From: Erik van der Kouwe <erik@minix3.org>
Date: Thu, 9 Jun 2011 05:06:34 +0000 (+0000)
Subject: Remove unused duplicate grant code in umap
X-Git-Tag: v3.2.0~540
X-Git-Url: http://zhaoyanbai.com/repos/doc/roff.7.html?a=commitdiff_plain;h=b08dff601192ce08c265e7a2f1eab3ab39d8b198;p=minix.git

Remove unused duplicate grant code in umap
---

diff --git a/kernel/arch/i386/memory.c b/kernel/arch/i386/memory.c
index f8c1d25d9..39c3f28f8 100644
--- a/kernel/arch/i386/memory.c
+++ b/kernel/arch/i386/memory.c
@@ -350,10 +350,6 @@ vir_bytes bytes;                /* # of bytes to be copied */
 	vir_bytes linear;
 	u32_t phys = 0;
 
-	if(seg == MEM_GRANT) {
-		return umap_grant(rp, (cp_grant_id_t) vir_addr, bytes);
-	}
-	
 	if(!(linear = umap_local(rp, seg, vir_addr, bytes))) {
 			printf("SYSTEM:umap_virtual: umap_local failed\n");
 			phys = 0;
diff --git a/kernel/proto.h b/kernel/proto.h
index 925839099..5356ac7b0 100644
--- a/kernel/proto.h
+++ b/kernel/proto.h
@@ -84,7 +84,6 @@ _PROTOTYPE( void kernel_call, (message *m_user, struct proc * caller)	);
 _PROTOTYPE( void system_init, (void)					);
 #define numap_local(proc_nr, vir_addr, bytes) \
 	umap_local(proc_addr(proc_nr), D, (vir_addr), (bytes))
-_PROTOTYPE( phys_bytes umap_grant, (struct proc *, cp_grant_id_t, vir_bytes));
 _PROTOTYPE( void clear_endpoint, (struct proc *rc)			);
 _PROTOTYPE( void clear_ipc_refs, (struct proc *rc, int caller_ret)	);
 _PROTOTYPE( phys_bytes umap_bios, (vir_bytes vir_addr, vir_bytes bytes));
diff --git a/kernel/system.c b/kernel/system.c
index c40a5016c..ce10b9a8b 100644
--- a/kernel/system.c
+++ b/kernel/system.c
@@ -478,45 +478,6 @@ vir_bytes bytes;		/* # of bytes to be copied */
 }
 #endif
 
-/*===========================================================================*
- *                              umap_grant                                   *
- *===========================================================================*/
-PUBLIC phys_bytes umap_grant(rp, grant, bytes)
-struct proc *rp;                /* pointer to proc table entry for process */
-cp_grant_id_t grant;            /* grant no. */
-vir_bytes bytes;                /* size */
-{
-        int proc_nr;
-        vir_bytes offset, ret;
-        endpoint_t granter;
-
-        /* See if the grant in that process is sensible, and 
-         * find out the virtual address and (optionally) new
-         * process for that address.
-         *
-         * Then convert that process to a slot number.
-         */
-        if(verify_grant(rp->p_endpoint, ANY, grant, bytes, 0, 0,
-                &offset, &granter) != OK) {
-		printf("SYSTEM: umap_grant: verify_grant failed\n");
-                return 0;
-        }
-
-        if(!isokendpt(granter, &proc_nr)) {
-		printf("SYSTEM: umap_grant: isokendpt failed\n");
-                return 0;
-        }
- 
-        /* Do the mapping from virtual to physical. */
-        ret = umap_virtual(proc_addr(proc_nr), D, offset, bytes);
-	if(!ret) {
-		printf("SYSTEM:umap_grant:umap_virtual failed; grant %s:%d -> %s: vir 0x%lx\n",
-			rp->p_name, grant, 
-			proc_addr(proc_nr)->p_name, offset);
-	}
-	return ret;
-}
-
 /*===========================================================================*
  *			         clear_ipc				     *
  *===========================================================================*/