media: drxk: Use %*ph for printing hexdump of a small buffer

The kernel already has a helper to print a hexdump of a small
buffer via pointer extension. Use that instead of open coded
variant.

In long term it helps to kill pr_cont() or at least narrow down
its use.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/dvb-frontends/drxk_hard.c b/drivers/media/dvb-frontends/drxk_hard.c
index 3301ef7..d0c373e 100644 (file)
--- a/drivers/media/dvb-frontends/drxk_hard.c
+++ b/drivers/media/dvb-frontends/drxk_hard.c
@@ -229,13 +229,8 @@ static int i2c_write(struct drxk_state *state, u8 adr, u8 *data, int len)
        struct i2c_msg msg = {
            .addr = adr, .flags = 0, .buf = data, .len = len };
 
-       dprintk(3, ":");
-       if (debug > 2) {
-               int i;
-               for (i = 0; i < len; i++)
-                       pr_cont(" %02x", data[i]);
-               pr_cont("\n");
-       }
+       dprintk(3, ": %*ph\n", len, data);
+
        status = drxk_i2c_transfer(state, &msg, 1);
        if (status >= 0 && status != 1)
                status = -EIO;
@@ -267,16 +262,7 @@ static int i2c_read(struct drxk_state *state,
                pr_err("i2c read error at addr 0x%02x\n", adr);
                return status;
        }
-       if (debug > 2) {
-               int i;
-               dprintk(2, ": read from");
-               for (i = 0; i < len; i++)
-                       pr_cont(" %02x", msg[i]);
-               pr_cont(", value = ");
-               for (i = 0; i < alen; i++)
-                       pr_cont(" %02x", answ[i]);
-               pr_cont("\n");
-       }
+       dprintk(3, ": read from %*ph, value = %*ph\n", len, msg, alen, answ);
        return 0;
 }
 
@@ -441,13 +427,8 @@ static int write_block(struct drxk_state *state, u32 address,
                }
                memcpy(&state->chunk[adr_length], p_block, chunk);
                dprintk(2, "(0x%08x, 0x%02x)\n", address, flags);
-               if (debug > 1) {
-                       int i;
-                       if (p_block)
-                               for (i = 0; i < chunk; i++)
-                                       pr_cont(" %02x", p_block[i]);
-                       pr_cont("\n");
-               }
+               if (p_block)
+                       dprintk(2, "%*ph\n", chunk, p_block);
                status = i2c_write(state, state->demod_address,
                                   &state->chunk[0], chunk + adr_length);
                if (status < 0) {