From: Michael Ellerman <mpe@ellerman.id.au>
To: Mathieu Malaterre <malat@debian.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>, Jiri Slaby <jslaby@suse.com>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 01/21] powerpc: Remove warning on array size when empty
Date: Thu, 01 Mar 2018 20:33:38 +1100 [thread overview]
Message-ID: <87a7vs87il.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <CA+7wUsxsZrjHY8=TSUiMEgGMm72XyQRW47b7oqNjFGeFKLMd+w@mail.gmail.com>
Mathieu Malaterre <malat@debian.org> writes:
> On Thu, Mar 1, 2018 at 3:55 AM, Michael Ellerman <mpe@ellerman.id.au> wrote:
>> Mathieu Malaterre <malat@debian.org> writes:
>>
>>> When neither CONFIG_ALTIVEC, nor CONFIG_VSX or CONFIG_PPC64 is defined, the
>>> array feature_properties is defined as an empty array, which in turn
>>> triggers the following warning (treated as error on W=1):
>>>
>>> CC arch/powerpc/kernel/prom.o
>>> arch/powerpc/kernel/prom.c: In function ‘check_cpu_feature_properties’:
>>> arch/powerpc/kernel/prom.c:298:16: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
>>> for (i = 0; i < ARRAY_SIZE(feature_properties); ++i, ++fp) {
>>> ^
>>> cc1: all warnings being treated as errors
>>
>> Ugh, that's annoying.
>>
>> This seems to work?
>>
>> diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
>> index 4dffef947b8a..5215119e249c 100644
>> --- a/arch/powerpc/kernel/prom.c
>> +++ b/arch/powerpc/kernel/prom.c
>> @@ -291,11 +291,11 @@ static inline void identical_pvr_fixup(unsigned long node)
>>
>> static void __init check_cpu_feature_properties(unsigned long node)
>> {
>> - unsigned long i;
>> struct feature_property *fp = feature_properties;
>> const __be32 *prop;
>> + int i;
>>
>> - for (i = 0; i < ARRAY_SIZE(feature_properties); ++i, ++fp) {
>> + for (i = 0; i < (int)ARRAY_SIZE(feature_properties); ++i, ++fp) {
>> prop = of_get_flat_dt_prop(node, fp->name, NULL);
>> if (prop && be32_to_cpup(prop) >= fp->min_value) {
>> cur_cpu_spec->cpu_features |= fp->cpu_feature;
>>
>
> Indeed that looks like the less invasive solution, I'll re-submit.
Thanks.
> Should I resubmit the entire patch series (21 indep patches) or
> re-submit only the 3 patches that were discussed (as part of a
> different series) ?
Just resubmit the ones that need changes. You can either send them as a
new series of 3, or post each as a reply to the original patch with v2
in the subject.
cheers
next prev parent reply other threads:[~2018-03-01 9:33 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-25 17:22 [PATCH 00/21] powerpc/gamecube: make W=1 compilation errors free Mathieu Malaterre
2018-02-25 17:22 ` [PATCH 01/21] powerpc: Remove warning on array size when empty Mathieu Malaterre
2018-02-25 18:53 ` Segher Boessenkool
2018-02-26 14:44 ` Andy Shevchenko
2018-02-26 14:45 ` Andy Shevchenko
2018-02-27 7:25 ` Mathieu Malaterre
2018-02-27 7:33 ` Christophe LEROY
2018-02-27 7:44 ` Mathieu Malaterre
2018-02-27 15:52 ` Andy Shevchenko
2018-02-27 17:25 ` Mathieu Malaterre
2018-02-27 20:42 ` Segher Boessenkool
2018-02-28 15:50 ` Andy Shevchenko
2018-03-01 2:55 ` Michael Ellerman
2018-03-01 7:01 ` Mathieu Malaterre
2018-03-01 9:33 ` Michael Ellerman [this message]
2018-03-02 19:49 ` [PATCH v2 " Mathieu Malaterre
2018-03-14 9:28 ` [v2,01/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 02/21] powerpc: Move the inline keyword at the beginning of function declaration Mathieu Malaterre
2018-03-14 9:27 ` [02/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 03/21] powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused Mathieu Malaterre
2018-03-04 10:54 ` Michael Ellerman
2018-03-10 18:08 ` Mathieu Malaterre
2018-02-25 17:22 ` [PATCH 04/21] powerpc: Mark both tmp variables as unused Mathieu Malaterre
2018-03-14 9:27 ` [04/21] " Michael Ellerman
2018-03-14 10:38 ` [PATCH 04/21] " Christophe LEROY
2018-03-16 14:08 ` Michael Ellerman
2018-02-25 17:22 ` [PATCH 05/21] powerpc: Avoid comparison of unsigned long >= 0 in pfn_valid Mathieu Malaterre
2018-02-26 6:32 ` Christophe LEROY
2018-02-26 7:49 ` Mathieu Malaterre
2018-02-26 8:46 ` Segher Boessenkool
2018-03-02 19:54 ` Mathieu Malaterre
2018-03-03 7:45 ` christophe leroy
2018-03-04 10:55 ` Michael Ellerman
2018-03-04 19:46 ` christophe leroy
2018-03-07 20:34 ` [PATCH v2 " Mathieu Malaterre
2018-03-14 9:28 ` [v2, " Michael Ellerman
2018-02-25 17:22 ` [PATCH 06/21] powerpc: Avoid comparison of unsigned long >= 0 in __access_ok Mathieu Malaterre
2018-02-26 6:34 ` Christophe LEROY
2018-02-26 6:50 ` Christophe LEROY
2018-02-26 7:44 ` Mathieu Malaterre
2018-02-26 17:50 ` Mathieu Malaterre
2018-02-26 20:00 ` christophe leroy
2018-02-26 22:17 ` Segher Boessenkool
2018-03-02 19:50 ` [PATCH v2 " Mathieu Malaterre
2018-03-03 7:44 ` christophe leroy
2018-03-14 9:28 ` [v2, " Michael Ellerman
2018-02-25 17:22 ` [PATCH 07/21] powerpc: Make functions flipper_pic_init & ug_udbg_putc static Mathieu Malaterre
2018-03-14 9:27 ` [07/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 08/21] powerpc: Make function __giveup_fpu static Mathieu Malaterre
2018-03-14 9:28 ` [08/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 09/21] powerpc: Make function save_all static Mathieu Malaterre
2018-02-25 17:22 ` [PATCH 10/21] powerpc: Add missing prototype for slb_miss_bad_addr Mathieu Malaterre
2018-03-14 9:27 ` [10/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 11/21] powerpc: Add missing prototype for hdec_interrupt Mathieu Malaterre
2018-03-14 9:27 ` [11/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 12/21] powerpc: Add missing prototype for time_init Mathieu Malaterre
2018-03-14 9:27 ` [12/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 13/21] powerpc: Add missing prototype for arch_dup_task_struct Mathieu Malaterre
2018-03-14 9:27 ` [13/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 14/21] powerpc: Add missing prototype for arch_irq_work_raise Mathieu Malaterre
2018-03-14 9:27 ` [14/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 15/21] powerpc: Add missing prototype for MMU_setup Mathieu Malaterre
2018-03-04 10:54 ` Michael Ellerman
2018-03-07 20:32 ` [PATCH v2 15/21] powerpc: Make function MMU_setup static Mathieu Malaterre
2018-03-14 9:28 ` [v2,15/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 16/21] powerpc: Add missing prototype for init_IRQ Mathieu Malaterre
2018-03-14 9:28 ` [16/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 17/21] powerpc: Add missing prototype for sys_debug_setcontext Mathieu Malaterre
2018-03-04 10:54 ` Michael Ellerman
2018-03-07 20:37 ` Mathieu Malaterre
2018-03-08 10:36 ` Michael Ellerman
2018-03-26 18:56 ` Mathieu Malaterre
2018-03-27 8:50 ` Michael Ellerman
2018-03-14 9:28 ` [17/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 18/21] powerpc: Add missing prototypes for sys_sigreturn & sys_rt_sigreturn Mathieu Malaterre
2018-03-14 9:28 ` [18/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 19/21] powerpc: Add missing prototypes for hw_breakpoint_handler & arch_unregister_hw_breakpoint Mathieu Malaterre
2018-03-14 9:28 ` [19/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 20/21] powerpc: Add missing prototypes for ppc_select & ppc_fadvise64_64 Mathieu Malaterre
2018-03-14 9:28 ` [20/21] " Michael Ellerman
2018-02-25 17:22 ` [PATCH 21/21] powerpc: Add missing prototypes in setup_32.c Mathieu Malaterre
2018-03-08 11:44 ` Michael Ellerman
2018-03-14 9:28 ` [21/21] " Michael Ellerman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87a7vs87il.fsf@concordia.ellerman.id.au \
--to=mpe@ellerman.id.au \
--cc=benh@kernel.crashing.org \
--cc=jslaby@suse.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=malat@debian.org \
--cc=paulus@samba.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).