Messages in this thread | | | Date | Wed, 19 Oct 2022 13:53:15 +0200 | Subject | Re: [PATCH 2/2] mtd: core: set ROOT_DEV for partitions marked as root devices in DT | From | Rafał Miłecki <> |
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On 19.10.2022 13:50, Rafał Miłecki wrote: > From: Rafał Miłecki <rafal@milecki.pl> > > This adds support for "linux,root-device" binding that is used to mark > root device MTD partition. It's useful for devices using device tree > that don't have bootloader passing root info in cmdline. > > Signed-off-by: Rafał Miłecki <rafal@milecki.pl> > --- > drivers/mtd/mtdcore.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c > index 07249af4f890..034b06aff660 100644 > --- a/drivers/mtd/mtdcore.c > +++ b/drivers/mtd/mtdcore.c > @@ -28,6 +28,7 @@ > #include <linux/leds.h> > #include <linux/debugfs.h> > #include <linux/nvmem-provider.h> > +#include <linux/root_dev.h> > > #include <linux/mtd/mtd.h> > #include <linux/mtd/partitions.h> > @@ -735,6 +736,12 @@ int add_mtd_device(struct mtd_info *mtd) > not->add(mtd); > > mutex_unlock(&mtd_table_mutex); > + > + if (of_find_property(mtd_get_of_node(mtd), "linux,rootfs", NULL)) {
I forgot to re-do "format-patch" after "commit --amend". s/linux,rootfs/linux,root-device/
I'll fix that in V2 after giving this patchset some time to review.
> + pr_info("mtd: setting mtd%d (%s) as root device\n", mtd->index, mtd->name); > + ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, mtd->index); > + } > + > /* We _know_ we aren't being removed, because > our caller is still holding us here. So none > of this try_ nonsense, and no bitching about it
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