From: Firoz Khan <firoz.khan@linaro.org>
To: Thibaut Varene <T-Bone@parisc-linux.org>,
linux-parisc@vger.kernel.org,
"James E . J . Bottomley" <jejb@parisc-linux.org>,
Helge Deller <deller@gmx.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Philippe Ombredanne <pombredanne@nexb.com>,
Thomas Gleixner <tglx@linutronix.de>,
Kate Stewart <kstewart@linuxfoundation.org>
Cc: y2038@lists.linaro.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org, arnd@arndb.de,
deepa.kernel@gmail.com, marcin.juszkiewicz@linaro.org,
firoz.khan@linaro.org
Subject: [PATCH 2/4] parisc: Replace __NR_Linux_syscalls macro with __NR_syscalls
Date: Fri, 14 Sep 2018 13:56:41 +0530 [thread overview]
Message-ID: <1536913603-4584-3-git-send-email-firoz.khan@linaro.org> (raw)
In-Reply-To: <1536913603-4584-1-git-send-email-firoz.khan@linaro.org>
__NR_Linux_syscalls macro holds the number of system call exist in
PARISC architecture. This macro is currently the part of uapi/asm/
unistd.h file. We have to change the value of __NR_Linux_syscalls,
if we add or delete a system call.
One of the patch in this patch series has a script which will generate
a uapi header based on syscall.tbl file. The syscall.tbl file contains
the number of system call information. So we have two option to update
__NR_Linux_syscalls value.
1. Update __NR_Linux_syscalls in uapi/asm/unistd.h manually by counting
the no.of system calls. No need to update NR_syscalls until we
either add a new system call or delete an existing system call.
2. We can keep this feature it above mentioned script, that'll
count the number of syscalls and keep it in a generated file.
In this case we don't need to explicitly update __NR_Linux_syscalls
in asm/unistd.h file.
The 2nd option will be the recommended one. For that, I moved the
__NR_Linux_syscalls macro from uapi/asm/unistd.h to asm/unistd.h. The
macro name also changed form __NR_Linux_syscalls to __NR_syscalls for
making the name convention same across all architecture. While __NR_
syscalls isn't strictly part of the uapi, having it as part of the
generated header to simplifies the implementation.
Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
arch/parisc/include/asm/unistd.h | 2 ++
arch/parisc/include/uapi/asm/unistd.h | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index fc71edf..71417c1 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -8,6 +8,8 @@
#define SYS_ify(syscall_name) __NR_##syscall_name
+#define __NR_Linux_syscalls __NR_syscalls
+
#ifndef ASM_LINE_SEP
# define ASM_LINE_SEP ;
#endif
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e12..7532817 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,7 +366,7 @@
#define __NR_statx (__NR_Linux + 349)
#define __NR_io_pgetevents (__NR_Linux + 350)
-#define __NR_Linux_syscalls (__NR_io_pgetevents + 1)
+#define __NR_syscalls (__NR_Linux + 351)
#define LINUX_GATEWAY_ADDR 0x100
--
1.9.1
next prev parent reply other threads:[~2018-09-14 8:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 8:26 [PATCH 0/4] System call table generation support Firoz Khan
2018-09-14 8:26 ` [PATCH 1/4] parisc: Move __IGNORE* entries to non uapi header Firoz Khan
2018-09-14 8:26 ` Firoz Khan [this message]
2018-09-14 8:26 ` [PATCH 3/4] parisc: Add system call table generation support Firoz Khan
2018-09-14 8:26 ` [PATCH 4/4] parisc: uapi header and system call table file generation Firoz Khan
2018-09-23 19:48 ` [PATCH 0/4] System call table generation support Helge Deller
2018-09-24 4:13 ` Firoz Khan
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=1536913603-4584-3-git-send-email-firoz.khan@linaro.org \
--to=firoz.khan@linaro.org \
--cc=T-Bone@parisc-linux.org \
--cc=arnd@arndb.de \
--cc=deepa.kernel@gmail.com \
--cc=deller@gmx.de \
--cc=gregkh@linuxfoundation.org \
--cc=jejb@parisc-linux.org \
--cc=kstewart@linuxfoundation.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-parisc@vger.kernel.org \
--cc=marcin.juszkiewicz@linaro.org \
--cc=pombredanne@nexb.com \
--cc=tglx@linutronix.de \
--cc=y2038@lists.linaro.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).