* Re: [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le
@ 2016-03-10 9:08 Maarten Brock
2016-04-19 6:12 ` Greg Kroah-Hartman
0 siblings, 1 reply; 5+ messages in thread
From: Maarten Brock @ 2016-03-10 9:08 UTC (permalink / raw)
To: Arnd Bergmann, Greg Kroah-Hartman
Cc: Arnd Bergmann, Peter Korsgaard, Jiri Slaby, Rich Felker,
linux-serial, linux-kernel
I've created a version 2 of this patch immediately which fixes the warning,
but somehow this stays ignored.
Please apply my second patch!
Maarten
> The patch to make uartlite_be/uartlite_le const was well-intended but
> caused a new build warning:
>
> tty/serial/uartlite.c: In function 'ulite_request_port':
> tty/serial/uartlite.c:348:21: error: assignment discards 'const' qualifier
> from pointer target type [-Werror=discarded-qualifiers]
> tty/serial/uartlite.c:354:22: error: assignment discards 'const' qualifier
> from pointer target type [-Werror=discarded-qualifiers]
>
> It would be nice to allow passing const pointers through
> port->private_data, but that would be way more work, so this
> reverts part of the original commit for now.
>
> A possible alternative might be to pass a structure in the private_data
> that contains a const pointer to the operations, which introduces a little
> extra overhead, or we could just add a cast to a non-const pointer, I'll
> leave that to the maintainer.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Fixes: 2905697a82ea ("serial-uartlite: Constify uartlite_be/uartlite_le")
> ---
> drivers/tty/serial/uartlite.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
> index c9fdfc8bf47f..1474c5755140 100644
> --- a/drivers/tty/serial/uartlite.c
> +++ b/drivers/tty/serial/uartlite.c
> @@ -72,7 +72,7 @@ static void uartlite_outbe32(u32 val, void __iomem *addr)
> iowrite32be(val, addr);
> }
>
> -static const struct uartlite_reg_ops uartlite_be = {
> +static struct uartlite_reg_ops uartlite_be = {
> .in = uartlite_inbe32,
> .out = uartlite_outbe32,
> };
> @@ -87,7 +87,7 @@ static void uartlite_outle32(u32 val, void __iomem *addr)
> iowrite32(val, addr);
> }
>
> -static const struct uartlite_reg_ops uartlite_le = {
> +static struct uartlite_reg_ops uartlite_le = {
> .in = uartlite_inle32,
> .out = uartlite_outle32,
> };
> --
> 2.7.0
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le
2016-03-10 9:08 [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le Maarten Brock
@ 2016-04-19 6:12 ` Greg Kroah-Hartman
0 siblings, 0 replies; 5+ messages in thread
From: Greg Kroah-Hartman @ 2016-04-19 6:12 UTC (permalink / raw)
To: Maarten Brock
Cc: Arnd Bergmann, Peter Korsgaard, Jiri Slaby, Rich Felker,
linux-serial, linux-kernel
On Thu, Mar 10, 2016 at 10:08:01AM +0100, Maarten Brock wrote:
> I've created a version 2 of this patch immediately which fixes the warning,
> but somehow this stays ignored.
>
> Please apply my second patch!
Sorry, it was too late, my fault.
greg k-h
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le
2016-04-19 7:51 Maarten Brock
@ 2016-04-19 8:33 ` Greg Kroah-Hartman
0 siblings, 0 replies; 5+ messages in thread
From: Greg Kroah-Hartman @ 2016-04-19 8:33 UTC (permalink / raw)
To: Maarten Brock
Cc: Arnd Bergmann, Peter Korsgaard, Jiri Slaby, Rich Felker,
linux-serial, linux-kernel
On Tue, Apr 19, 2016 at 09:51:43AM +0200, Maarten Brock wrote:
> ----- Original Message -----
> From: Greg Kroah-Hartman [mailto:gregkh@linuxfoundation.org]
> To: Maarten Brock [mailto:m.brock@vanmierlo.com]
> Cc: Arnd Bergmann [mailto:arnd@arndb.de], Peter Korsgaard [mailto:jacmet@sunsite.dk], Jiri Slaby [mailto:jslaby@suse.com], Rich Felker [mailto:dalias@libc.org], linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
> Sent: Tue, 19 Apr 2016 08:12:36 +0200
> Subject: Re: [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le
>
>
> > On Thu, Mar 10, 2016 at 10:08:01AM +0100, Maarten Brock wrote:
> > > I've created a version 2 of this patch immediately which fixes the
> > > warning, but somehow this stays ignored.
> > >
> > > Please apply my second patch!
> >
> > Sorry, it was too late, my fault.
> >
> > greg k-h
>
> Hello Greg,
>
> Now that the original patch is reverted, can you apply my second version of the
> patch which includes extra casts to suppress the warnings?
Can you please resend it? I don't see it in my queue :(
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le
@ 2016-04-19 7:51 Maarten Brock
2016-04-19 8:33 ` Greg Kroah-Hartman
0 siblings, 1 reply; 5+ messages in thread
From: Maarten Brock @ 2016-04-19 7:51 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Arnd Bergmann, Peter Korsgaard, Jiri Slaby, Rich Felker,
linux-serial, linux-kernel
----- Original Message -----
From: Greg Kroah-Hartman [mailto:gregkh@linuxfoundation.org]
To: Maarten Brock [mailto:m.brock@vanmierlo.com]
Cc: Arnd Bergmann [mailto:arnd@arndb.de], Peter Korsgaard [mailto:jacmet@sunsite.dk], Jiri Slaby [mailto:jslaby@suse.com], Rich Felker [mailto:dalias@libc.org], linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Sent: Tue, 19 Apr 2016 08:12:36 +0200
Subject: Re: [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le
> On Thu, Mar 10, 2016 at 10:08:01AM +0100, Maarten Brock wrote:
> > I've created a version 2 of this patch immediately which fixes the
> > warning, but somehow this stays ignored.
> >
> > Please apply my second patch!
>
> Sorry, it was too late, my fault.
>
> greg k-h
Hello Greg,
Now that the original patch is reverted, can you apply my second version of the
patch which includes extra casts to suppress the warnings?
Maarten
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le
@ 2016-03-10 1:34 Arnd Bergmann
0 siblings, 0 replies; 5+ messages in thread
From: Arnd Bergmann @ 2016-03-10 1:34 UTC (permalink / raw)
To: Greg Kroah-Hartman
Cc: Arnd Bergmann, Peter Korsgaard, Jiri Slaby, Maarten Brock,
Rich Felker, linux-serial, linux-kernel
The patch to make uartlite_be/uartlite_le const was well-intended but
caused a new build warning:
tty/serial/uartlite.c: In function 'ulite_request_port':
tty/serial/uartlite.c:348:21: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
tty/serial/uartlite.c:354:22: error: assignment discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
It would be nice to allow passing const pointers through
port->private_data, but that would be way more work, so this
reverts part of the original commit for now.
A possible alternative might be to pass a structure in the private_data
that contains a const pointer to the operations, which introduces a little
extra overhead, or we could just add a cast to a non-const pointer, I'll
leave that to the maintainer.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 2905697a82ea ("serial-uartlite: Constify uartlite_be/uartlite_le")
---
drivers/tty/serial/uartlite.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index c9fdfc8bf47f..1474c5755140 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -72,7 +72,7 @@ static void uartlite_outbe32(u32 val, void __iomem *addr)
iowrite32be(val, addr);
}
-static const struct uartlite_reg_ops uartlite_be = {
+static struct uartlite_reg_ops uartlite_be = {
.in = uartlite_inbe32,
.out = uartlite_outbe32,
};
@@ -87,7 +87,7 @@ static void uartlite_outle32(u32 val, void __iomem *addr)
iowrite32(val, addr);
}
-static const struct uartlite_reg_ops uartlite_le = {
+static struct uartlite_reg_ops uartlite_le = {
.in = uartlite_inle32,
.out = uartlite_outle32,
};
--
2.7.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-04-19 8:33 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-03-10 9:08 [PATCH] serial-uartlite: un-constify uartlite_be/uartlite_le Maarten Brock
2016-04-19 6:12 ` Greg Kroah-Hartman
-- strict thread matches above, loose matches on Subject: below --
2016-04-19 7:51 Maarten Brock
2016-04-19 8:33 ` Greg Kroah-Hartman
2016-03-10 1:34 Arnd Bergmann
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).