[PATCH] scripts/dtc: fix '%zx' warning

[Russell King - ARM Linux]

On Thu, Aug 31, 2017 at 10:58:12AM -0500, Rob Herring wrote:
> On Tue, Aug 8, 2017 at 11:06 PM, David Gibson
> <david at gibson.dropbear.id.au> wrote:
> > On Tue, Aug 08, 2017 at 12:28:19PM +0100, Russell King - ARM Linux wrote:
> >> On Wed, Jul 26, 2017 at 11:30:04AM +1000, David Gibson wrote:
> >> > On Tue, Jul 25, 2017 at 05:20:09PM +0100, Russell King wrote:
> >> > > dtc uses an incorrect format specifier for printing a uint64_t value.
> >> > > uint64_t may be either 'unsigned long' or 'unsigned long long' depending
> >> > > on the host architecture.
> >> > >
> >> > > Fix this by using %llx and casting to unsigned long long, which ensures
> >> > > that we always have a wide enough variable to print 64 bits of hex.
> >> > >
> >> > >   HOSTCC  scripts/dtc/checks.o
> >> > > scripts/dtc/checks.c: In function 'check_simple_bus_reg':
> >> > > scripts/dtc/checks.c:876:2: warning: format '%zx' expects argument of type 'size_t', but argument 4 has type 'uint64_t' [-Wformat=]
> >> > >   snprintf(unit_addr, sizeof(unit_addr), "%zx", reg);
> >> > >   ^
> >> > > scripts/dtc/checks.c:876:2: warning: format '%zx' expects argument of type 'size_t', but argument 4 has type 'uint64_t' [-Wformat=]
> >> > >
> >> > > Fixes: 828d4cdd012c ("dtc: check.c fix compile error")
> >> > > Signed-off-by: Russell King <rmk+kernel at armlinux.org.uk>
> >> >
> >> > This (embarrassing) error is already fixed in upstream dtc.
> >>
> >> It remains unfixed in 4.13-rc4.  How do we get this fixed in the
> >> kernel's dtc?  From what I can see, sending a patch to fix stuff
> >> doesn't work.
> 
> Sorry, didn't see this until Andrew M picked it up.

How do we know whether whatever is in upstream dtc fixes the problem
that I'm seeing?

-- 
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