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From: Mathieu Malaterre <malat@debian.org>
To: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Mathieu Malaterre <malat@debian.org>,
	Michal Marek <michal.lkml@markovi.net>,
	linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] kbuild: Remove -Waggregate-return from scripts/Makefile.extrawarn
Date: Wed, 29 May 2019 10:04:34 +0200	[thread overview]
Message-ID: <20190529080434.1409-1-malat@debian.org> (raw)

It makes little sense to pass -Waggregate-return these days since large
part of the linux kernel rely on returning struct(s). For instance:

  ../include/linux/timekeeping.h: In function 'show_uptime':
  ../include/linux/ktime.h:91:34: error: function call has aggregate value [-Werror=aggregate-return]
   #define ktime_to_timespec64(kt)  ns_to_timespec64((kt))
                                    ^~~~~~~~~~~~~~~~~~~~~~
  ../include/linux/timekeeping.h:166:8: note: in expansion of macro 'ktime_to_timespec64'
    *ts = ktime_to_timespec64(ktime_get_coarse_boottime());

Remove this warning from W=2 completely.

Signed-off-by: Mathieu Malaterre <malat@debian.org>
---
 scripts/Makefile.extrawarn | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 3ab8d1a303cd..98081ab300e5 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -34,7 +34,6 @@ warning-1 += $(call cc-option, -Wstringop-truncation)
 warning-1 += -Wno-missing-field-initializers
 warning-1 += -Wno-sign-compare
 
-warning-2 := -Waggregate-return
 warning-2 += -Wcast-align
 warning-2 += -Wdisabled-optimization
 warning-2 += -Wnested-externs
-- 
2.20.1

             reply	other threads:[~2019-05-29  8:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29  8:04 Mathieu Malaterre [this message]
2019-06-04 17:09 ` [PATCH] kbuild: Remove -Waggregate-return from scripts/Makefile.extrawarn Masahiro Yamada

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