LinuxPPC-Dev Archive on lore.kernel.org
 help / color / Atom feed
From: chengang@emindsoft.com.cn
To: akpm@linux-foundation.org, benh@kernel.crashing.org, paulus@samba.org
Cc: mpe@ellerman.id.au, dave.hansen@linux.intel.com,
	tglx@linutronix.de, mingo@kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	Chen Gang <chengang@emindsoft.com.cn>,
	Chen Gang <gang.chen.5i5j@gmail.com>
Subject: [PATCH v2] include: mman: Use bool instead of int for the return value of arch_validate_prot
Date: Sun, 24 Jul 2016 11:43:35 +0800
Message-ID: <1469331815-2026-1-git-send-email-chengang@emindsoft.com.cn> (raw)

From: Chen Gang <chengang@emindsoft.com.cn>

For pure bool function's return value, bool is a little better more or
less than int.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 arch/powerpc/include/asm/mman.h | 8 ++++----
 include/linux/mman.h            | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/include/asm/mman.h b/arch/powerpc/include/asm/mman.h
index 2563c43..fc420ce 100644
--- a/arch/powerpc/include/asm/mman.h
+++ b/arch/powerpc/include/asm/mman.h
@@ -31,13 +31,13 @@ static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
 }
 #define arch_vm_get_page_prot(vm_flags) arch_vm_get_page_prot(vm_flags)
 
-static inline int arch_validate_prot(unsigned long prot)
+static inline bool arch_validate_prot(unsigned long prot)
 {
 	if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_SAO))
-		return 0;
+		return false;
 	if ((prot & PROT_SAO) && !cpu_has_feature(CPU_FTR_SAO))
-		return 0;
-	return 1;
+		return false;
+	return true;
 }
 #define arch_validate_prot(prot) arch_validate_prot(prot)
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 33e17f6..634c4c5 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -49,7 +49,7 @@ static inline void vm_unacct_memory(long pages)
  *
  * Returns true if the prot flags are valid
  */
-static inline int arch_validate_prot(unsigned long prot)
+static inline bool arch_validate_prot(unsigned long prot)
 {
 	return (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM)) == 0;
 }
-- 
1.9.3

             reply index

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-24  3:43 chengang [this message]
2016-07-25  5:10 ` Michael Ellerman
2016-07-26  0:08   ` Andrew Morton
2016-07-26  1:15     ` 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=1469331815-2026-1-git-send-email-chengang@emindsoft.com.cn \
    --to=chengang@emindsoft.com.cn \
    --cc=akpm@linux-foundation.org \
    --cc=benh@kernel.crashing.org \
    --cc=dave.hansen@linux.intel.com \
    --cc=gang.chen.5i5j@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=mingo@kernel.org \
    --cc=mpe@ellerman.id.au \
    --cc=paulus@samba.org \
    --cc=tglx@linutronix.de \
    /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

LinuxPPC-Dev Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linuxppc-dev/0 linuxppc-dev/git/0.git

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

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.ozlabs.lists.linuxppc-dev


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