[PARISC] remove drm compat ioctls handlers

[linux-2.6-omap-h63xx.git] / arch / parisc / kernel / syscall.S

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index b29b76b42bb70cd4f4df3892016665afc744874d..d66163492890203d86a51523f8cab035873d2d13 100644 (file)
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -164,7 +164,7 @@ linux_gateway_entry:
 #endif
        STREG   %r2,  TASK_PT_GR30(%r1)         /* ... and save it */
        
-       STREG   %r20, TASK_PT_GR20(%r1)
+       STREG   %r20, TASK_PT_GR20(%r1)         /* Syscall number */
        STREG   %r21, TASK_PT_GR21(%r1)
        STREG   %r22, TASK_PT_GR22(%r1)
        STREG   %r23, TASK_PT_GR23(%r1)         /* 4th argument */
@@ -527,6 +527,7 @@ lws_compare_and_swap:
                We *must* giveup this call and fail.
        */
        ldw     4(%sr2,%r20), %r28                      /* Load thread register */
+       /* WARNING: If cr27 cycles to the same value we have problems */
        mfctl   %cr27, %r21                             /* Get current thread register */
        cmpb,<>,n       %r21, %r28, cas_lock            /* Called recursive? */
        b       lws_exit                                /* Return error! */