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From:   Firoz Khan <firoz.khan@linaro.org>
To:     linux-alpha@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
        Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
        Matt Turner <mattst88@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Philippe Ombredanne <pombredanne@nexb.com>,
        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 v2 2/5] alpha: remove CONFIG_OSF4_COMPAT flag from syscall table
Date:   Thu,  1 Nov 2018 19:13:34 +0530
Message-Id: <1541079817-3431-3-git-send-email-firoz.khan@linaro.org>
In-Reply-To: <1541079817-3431-1-git-send-email-firoz.khan@linaro.org>
References: <1541079817-3431-1-git-send-email-firoz.khan@linaro.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Remove CONFIG_OSF4_COMPAT config flag from system call
table - systbls.S and to keep the same feature, add the
flag in osf_sys.c.

One of the patch in this patch series will generate the
system call table file. In order to come up with a common
implementation across all architecture, we need this change.

Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
---
 arch/alpha/kernel/osf_sys.c | 9 ++++++---
 arch/alpha/kernel/systbls.S | 5 -----
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index cff52d8..4a147bf 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1343,7 +1343,6 @@ struct timex32 {
 }
 
 #ifdef CONFIG_OSF4_COMPAT
-
 /* Clear top 32 bits of iov_len in the user's buffer for
    compatibility with old versions of OSF/1 where iov_len
    was defined as int. */
@@ -1360,27 +1359,31 @@ struct timex32 {
 	}
 	return 0;
 }
+#endif
 
 SYSCALL_DEFINE3(osf_readv, unsigned long, fd,
 		const struct iovec __user *, vector, unsigned long, count)
 {
+#ifdef CONFIG_OSF4_COMPAT
 	if (unlikely(personality(current->personality) == PER_OSF4))
 		if (osf_fix_iov_len(vector, count))
 			return -EFAULT;
+#endif
+
 	return sys_readv(fd, vector, count);
 }
 
 SYSCALL_DEFINE3(osf_writev, unsigned long, fd,
 		const struct iovec __user *, vector, unsigned long, count)
 {
+#ifdef CONFIG_OSF4_COMPAT
 	if (unlikely(personality(current->personality) == PER_OSF4))
 		if (osf_fix_iov_len(vector, count))
 			return -EFAULT;
+#endif
 	return sys_writev(fd, vector, count);
 }
 
-#endif
-
 SYSCALL_DEFINE2(osf_getpriority, int, which, int, who)
 {
 	int prio = sys_getpriority(which, who);
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 1374e59..fcf2f60 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -132,13 +132,8 @@ sys_call_table:
 	.quad sys_osf_getrusage
 	.quad sys_getsockopt
 	.quad alpha_ni_syscall
-#ifdef CONFIG_OSF4_COMPAT
 	.quad sys_osf_readv			/* 120 */
 	.quad sys_osf_writev
-#else
-	.quad sys_readv				/* 120 */
-	.quad sys_writev
-#endif
 	.quad sys_osf_settimeofday
 	.quad sys_fchown
 	.quad sys_fchmod
-- 
1.9.1