[PATCH] frv: define MMU mode specific syscalls as 'cond_syscall' and clean up unneede...

For some architectures, a few syscalls are not linked in noMMU mode.  In
that case, the MMU depending syscalls are needed to be defined as
'cond_syscall'.  For example, ARM architecture selectively links sys_mlock
by the mode configuration.

In case of FRV, it has been managed by #ifdef CONFIG_MMU macro in
arch/frv/kernel/entry.S.  However these conditional macros are just
duplicates if they were defined as cond_syscall.  Compilation test is done
with FRV toolchains for both of MMU and noMMU mode.

Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index 1d21c8d..a9b5952 100644 (file)
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1170,12 +1170,6 @@ __syscall_badsys:
 # syscall vector table
 #
 ###############################################################################
-#ifdef CONFIG_MMU
-#define __MMU(X) X
-#else
-#define __MMU(X) sys_ni_syscall
-#endif
-
        .section .rodata
 ALIGN
        .globl          sys_call_table
@@ -1305,7 +1299,7 @@ sys_call_table:
        .long sys_newuname
        .long sys_ni_syscall    /* old "cacheflush" */
        .long sys_adjtimex
-       .long __MMU(sys_mprotect) /* 125 */
+       .long sys_mprotect      /* 125 */
        .long sys_sigprocmask
        .long sys_ni_syscall    /* old "create_module" */
        .long sys_init_module
@@ -1324,16 +1318,16 @@ sys_call_table:
        .long sys_getdents
        .long sys_select
        .long sys_flock
-       .long __MMU(sys_msync)
+       .long sys_msync
        .long sys_readv         /* 145 */
        .long sys_writev
        .long sys_getsid
        .long sys_fdatasync
        .long sys_sysctl
-       .long __MMU(sys_mlock)          /* 150 */
-       .long __MMU(sys_munlock)
-       .long __MMU(sys_mlockall)
-       .long __MMU(sys_munlockall)
+       .long sys_mlock         /* 150 */
+       .long sys_munlock
+       .long sys_mlockall
+       .long sys_munlockall
        .long sys_sched_setparam
        .long sys_sched_getparam   /* 155 */
        .long sys_sched_setscheduler
@@ -1343,7 +1337,7 @@ sys_call_table:
        .long sys_sched_get_priority_min  /* 160 */
        .long sys_sched_rr_get_interval
        .long sys_nanosleep
-       .long __MMU(sys_mremap)
+       .long sys_mremap
        .long sys_setresuid16
        .long sys_getresuid16   /* 165 */
        .long sys_ni_syscall    /* for vm86 */
@@ -1398,8 +1392,8 @@ sys_call_table:
        .long sys_setfsuid              /* 215 */
        .long sys_setfsgid
        .long sys_pivot_root
-       .long __MMU(sys_mincore)
-       .long __MMU(sys_madvise)
+       .long sys_mincore
+       .long sys_madvise
        .long sys_getdents64    /* 220 */
        .long sys_fcntl64
        .long sys_ni_syscall    /* reserved for TUX */
@@ -1437,7 +1431,7 @@ sys_call_table:
        .long sys_epoll_create
        .long sys_epoll_ctl     /* 255 */
        .long sys_epoll_wait
-       .long __MMU(sys_remap_file_pages)
+       .long sys_remap_file_pages
        .long sys_set_tid_address
        .long sys_timer_create
        .long sys_timer_settime         /* 260 */

diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index d82864c..5433195 100644 (file)
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -120,3 +120,15 @@ cond_syscall(sys32_sysctl);
 cond_syscall(ppc_rtas);
 cond_syscall(sys_spu_run);
 cond_syscall(sys_spu_create);
+
+/* mmu depending weak syscall entries */
+cond_syscall(sys_mprotect);
+cond_syscall(sys_msync);
+cond_syscall(sys_mlock);
+cond_syscall(sys_munlock);
+cond_syscall(sys_mlockall);
+cond_syscall(sys_munlockall);
+cond_syscall(sys_mincore);
+cond_syscall(sys_madvise);
+cond_syscall(sys_mremap);
+cond_syscall(sys_remap_file_pages);