line below.
>
> > +       First, ECC must be configured in the BootBlock header. Then, this driver
> > +       will expose error counters via the EDAC kernel framework.
> > +
> >   endif # EDAC
>
> […]
> > +module_platform_driver(npcm_edac_mc_driver);
> > +
> > +MODULE_AUTHOR("Medad CChien<ctcchien@xxxxxxxxxxx>");
>
> Please add a space before the <.

OK

>
> > +MODULE_DESCRIPTION("Nuvoton NPCM EDAC Driver");
> > +MODULE_LICENSE("GPL v2");
>
>
> Kind regards,
>
> Paul

B.R.
Medad




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