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Message-ID: <20161216214047.GA90306@beast>
Date: Fri, 16 Dec 2016 13:40:47 -0800
From: Kees Cook <keescook@...omium.org>
To: Karsten Keil <isdn@...ux-pingi.de>
Cc: linux-kernel@...r.kernel.org, Emese Revfy <re.emese@...il.com>,
netdev@...r.kernel.org
Subject: [PATCH] isdn: Constify some function parameters
From: Emese Revfy <re.emese@...il.com>
The coming initify gcc plugin expects const pointer types, and caught
some __printf arguments that weren't const yet. This fixes those.
Signed-off-by: Emese Revfy <re.emese@...il.com>
[kees: expanded commit message]
Signed-off-by: Kees Cook <keescook@...omium.org>
---
drivers/isdn/hisax/config.c | 16 ++++++++--------
drivers/isdn/hisax/hisax.h | 4 ++--
2 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index bf04d2a3cf4a..2d12c6ceeb89 100644
--- a/drivers/isdn/hisax/config.c
+++ b/drivers/isdn/hisax/config.c
@@ -659,7 +659,7 @@ int jiftime(char *s, long mark)
static u_char tmpbuf[HISAX_STATUS_BUFSIZE];
-void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt,
+void VHiSax_putstatus(struct IsdnCardState *cs, char *head, const char *fmt,
va_list args)
{
/* if head == NULL the fmt contains the full info */
@@ -669,23 +669,24 @@ void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt,
u_char *p;
isdn_ctrl ic;
int len;
+ const u_char *data;
if (!cs) {
printk(KERN_WARNING "HiSax: No CardStatus for message");
return;
}
spin_lock_irqsave(&cs->statlock, flags);
- p = tmpbuf;
if (head) {
+ p = tmpbuf;
p += jiftime(p, jiffies);
p += sprintf(p, " %s", head);
p += vsprintf(p, fmt, args);
*p++ = '\n';
*p = 0;
len = p - tmpbuf;
- p = tmpbuf;
+ data = tmpbuf;
} else {
- p = fmt;
+ data = fmt;
len = strlen(fmt);
}
if (len > HISAX_STATUS_BUFSIZE) {
@@ -699,13 +700,12 @@ void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt,
if (i >= len)
i = len;
len -= i;
- memcpy(cs->status_write, p, i);
+ memcpy(cs->status_write, data, i);
cs->status_write += i;
if (cs->status_write > cs->status_end)
cs->status_write = cs->status_buf;
- p += i;
if (len) {
- memcpy(cs->status_write, p, len);
+ memcpy(cs->status_write, data + i, len);
cs->status_write += len;
}
#ifdef KERNELSTACK_DEBUG
@@ -729,7 +729,7 @@ void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt,
}
}
-void HiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt, ...)
+void HiSax_putstatus(struct IsdnCardState *cs, char *head, const char *fmt, ...)
{
va_list args;
diff --git a/drivers/isdn/hisax/hisax.h b/drivers/isdn/hisax/hisax.h
index 6ead6314e6d2..338d0408b377 100644
--- a/drivers/isdn/hisax/hisax.h
+++ b/drivers/isdn/hisax/hisax.h
@@ -1288,9 +1288,9 @@ int jiftime(char *s, long mark);
int HiSax_command(isdn_ctrl *ic);
int HiSax_writebuf_skb(int id, int chan, int ack, struct sk_buff *skb);
__printf(3, 4)
-void HiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt, ...);
+void HiSax_putstatus(struct IsdnCardState *cs, char *head, const char *fmt, ...);
__printf(3, 0)
-void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt, va_list args);
+void VHiSax_putstatus(struct IsdnCardState *cs, char *head, const char *fmt, va_list args);
void HiSax_reportcard(int cardnr, int sel);
int QuickHex(char *txt, u_char *p, int cnt);
void LogFrame(struct IsdnCardState *cs, u_char *p, int size);
--
2.7.4
--
Kees Cook
Nexus Security
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