LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Arnd Bergmann <arnd@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>,
	Nathan Chancellor <natechancellor@gmail.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Petteri Aimonen <jpa@git.mail.kapsi.fi>,
	Borislav Petkov <bp@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: [PATCH] selftest/fpu: avoid clang warning
Date: Thu,  3 Dec 2020 23:36:30 +0100
Message-ID: <20201203223652.1320700-1-arnd@kernel.org> (raw)

From: Arnd Bergmann <arnd@arndb.de>

With extra warnings enabled, clang complains about the redundant
-mhard-float argument:

clang: error: argument unused during compilation: '-mhard-float' [-Werror,-Wunused-command-line-argument]

Move this into the gcc-only part of the Makefile.

Fixes: 4185b3b92792 ("selftests/fpu: Add an FPU selftest")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 lib/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Makefile b/lib/Makefile
index 985c6a8909e0..dc623561ef9d 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -107,7 +107,7 @@ obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o
 # off the generation of FPU/SSE* instructions for kernel proper but FPU_FLAGS
 # get appended last to CFLAGS and thus override those previous compiler options.
 #
-FPU_CFLAGS := -mhard-float -msse -msse2
+FPU_CFLAGS := -msse -msse2
 ifdef CONFIG_CC_IS_GCC
 # Stack alignment mismatch, proceed with caution.
 # GCC < 7.1 cannot compile code using `double` and -mpreferred-stack-boundary=3
@@ -120,6 +120,7 @@ ifdef CONFIG_CC_IS_GCC
 #  -mpreferred-stack-boundary=3 is not between 4 and 12
 #
 # can be triggered. Otherwise gcc doesn't complain.
+FPU_CFLAGS += -mhard-float
 FPU_CFLAGS += $(call cc-option,-msse -mpreferred-stack-boundary=3,-mpreferred-stack-boundary=4)
 endif
 
-- 
2.27.0


                 reply index

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=20201203223652.1320700-1-arnd@kernel.org \
    --to=arnd@kernel.org \
    --cc=akpm@linux-foundation.org \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=arnd@arndb.de \
    --cc=bp@suse.de \
    --cc=clang-built-linux@googlegroups.com \
    --cc=jpa@git.mail.kapsi.fi \
    --cc=linux-kernel@vger.kernel.org \
    --cc=natechancellor@gmail.com \
    --cc=ndesaulniers@google.com \
    /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

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git