2018-01-18 17:56 GMT+08:00 Arnd Bergmann [off-list ref]:

On Mon, Jan 15, 2018 at 6:53 AM, Greentime Hu [off-list ref] wrote:

quoted

From: Greentime Hu <greentime-MUIXKm3Oiri1Z/+hSey0Gg@public.gmane.org>

It will be built failed if commit id: d25ea659 is selected. This patch
can fix this build error.

Signed-off-by: Greentime Hu <greentime-MUIXKm3Oiri1Z/+hSey0Gg@public.gmane.org>

The change is fine, but the reference to commit 'd25ea659' is not for
two reasons:

- when you rebase the tree, you will get a different ID
- the recommended format for referring to another commit is to list it with
  12 digits and the one-line summary like this:

   commit d25ea659bc37 ("asm-generic/io.h: move
  ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_…")

- Ideally you use a 'Fixes:' tag in the patch description.

You can add these lines in your .gitconfig to help you here

[alias]
        fixes = show --format='Fixes: %h (\"%s\")' -s
[core]
        abbrev = 12

That will give you a 'git fixes' command to output the Fixes: line
in the correct format for future bug fixes. For this particular change,
I would actually just merge the two patches into one patch that
then doesn't break anything in the first place.

Hi, Arnd:

Thank you for your comments and teaching me how to add these messages.
I will update the commit messages and my .gitconfig.

Since the commit id will be changed after rebasing, I will update the
messages like this.

sparc: io: To use the define of ioremap_[nocache|wc|wb] in asm-generic/io.h

A commit for the nds32 architecture bootstrap("asm-generic/io.h: move
ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef CONFIG_MMU")
will move the ioremap_nocache out of the CONFIG_MMU ifdef. This means that
in order to suppress re-definition errors we need to remove the #define
in io_32.h.

Also, the change adds a prototype for ioremap where size is size_t and
offset is phys_addr_t so fix that as well.

Signed-off-by: Greentime Hu <greentime-MUIXKm3Oiri1Z/+hSey0Gg@public.gmane.org>
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