target/linux/mediatek/files/drivers/mtd/mtk-snand/mtk-snand-os.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2020 MediaTek Inc. All Rights Reserved.
   4  *
   5  * Author: Weijie Gao <weijie.gao@mediatek.com>
   6  */
   7
   8 #include "mtk-snand-def.h"
   9
  10 int mtk_snand_log(struct mtk_snand_plat_dev *pdev,
  11                   enum mtk_snand_log_category cat, const char *fmt, ...)
  12 {
  13         const char *catname = "";
  14         va_list ap;
  15         char *msg;
  16
  17         switch (cat) {
  18         case SNAND_LOG_NFI:
  19                 catname = "NFI";
  20                 break;
  21         case SNAND_LOG_SNFI:
  22                 catname = "SNFI";
  23                 break;
  24         case SNAND_LOG_ECC:
  25                 catname = "ECC";
  26                 break;
  27         default:
  28                 break;
  29         }
  30
  31         va_start(ap, fmt);
  32         msg = kvasprintf(GFP_KERNEL, fmt, ap);
  33         va_end(ap);
  34
  35         if (!msg) {
  36                 dev_warn(pdev->dev, "unable to print log\n");
  37                 return -1;
  38         }
  39
  40         if (*catname)
  41                 dev_warn(pdev->dev, "%s: %s", catname, msg);
  42         else
  43                 dev_warn(pdev->dev, "%s", msg);
  44
  45         kfree(msg);
  46
  47         return 0;
  48 }