mtd: use %*ph[CN] to dump small buffers

There is new format specified that helps to dump small buffers. It makes the
code simpler and nicer.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

4 files changed, 14 insertions, 41 deletions

diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c
index 04eb2e4aa50f..4f2220ad8924 100644
--- a/drivers/mtd/devices/doc2001plus.c
+++ b/drivers/mtd/devices/doc2001plus.c
@@ -659,23 +659,15 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
 #ifdef ECC_DEBUG
                         printk("%s(%d): Millennium Plus ECC error (from=0x%x:\n",
                                 __FILE__, __LINE__, (int)from);
-                        printk("        syndrome= %02x:%02x:%02x:%02x:%02x:"
-                                "%02x\n",
-                                syndrome[0], syndrome[1], syndrome[2],
-                                syndrome[3], syndrome[4], syndrome[5]);
-                        printk("          eccbuf= %02x:%02x:%02x:%02x:%02x:"
-                                "%02x\n",
-                                eccbuf[0], eccbuf[1], eccbuf[2],
-                                eccbuf[3], eccbuf[4], eccbuf[5]);
+                        printk("        syndrome= %*phC\n", 6, syndrome);
+                        printk("        eccbuf= %*phC\n", 6, eccbuf);
 #endif
                                 ret = -EIO;
                 }
         }
 
 #ifdef PSYCHO_DEBUG
-        printk("ECC DATA at %lx: %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n",
-               (long)from, eccbuf[0], eccbuf[1], eccbuf[2], eccbuf[3],
-               eccbuf[4], eccbuf[5]);
+        printk("ECC DATA at %lx: %*ph\n", (long)from, 6, eccbuf);
 #endif
         /* disable the ECC engine */
         WriteDOC(DOC_ECC_DIS, docptr , Mplus_ECCConf);
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
index f70854d728fe..d34d83b8f9c2 100644
--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -919,19 +919,13 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t from,
                 eccconf1 = doc_register_readb(docg3, DOC_ECCCONF1);
 
                 if (nboob >= DOC_LAYOUT_OOB_SIZE) {
-                        doc_dbg("OOB - INFO: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
-                                oobbuf[0], oobbuf[1], oobbuf[2], oobbuf[3],
-                                oobbuf[4], oobbuf[5], oobbuf[6]);
+                        doc_dbg("OOB - INFO: %*phC\n", 7, oobbuf);
                         doc_dbg("OOB - HAMMING: %02x\n", oobbuf[7]);
-                        doc_dbg("OOB - BCH_ECC: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
-                                oobbuf[8], oobbuf[9], oobbuf[10], oobbuf[11],
-                                oobbuf[12], oobbuf[13], oobbuf[14]);
+                        doc_dbg("OOB - BCH_ECC: %*phC\n", 7, oobbuf + 8);
                         doc_dbg("OOB - UNUSED: %02x\n", oobbuf[15]);
                 }
                 doc_dbg("ECC checks: ECCConf1=%x\n", eccconf1);
-                doc_dbg("ECC HW_ECC: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
-                        hwecc[0], hwecc[1], hwecc[2], hwecc[3], hwecc[4],
-                        hwecc[5], hwecc[6]);
+                doc_dbg("ECC HW_ECC: %*phC\n", 7, hwecc);
 
                 ret = -EIO;
                 if (is_prot_seq_error(docg3))
diff --git a/drivers/mtd/nand/bcm_umi_bch.c b/drivers/mtd/nand/bcm_umi_bch.c
index c8799a001833..ce39c8705d62 100644
--- a/drivers/mtd/nand/bcm_umi_bch.c
+++ b/drivers/mtd/nand/bcm_umi_bch.c
@@ -154,19 +154,10 @@ static int bcm_umi_bch_read_page_hwecc(struct mtd_info *mtd,
 #if defined(NAND_BCM_UMI_DEBUG)
                         printk(KERN_WARNING "%s uncorr_err sectorIdx=%d\n",
                                __func__, sectorIdx);
-                        printk(KERN_WARNING
-                               "%s data %02x %02x %02x %02x "
-                                         "%02x %02x %02x %02x\n",
-                               __func__, datap[0], datap[1], datap[2], datap[3],
-                               datap[4], datap[5], datap[6], datap[7]);
-                        printk(KERN_WARNING
-                               "%s ecc  %02x %02x %02x %02x "
-                                         "%02x %02x %02x %02x %02x %02x "
-                                         "%02x %02x %02x\n",
-                               __func__, eccCalc[0], eccCalc[1], eccCalc[2],
-                               eccCalc[3], eccCalc[4], eccCalc[5], eccCalc[6],
-                               eccCalc[7], eccCalc[8], eccCalc[9], eccCalc[10],
-                               eccCalc[11], eccCalc[12]);
+                        printk(KERN_WARNING "%s data %*ph\n",
+                               __func__, 8, datap);
+                        printk(KERN_WARNING "%s ecc  %*ph\n",
+                               __func__, 13, eccCalc);
                         BUG();
 #endif
                         mtd->ecc_stats.failed++;
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index e71f7a951bf0..8ae9399fb4c8 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -457,10 +457,8 @@ static int s3c2410_nand_correct_data(struct mtd_info *mtd, u_char *dat,
         diff1 = read_ecc[1] ^ calc_ecc[1];
         diff2 = read_ecc[2] ^ calc_ecc[2];
 
-        pr_debug("%s: rd %02x%02x%02x calc %02x%02x%02x diff %02x%02x%02x\n",
-                 __func__,
-                 read_ecc[0], read_ecc[1], read_ecc[2],
-                 calc_ecc[0], calc_ecc[1], calc_ecc[2],
+        pr_debug("%s: rd %*phN calc %*phN diff %02x%02x%02x\n",
+                 __func__, 3, read_ecc, 3, calc_ecc,
                  diff0, diff1, diff2);
 
         if (diff0 == 0 && diff1 == 0 && diff2 == 0)
@@ -562,8 +560,7 @@ static int s3c2410_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
         ecc_code[1] = readb(info->regs + S3C2410_NFECC + 1);
         ecc_code[2] = readb(info->regs + S3C2410_NFECC + 2);
 
-        pr_debug("%s: returning ecc %02x%02x%02x\n", __func__,
-                 ecc_code[0], ecc_code[1], ecc_code[2]);
+        pr_debug("%s: returning ecc %*phN\n", __func__, 3, ecc_code);
 
         return 0;
 }
@@ -578,8 +575,7 @@ static int s3c2412_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
         ecc_code[1] = ecc >> 8;
         ecc_code[2] = ecc >> 16;
 
-        pr_debug("calculate_ecc: returning ecc %02x,%02x,%02x\n",
-                 ecc_code[0], ecc_code[1], ecc_code[2]);
+        pr_debug("%s: returning ecc %*phN\n", __func__, 3, ecc_code);
 
         return 0;
 }