USB: host: mark const variable tables as "const"

Mark the tables as const so that they end up in .rodata
section and don't cacheline share with things that get
written to.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 1666734..a93d80b 100644 (file)
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -312,9 +312,9 @@ static void put_child_connect_map(struct r8a66597 *r8a66597, int address)
 static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch)
 {
        u16 pipenum = pipe->info.pipenum;
-       unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO};
-       unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL};
-       unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR};
+       const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO};
+       const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL};
+       const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR};
 
        if (dma_ch > R8A66597_PIPE_NO_DMA)      /* dma fifo not use? */
                dma_ch = R8A66597_PIPE_NO_DMA;