tty/powerpc: fix build break with ehv_bytechan.c on allyesconfig

The ePAPR hypervisor byte channel driver is supposed to work on all
ePAPR-compliant embedded PowerPC systems, but it had a reference to the MSR_GS
bit, which is available only on Book-E systems.

Also fix a couple integer-to-pointer typecast problems.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index e67f70bbf0ac..f733718bf8e7 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -226,10 +226,6 @@ void __init udbg_init_ehv_bc(void)
         unsigned int rx_count, tx_count;
         unsigned int ret;
 
-        /* Check if we're running as a guest of a hypervisor */
-        if (!(mfmsr() & MSR_GS))
-                return;
-
         /* Verify the byte channel handle */
         ret = ev_byte_channel_poll(CONFIG_PPC_EARLY_DEBUG_EHV_BC_HANDLE,
                                    &rx_count, &tx_count);
@@ -286,7 +282,7 @@ static int ehv_bc_console_byte_channel_send(unsigned int handle, const char *s,
 static void ehv_bc_console_write(struct console *co, const char *s,
                                  unsigned int count)
 {
-        unsigned int handle = (unsigned int)co->data;
+        unsigned int handle = (uintptr_t)co->data;
         char s2[EV_BYTE_CHANNEL_MAX_BYTES];
         unsigned int i, j = 0;
         char c;
@@ -352,7 +348,7 @@ static int __init ehv_bc_console_init(void)
                            CONFIG_PPC_EARLY_DEBUG_EHV_BC_HANDLE);
 #endif
 
-        ehv_bc_console.data = (void *)stdout_bc;
+        ehv_bc_console.data = (void *)(uintptr_t)stdout_bc;
 
         /* add_preferred_console() must be called before register_console(),
            otherwise it won't work.  However, we don't want to enumerate all the