powerpc/ftrace: Style cleanup in ftrace_mprofile.S

Add some line breaks to better match the file's style, add
some space after comma and fix a couple of misplaced blanks.

Suggested-by: Naveen N. Rao <[e-mail]>
Signed-off-by: Christophe Leroy <[e-mail]>
Reviewed-by: Naveen N. Rao <[e-mail]>
Signed-off-by: Michael Ellerman <[e-mail]>
Link: https://lore.kernel.org/r/97350629[e-mail]

arch/powerpc/kernel/trace/ftrace_mprofile.S

···
 #endif
 
 #ifdef CONFIG_LIVEPATCH_64
-	mr	r14,r7		/* remember old NIP */
+	mr	r14, r7		/* remember old NIP */
 #endif
+
 	/* Calculate ip from nip-4 into r3 for call below */
 	subi    r3, r7, MCOUNT_INSN_SIZE
 
···
 	PPC_STL	r11, _CCR(r1)
 
 	/* Load &pt_regs in r6 for call below */
-	addi    r6, r1 ,STACK_FRAME_OVERHEAD
+	addi    r6, r1, STACK_FRAME_OVERHEAD
 
 	/* ftrace_call(r3, r4, r5, r6) */
 .globl ftrace_regs_call
···
 	/* Load ctr with the possibly modified NIP */
 	PPC_LL	r3, _NIP(r1)
 	mtctr	r3
+
 #ifdef CONFIG_LIVEPATCH_64
 	cmpd	r14, r3		/* has NIP been altered? */
 #endif
···
 
 #ifdef CONFIG_LIVEPATCH_64
 	SAVE_GPR(14, r1)
-	mr	r14,r7		/* remember old NIP */
+	mr	r14, r7		/* remember old NIP */
 #endif
 	/* Calculate ip from nip-4 into r3 for call below */
 	subi    r3, r7, MCOUNT_INSN_SIZE
···
 	PPC_STL	r8, _MSR(r1)
 
 	/* Load &pt_regs in r6 for call below */
-	addi    r6, r1 ,STACK_FRAME_OVERHEAD
+	addi    r6, r1, STACK_FRAME_OVERHEAD
 
 	/* ftrace_call(r3, r4, r5, r6) */
 .globl ftrace_call
···
 
 	PPC_LL	r3, _NIP(r1)
 	mtctr	r3
+
 #ifdef CONFIG_LIVEPATCH_64
 	cmpd	r14, r3		/* has NIP been altered? */
 	REST_GPR(14, r1)
···
         /* Based on the cmpd above, if the NIP was altered handle livepatch */
 	bne-	livepatch_handler
 #endif
+
 	bctr			/* jump after _mcount site */
 
 #ifdef CONFIG_LIVEPATCH_64