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SubjectRe: [PATCH] PCI: eliminate abnormal characters when reads help information of "PCI_P2PDMA" under menuconfig
On Wed, Jul 20, 2022 at 12:23:29PM -0500, Bjorn Helgaas wrote:
> [+cc Andy, Joe, possible checkpatch question]
>
> On Wed, Jul 20, 2022 at 03:22:03PM +0800, Liu Song wrote:
> > From: Liu Song <liusong@linux.alibaba.com>
> >
> > Read the help information of PCI_P2PDMA through make menuconfig,
> > "Enables" is partially displayed as garbled characters, so fix it.
> >
> > Signed-off-by: Liu Song <liusong@linux.alibaba.com>
> > ---
> > drivers/pci/Kconfig | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> > index 133c732..8102b78 100644
> > --- a/drivers/pci/Kconfig
> > +++ b/drivers/pci/Kconfig
> > @@ -166,7 +166,7 @@ config PCI_P2PDMA
> > depends on ZONE_DEVICE
> > select GENERIC_ALLOCATOR
> > help
> > - Enableѕ drivers to do PCI peer-to-peer transactions to and from
> > + Enables drivers to do PCI peer-to-peer transactions to and from
>
> I see this problem ("Enables" renders as "Enable ~U" because the "s"
> is actually UTF-8 D195, CYRILLIC SMALL LETTER DZE).
>
> "file" found the following other Kconfig files that also contain
> UTF-8:
>
> drivers/pci/Kconfig
> D195 CYRILLIC SMALL LETTER DZE, which looks like "s"
> "Enables" renders as "Enable ~U"
> net/netfilter/ipvs/Kconfig
> C2A0 NO-BREAK SPACE
> renders fine
> drivers/mtd/nand/raw/Kconfig
> MTD_NAND_CAFE C389 LATIN CAPITAL LETTER E WITH ACUTE
> "CAFÉ" renders as "CAF ~I"
> drivers/mtd/spi-nor/Kconfig
> MTD_SPI_NOR_USE_4K_SECTORS
> "16 × 4 KiB" renders as "16 ~W 4 KiB"
> drivers/net/can/usb/Kconfig
> drivers/net/can/peak_canfd/Kconfig
> drivers/gpu/drm/panel/Kconfig
> drivers/platform/mellanox/Kconfig
> kernel/time/Kconfig
> crypto/Kconfig
> arch/Kconfig
>
> Some of these are clearly wrong (Cyrillic letter), some are
> unnecessary (non-breakable space), some are arguable ("CAFÉ" and "16 ×
> 4 KiB" -- these take advantage of UTF-8 in useful ways).
>
> Not being a charset guru, I dunno if the rendering problem means
> my terminal is set incorrectly or if they all need to be changed.
>
> But I think we should address all of them at the same time. If we do
> need to avoid UTF-8 in Kconfig help, maybe checkpatch should look for
> it.

Any progress on this problem? I certainly agree that it should be
fixed; I would just like to fix all the problems, not just the PCI
one.

Bjorn

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