From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELs3ptKt1Dg1x0gjMC8lT6z3lB9snb89UuXLAP/K0CMMV6rQtwt7IvQMDm0EvTwMZppG24ee ARC-Seal: i=1; a=rsa-sha256; t=1519411745; cv=none; d=google.com; s=arc-20160816; b=Wyn9xbfvgn8k2wHi2vWT2XIB6mvYMV7oox2b0vZ/lvG+YFgoaeBEWBb3DYQ/nPoz1n T7VPZgX3XWxpikhAATAb1gusJNiMj7+f9bs7zb7CDAaw2pMKNpUv4/HgkrT7DQ1kTgqo a7PreFHfs4wmIfFDDY5HSTFxedji5M8zzOdiIzLGgiNz1WRFxn9hHwQAz0MMVpE/09sw lMtHWRIt0BhtKovrCGF6c0qhRI/mEXq5Z861RFBXx28V3DkhdhluPw2v9rFw7sjLmFJa yaEe4sdhFKe4xis7sGz4cg2lVh3h3i5ELyMxF/HSyD1FXw2aTO2y3qdN5ks+hzmHr2ay 9Odg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=59Sdscd+OePbmQsuCO84mUj0y2gKVI3/DPAgnua/sfM=; b=LKygP/ORu4IMYu5a/64k4rFYKzkAAivKmWAsuOrYXMOQlUT+iwtsJ+Lkf8pYe6HCSH 3vOUErhtK/eNoAtfKVFjsre+5su54IIxR5dyAwlMk0wIUXWIbImggWkWVnzKyvlTwSpo uRPlnJGv+4WsqrhyuK1hhgIkP+QvepVbGzFntrpslhwCH2vqTjgreKCkHIqW81B9UEAG qVklwzVIrr8kaZBJPWIIWtCyg0KEtHgIIn1ZNPDoyjtGXQdkfsC02KVvsr8eZW/0MFQ8 QaGdxUzzx2y7749WugUULw8jVkmZ+kdRcSix2rU4JhYNI5NJK3DlDq91lYp7uhDirubx euIQ== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.71.90 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?J=C3=A9r=C3=A9my=20Lefaure?= , Hugh Dickins , Andrew Morton , Linus Torvalds Subject: [PATCH 4.9 126/145] shmem: fix compilation warnings on unused functions Date: Fri, 23 Feb 2018 19:27:12 +0100 Message-Id: <20180223170741.140492106@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180223170724.669759283@linuxfoundation.org> References: <20180223170724.669759283@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1593218690445037907?= X-GMAIL-MSGID: =?utf-8?q?1593218690445037907?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jérémy Lefaure commit f1f5929cd9715c1cdfe07a890f12ac7d2c5304ec upstream. Compiling shmem.c with SHMEM and TRANSAPRENT_HUGE_PAGECACHE enabled raises warnings on two unused functions when CONFIG_TMPFS and CONFIG_SYSFS are both disabled: mm/shmem.c:390:20: warning: `shmem_format_huge' defined but not used [-Wunused-function] static const char *shmem_format_huge(int huge) ^~~~~~~~~~~~~~~~~ mm/shmem.c:373:12: warning: `shmem_parse_huge' defined but not used [-Wunused-function] static int shmem_parse_huge(const char *str) ^~~~~~~~~~~~~~~~ A conditional compilation on tmpfs or sysfs removes the warnings. Link: http://lkml.kernel.org/r/20161118055749.11313-1-jeremy.lefaure@lse.epita.fr Signed-off-by: Jérémy Lefaure Acked-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- mm/shmem.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/shmem.c +++ b/mm/shmem.c @@ -370,6 +370,7 @@ static bool shmem_confirm_swap(struct ad int shmem_huge __read_mostly; +#if defined(CONFIG_SYSFS) || defined(CONFIG_TMPFS) static int shmem_parse_huge(const char *str) { if (!strcmp(str, "never")) @@ -407,6 +408,7 @@ static const char *shmem_format_huge(int return "bad_val"; } } +#endif static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo, struct shrink_control *sc, unsigned long nr_to_split)