From: Dave.Martin@arm.com (Dave Martin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 03/10] arm64: esr.h type fixes and cleanup
Date: Tue, 14 Jul 2015 17:53:12 +0100 [thread overview]
Message-ID: <20150714165312.GF10670@e103592.cambridge.arm.com> (raw)
In-Reply-To: <20150714155446.GE12675@leverpostej>
On Tue, Jul 14, 2015 at 04:54:46PM +0100, Mark Rutland wrote:
> On Mon, Jul 13, 2015 at 02:25:50PM +0100, Dave P Martin wrote:
> > ESR_ELx is a 32-bit register, so it is not necessary for all the
> > template values defined by esr.h to be forced to 64-bit (long).
>
> While it's potentially misleading, does forcing these to be 64-bit cause
> a real issue? If so, it would be good to mention in the commit message.
>
> Mark.
GCC (at least, >= 4.9.2) generates warnings when these values, or
expressions involving them, are assigned to 32-bit structure members.
However, Will wasn't a big fan of my original solution to this problem,
so I'll take a final look before posting the final series to see if
there's a less invasive approach.
An explicit cast at the site of the truncating assignment(s) might do
the trick.
Cheers
---Dave
[...]
> > This patch introduces a UINT() macro analogous to UL(), and applies
> > it consistently. (Unfortunately, the more succinct U and UI names
> > are already used in unrelated code, and cause conflicts since
> > memory.h is widely included.)
> >
> > Since this change touches many lines already, I've taken the
> > opportunity to squash some redundant parentheses and bogus
> > whitespace at the same time.
> >
> > The missing include of <asm/memory.h> (for UL(), UINT() etc.) is
> > also added.
[...]
next prev parent reply other threads:[~2015-07-14 16:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 13:25 [PATCH v2 00/10] arm64: Use BRK instruction for generic BUG traps Dave Martin
2015-07-13 13:25 ` [PATCH v2 01/10] arm64/debug: Eliminate magic number for size of BRK instruction Dave Martin
2015-07-13 14:47 ` Mark Rutland
2015-07-13 13:25 ` [PATCH v2 02/10] arm64/debug: Mask off all reserved bits from generated ESR values Dave Martin
2015-07-13 14:14 ` Mark Rutland
2015-07-13 14:22 ` Dave Martin
2015-07-13 13:25 ` [PATCH v2 03/10] arm64: esr.h type fixes and cleanup Dave Martin
2015-07-14 15:54 ` Mark Rutland
2015-07-14 16:53 ` Dave Martin [this message]
2015-07-13 13:25 ` [PATCH v2 04/10] arm64/debug: Eliminate magic number from ESR template definition Dave Martin
2015-07-13 14:16 ` Mark Rutland
2015-07-13 13:25 ` [PATCH v2 05/10] arm64/debug: More consistent naming for the BRK ESR template macro Dave Martin
2015-07-13 14:19 ` Mark Rutland
2015-07-13 13:25 ` [PATCH v2 06/10] arm64/debug: Move BRK ESR template macro into <asm/esr.h> Dave Martin
2015-07-13 14:18 ` Mark Rutland
2015-07-13 13:25 ` [PATCH v2 07/10] arm64/debug: Simplify BRK insn opcode declarations Dave Martin
2015-07-13 14:38 ` Mark Rutland
2015-07-13 13:25 ` [PATCH v2 08/10] arm64/debug: Add missing #include Dave Martin
2015-07-13 14:34 ` Mark Rutland
2015-07-13 14:44 ` Dave Martin
2015-07-13 14:45 ` Mark Rutland
2015-07-13 13:25 ` [PATCH v2 09/10] arm64/BUG: Use BRK instruction for generic BUG traps Dave Martin
2015-07-13 16:43 ` Mark Rutland
2015-07-13 16:51 ` Dave Martin
2015-07-13 16:56 ` Mark Rutland
2015-07-13 17:05 ` Dave P Martin
2015-07-14 10:20 ` Dave Martin
2015-07-14 11:09 ` Mark Rutland
2015-07-14 11:34 ` Dave Martin
2015-07-14 15:51 ` Mark Rutland
2015-07-14 16:53 ` Dave Martin
2015-07-14 16:11 ` Catalin Marinas
2015-07-14 16:55 ` Dave Martin
2015-07-13 13:25 ` [PATCH v2 10/10] arm64/BUG: Show explicit backtrace for WARNs Dave Martin
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