On Thu, 2013-08-08 at 20:18 +0800, Tang Chen wrote:
> Hi Joe,
Hello Tang.
> On 08/08/2013 01:27 PM, Joe Perches wrote:
> > On Thu, 2013-08-08 at 13:03 +0800, Tang Chen wrote:
> >
> >> Change it to the style like other macros:
> >>
> >> #define INVALID_TABLE(x, path, name) \
> >> do { pr_err("ACPI OVERRIDE: " x " [%s%s]\n", path, name); } while (0)
> >
> > Single statement macros do _not_ need to use
> > "do { foo(); } while (0)"
> > and should be written as
> > "foo()"
>
> OK, will remove the do {} while (0).
>
> But I think we'd better keep the macro, or rename it to something
> more meaningful. At least we can use it to avoid adding "ACPI OVERRIDE:"
> prefix every time. Maybe this is why it is defined.
No, it's just silly.
If you really think that the #define is better, use
something like HW_ERR does and embed that #define
in the pr_err.
#define ACPI_OVERRIDE "ACPI OVERRIDE: "
pr_err(ACPI_OVERRIDE "Table smaller than ACPI header [%s%s]\n",
cpio_path, file.name);
It's only used a few times by a single file so
I think it's unnecessary.
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