mtd/uclinux: Use generic __bss_stop instead of _ebss

The standard (see BSS_SECTION() in <asm-generic/vmlinux.lds.h> and
<asm-generic/sections.h>) symbol for the end of BSS is __bss_stop.
This allows to remove all local declarations that have been added to
several architectures just to please CONFIG_MTD_UCLINUX.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Greg Ungerer <gerg@uclinux.org>

5 files changed, 4 insertions, 9 deletions

diff --git a/arch/sh/include/asm/sections.h b/arch/sh/include/asm/sections.h
index 4a5350037c8f..1b6199740e98 100644
--- a/arch/sh/include/asm/sections.h
+++ b/arch/sh/include/asm/sections.h
@@ -6,7 +6,6 @@
 extern long __nosave_begin, __nosave_end;
 extern long __machvec_start, __machvec_end;
 extern char __uncached_start, __uncached_end;
-extern char _ebss[];
 extern char __start_eh_frame[], __stop_eh_frame[];
 
 #endif /* __ASM_SH_SECTIONS_H */
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 7b57bf1dc855..ebe7a7d97215 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -273,7 +273,7 @@ void __init setup_arch(char **cmdline_p)
         data_resource.start = virt_to_phys(_etext);
         data_resource.end = virt_to_phys(_edata)-1;
         bss_resource.start = virt_to_phys(__bss_start);
-        bss_resource.end = virt_to_phys(_ebss)-1;
+        bss_resource.end = virt_to_phys(__bss_stop)-1;
 
 #ifdef CONFIG_CMDLINE_OVERWRITE
         strlcpy(command_line, CONFIG_CMDLINE, sizeof(command_line));
diff --git a/arch/sh/kernel/sh_ksyms_32.c b/arch/sh/kernel/sh_ksyms_32.c
index 3896f26efa4a..2a0a596ebf67 100644
--- a/arch/sh/kernel/sh_ksyms_32.c
+++ b/arch/sh/kernel/sh_ksyms_32.c
@@ -19,7 +19,6 @@ EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(csum_partial_copy_generic);
 EXPORT_SYMBOL(copy_page);
 EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(_ebss);
 EXPORT_SYMBOL(empty_zero_page);
 
 #define DECLARE_EXPORT(name)            \
diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S
index c98905f71e28..db88cbf9eafd 100644
--- a/arch/sh/kernel/vmlinux.lds.S
+++ b/arch/sh/kernel/vmlinux.lds.S
@@ -78,7 +78,6 @@ SECTIONS
         . = ALIGN(PAGE_SIZE);
         __init_end = .;
         BSS_SECTION(0, PAGE_SIZE, 4)
-        _ebss = .;                      /* uClinux MTD sucks */
         _end = . ;
 
         STABS_DEBUG
diff --git a/arch/sh/lib/mcount.S b/arch/sh/lib/mcount.S
index 84a57761f17e..60164e65d665 100644
--- a/arch/sh/lib/mcount.S
+++ b/arch/sh/lib/mcount.S
@@ -39,7 +39,7 @@
  *
  * Make sure the stack pointer contains a valid address. Valid
  * addresses for kernel stacks are anywhere after the bss
- * (after _ebss) and anywhere in init_thread_union (init_stack).
+ * (after __bss_stop) and anywhere in init_thread_union (init_stack).
  */
 #define STACK_CHECK()                                   \
         mov     #(THREAD_SIZE >> 10), r0;               \
@@ -60,7 +60,7 @@
         cmp/hi  r2, r1;                                 \
         bf      stack_panic;                            \
                                                         \
-        /* If sp > _ebss then we're OK. */              \
+        /* If sp > __bss_stop then we're OK. */         \
         mov.l   .L_ebss, r1;                            \
         cmp/hi  r1, r15;                                \
         bt      1f;                                     \
@@ -70,7 +70,7 @@
         cmp/hs  r1, r15;                                \
         bf      stack_panic;                            \
                                                         \
-        /* If sp > init_stack && sp < _ebss, not OK. */ \
+        /* If sp > init_stack && sp < __bss_stop, not OK. */    \
         add     r0, r1;                                 \
         cmp/hs  r1, r15;                                \
         bt      stack_panic;                            \
@@ -292,8 +292,6 @@ stack_panic:
          nop
 
         .align 2
-.L_ebss:
-        .long   _ebss
 .L_init_thread_union:
         .long   init_thread_union
 .Lpanic: