ARM: fix build error in arch/arm/kernel/process.c

/tmp/ccJ3ssZW.s: Assembler messages:
/tmp/ccJ3ssZW.s:1952: Error: can't resolve `.text' {.text section} - `.LFB1077'

This is caused because:

	.section .data
	.section .text
	.section .text
	.previous

does not return us to the .text section, but the .data section; this
makes use of .previous dangerous if the ordering of previous sections
is not known.

Fix up the other users of .previous; .pushsection and .popsection are
a safer pairing to use than .section and .previous.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 13 insertions, 13 deletions

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 6c5cf369183b..e6a0fb0f392e 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -523,16 +523,16 @@ ENDPROC(__und_usr)
 /*
  * The out of line fixup for the ldrt above.
  */
-        .section .fixup, "ax"
+        .pushsection .fixup, "ax"
 4:      mov     pc, r9
-        .previous
-        .section __ex_table,"a"
+        .popsection
+        .pushsection __ex_table,"a"
         .long   1b, 4b
 #if __LINUX_ARM_ARCH__ >= 7
         .long   2b, 4b
         .long   3b, 4b
 #endif
-        .previous
+        .popsection
 
 /*
  * Check whether the instruction is a co-processor instruction.
@@ -679,7 +679,7 @@ do_fpe:
         .data
 ENTRY(fp_enter)
         .word   no_fp
-        .previous
+        .text
 
 ENTRY(no_fp)
         mov     pc, lr
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index c63842766229..0298286ad4ad 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -62,15 +62,15 @@ int ftrace_modify_code(unsigned long pc, unsigned char *old_code,
                 "    movne  %0, #2    \n"
                 "3:\n"
 
-                ".section .fixup, \"ax\"\n"
+                ".pushsection .fixup, \"ax\"\n"
                 "4:  mov  %0, #1  \n"
                 "    b    3b      \n"
-                ".previous\n"
+                ".popsection\n"
 
-                ".section __ex_table, \"a\"\n"
+                ".pushsection __ex_table, \"a\"\n"
                 "    .long 1b, 4b \n"
                 "    .long 2b, 4b \n"
-                ".previous\n"
+                ".popsection\n"
 
                 : "=r"(err), "=r"(replaced)
                 : "r"(pc), "r"(new), "r"(old), "0"(err), "1"(replaced)
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 0e12e0acbf26..acf5e6fdb6dc 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -355,7 +355,7 @@ EXPORT_SYMBOL(dump_fpu);
  * the thread function, and r3 points to the exit function.
  */
 extern void kernel_thread_helper(void);
-asm(    ".section .text\n"
+asm(    ".pushsection .text\n"
 "       .align\n"
 "       .type   kernel_thread_helper, #function\n"
 "kernel_thread_helper:\n"
@@ -363,11 +363,11 @@ asm(	".section .text\n"
 "       mov     lr, r3\n"
 "       mov     pc, r2\n"
 "       .size   kernel_thread_helper, . - kernel_thread_helper\n"
-"       .previous");
+"       .popsection");
 
 #ifdef CONFIG_ARM_UNWIND
 extern void kernel_thread_exit(long code);
-asm(    ".section .text\n"
+asm(    ".pushsection .text\n"
 "       .align\n"
 "       .type   kernel_thread_exit, #function\n"
 "kernel_thread_exit:\n"
@@ -377,7 +377,7 @@ asm(	".section .text\n"
 "       nop\n"
 "       .fnend\n"
 "       .size   kernel_thread_exit, . - kernel_thread_exit\n"
-"       .previous");
+"       .popsection");
 #else
 #define kernel_thread_exit      do_exit
 #endif