[XTENSA] Fix comments regarding the number of frames to save

Signed-off-by: Marc Gauthier <marc@tensilica.com>
Signed-off-by: Chris Zankel <chris@zankel.net>

diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 401b33bfd9c023b422f6c5e1f15a05451d0c7989..b4b14a579a3c38c594859f90f931014e5c669efd 100644 (file)
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -1336,11 +1336,11 @@ ENTRY(_spill_registers)
 
        wsr     a2, DEPC                # preserve a2
        rsr     a2, WINDOWBASE
-       rsr     a3, WINDOWSTART
+       rsr     a3, WINDOWSTART         # a3 = xxxwww1yy
        ssr     a2                      # holds WB
        slli    a2, a3, WSBITS
-       or      a3, a3, a2              # a2 = xxxwww1yyxxxwww1yy
-       srl     a3, a3
+       or      a3, a3, a2              # a3 = xxxwww1yyxxxwww1yy
+       srl     a3, a3                  # a3 = 00xxxwww1yyxxxwww1
 
        /* We are done if there are no more than the current register frame. */
 
@@ -1395,8 +1395,8 @@ ENTRY(_spill_registers)
        j       .Lc12c
 
 .Lnospill:
-       rsr     a2, DEPC        # restore a2 and 'return'
-       jx      a0
+       rsr     a2, DEPC
+       ret
 
 .Lloop: _bbsi.l        a3, 1, .Lc4
        _bbci.l a3, 2, .Lc12
@@ -1423,7 +1423,7 @@ ENTRY(_spill_registers)
        movi    a3, 1
        sll     a3, a3
        wsr     a3, WINDOWSTART
-       jx      a0
+       ret
 
 .Lc4:  s32e    a4, a9, -16
        s32e    a5, a9, -12