From: Tomas Hruby <tom@minix3.org>
Date: Wed, 3 Feb 2010 18:17:01 +0000 (+0000)
Subject: Removed useless global variable sys_call_code
X-Git-Tag: v3.1.7~315
X-Git-Url: http://zhaoyanbai.com/repos/nsupdate.html?a=commitdiff_plain;h=8f82633fa2d62c27ef60a7467ba9c59f006c7111;p=minix.git

Removed useless global variable sys_call_code

- we have to same information in the message (m_ptr) where needed
---

diff --git a/kernel/glo.h b/kernel/glo.h
index a473aa65e..cac8fba72 100644
--- a/kernel/glo.h
+++ b/kernel/glo.h
@@ -42,7 +42,6 @@ EXTERN u32_t system_hz;				/* HZ value */
 EXTERN reg_t mon_ss, mon_sp;		/* boot monitor stack */
 EXTERN int mon_return;			/* true if we can return to monitor */
 EXTERN int do_serial_debug;
-EXTERN int sys_call_code;		/* kernel call number in SYSTEM */
 EXTERN time_t boottime;
 EXTERN char params_buffer[512];		/* boot monitor parameters */
 EXTERN int minix_panicing;
diff --git a/kernel/system.c b/kernel/system.c
index 4f064a192..b1a49f2d7 100644
--- a/kernel/system.c
+++ b/kernel/system.c
@@ -91,8 +91,7 @@ PUBLIC void sys_task()
 		minix_panic("receive() failed", r);
       } 
 
-      sys_call_code = (unsigned) m.m_type;
-      call_nr = sys_call_code - KERNEL_CALL;	
+      call_nr = m.m_type - KERNEL_CALL;
       who_e = m.m_source;
       okendpt(who_e, &who_p);
       caller_ptr = proc_addr(who_p);
diff --git a/kernel/system/do_safecopy.c b/kernel/system/do_safecopy.c
index 93fcabd50..ff39c51a3 100644
--- a/kernel/system/do_safecopy.c
+++ b/kernel/system/do_safecopy.c
@@ -337,15 +337,15 @@ PUBLIC int do_safecopy(struct proc * caller, message * m_ptr)
 	static int access, src_seg, dst_seg;
 
 	/* Set src and dst parameters. */
-	if(sys_call_code == SYS_SAFECOPYFROM) {
+	if(m_ptr->m_type == SYS_SAFECOPYFROM) {
 		src_seg = D;
 		dst_seg = m_ptr->SCP_SEG;
 		access = CPF_READ;
-	} else if(sys_call_code == SYS_SAFECOPYTO) {
+	} else if(m_ptr->m_type == SYS_SAFECOPYTO) {
 		src_seg = m_ptr->SCP_SEG;
 		dst_seg = D;
 		access = CPF_WRITE;
-	} else minix_panic("Impossible system call nr. ", sys_call_code);
+	} else minix_panic("Impossible system call nr. ", m_ptr->m_type);
 
 	return safecopy(caller, m_ptr->SCP_FROM_TO, caller->p_endpoint,
 		m_ptr->SCP_GID, src_seg, dst_seg, m_ptr->SCP_BYTES,