x86: style cleanups for xen assemblies

Make the following style cleanups:

* drop unnecessary //#include from xen-asm_32.S
* compulsive adding of space after comma
* reformat multiline comments

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 55 insertions, 52 deletions

diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index d205a283efe0..02f496a8dbaa 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -1,14 +1,14 @@
 /*
-        Asm versions of Xen pv-ops, suitable for either direct use or inlining.
-        The inline versions are the same as the direct-use versions, with the
-        pre- and post-amble chopped off.
-
-        This code is encoded for size rather than absolute efficiency,
-        with a view to being able to inline as much as possible.
-
-        We only bother with direct forms (ie, vcpu in pda) of the operations
-        here; the indirect forms are better handled in C, since they're
-        generally too large to inline anyway.
+ * Asm versions of Xen pv-ops, suitable for either direct use or
+ * inlining.  The inline versions are the same as the direct-use
+ * versions, with the pre- and post-amble chopped off.
+ *
+ * This code is encoded for size rather than absolute efficiency, with
+ * a view to being able to inline as much as possible.
+ *
+ * We only bother with direct forms (ie, vcpu in pda) of the
+ * operations here; the indirect forms are better handled in C, since
+ * they're generally too large to inline anyway.
  */
 
 #include <asm/errno.h>
@@ -21,25 +21,25 @@
 #include "xen-asm.h"
 
 ENTRY(xen_adjust_exception_frame)
-        mov 8+0(%rsp),%rcx
-        mov 8+8(%rsp),%r11
+        mov 8+0(%rsp), %rcx
+        mov 8+8(%rsp), %r11
         ret $16
 
 hypercall_iret = hypercall_page + __HYPERVISOR_iret * 32
 /*
-        Xen64 iret frame:
-
-        ss
-        rsp
-        rflags
-        cs
-        rip             <-- standard iret frame
-
-        flags
-
-        rcx             }
-        r11             }<-- pushed by hypercall page
-rsp ->  rax             }
+ * Xen64 iret frame:
+ *
+ *      ss
+ *      rsp
+ *      rflags
+ *      cs
+ *      rip             <-- standard iret frame
+ *
+ *      flags
+ *
+ *      rcx             }
+ *      r11             }<-- pushed by hypercall page
+ * rsp->rax             }
  */
 ENTRY(xen_iret)
         pushq $0
@@ -48,8 +48,8 @@ ENDPATCH(xen_iret)
 RELOC(xen_iret, 1b+1)
 
 /*
-        sysexit is not used for 64-bit processes, so it's
-        only ever used to return to 32-bit compat userspace.
+ * sysexit is not used for 64-bit processes, so it's only ever used to
+ * return to 32-bit compat userspace.
  */
 ENTRY(xen_sysexit)
         pushq $__USER32_DS
@@ -64,10 +64,12 @@ ENDPATCH(xen_sysexit)
 RELOC(xen_sysexit, 1b+1)
 
 ENTRY(xen_sysret64)
-        /* We're already on the usermode stack at this point, but still
-           with the kernel gs, so we can easily switch back */
+        /*
+         * We're already on the usermode stack at this point, but
+         * still with the kernel gs, so we can easily switch back
+         */
         movq %rsp, PER_CPU_VAR(old_rsp)
-        movq PER_CPU_VAR(kernel_stack),%rsp
+        movq PER_CPU_VAR(kernel_stack), %rsp
 
         pushq $__USER_DS
         pushq PER_CPU_VAR(old_rsp)
@@ -81,8 +83,10 @@ ENDPATCH(xen_sysret64)
 RELOC(xen_sysret64, 1b+1)
 
 ENTRY(xen_sysret32)
-        /* We're already on the usermode stack at this point, but still
-           with the kernel gs, so we can easily switch back */
+        /*
+         * We're already on the usermode stack at this point, but
+         * still with the kernel gs, so we can easily switch back
+         */
         movq %rsp, PER_CPU_VAR(old_rsp)
         movq PER_CPU_VAR(kernel_stack), %rsp
 
@@ -98,28 +102,27 @@ ENDPATCH(xen_sysret32)
 RELOC(xen_sysret32, 1b+1)
 
 /*
-        Xen handles syscall callbacks much like ordinary exceptions,
-        which means we have:
-         - kernel gs
-         - kernel rsp
-         - an iret-like stack frame on the stack (including rcx and r11):
-                ss
-                rsp
-                rflags
-                cs
-                rip
-                r11
-        rsp->   rcx
-
-        In all the entrypoints, we undo all that to make it look
-        like a CPU-generated syscall/sysenter and jump to the normal
-        entrypoint.
+ * Xen handles syscall callbacks much like ordinary exceptions, which
+ * means we have:
+ * - kernel gs
+ * - kernel rsp
+ * - an iret-like stack frame on the stack (including rcx and r11):
+ *      ss
+ *      rsp
+ *      rflags
+ *      cs
+ *      rip
+ *      r11
+ * rsp->rcx
+ *
+ * In all the entrypoints, we undo all that to make it look like a
+ * CPU-generated syscall/sysenter and jump to the normal entrypoint.
  */
 
 .macro undo_xen_syscall
-        mov 0*8(%rsp),%rcx
-        mov 1*8(%rsp),%r11
-        mov 5*8(%rsp),%rsp
+        mov 0*8(%rsp), %rcx
+        mov 1*8(%rsp), %r11
+        mov 5*8(%rsp), %rsp
 .endm
 
 /* Normal 64-bit system call target */
@@ -146,7 +149,7 @@ ENDPROC(xen_sysenter_target)
 
 ENTRY(xen_syscall32_target)
 ENTRY(xen_sysenter_target)
-        lea 16(%rsp), %rsp      /* strip %rcx,%r11 */
+        lea 16(%rsp), %rsp      /* strip %rcx, %r11 */
         mov $-ENOSYS, %rax
         pushq $VGCF_in_syscall
         jmp hypercall_iret