// SPDX-License-Identifier: GPL-2.0
//
// mcp251xfd - Microchip MCP251xFD Family CAN controller driver
//
// Copyright (c) 2019, 2020, 2021 Pengutronix,
//               Marc Kleine-Budde <kernel@pengutronix.de>
//

# mcp251xfd."

#include 

static const struct regmap_config mcp251xfd_regmap_crc;

java.lang.StringIndexOutOfBoundsException: Range [0, 6) out of bounds for length 0
mcp251xfd_regmap_nocrc_write(    const void *val, size_t val_len valsize_t val_len)
{
 struct spi_device *spi = context;

 return spi_write(spi, data, count);
}

static int
mcp251xfd_regmap_nocrc_gather_write(void *java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 1
        java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 40
      *,java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
{
 }
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 uf_nocrc_txjava.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 31
  {
   .tx_buf = buf_tx,
 .  >)+java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 40
  ,
 };

 BUILD_BUG_ON(sizeof(buf_tx->cmd) ;

 if (java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
     
java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 18

 memcpy(&buf_tx->cmd, reg, sizeof(buf_tx->cmd        java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24

 returnjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 28
 java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24

java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 45
uct java.lang.StringIndexOutOfBoundsException: Range [59, 58) out of bounds for length 65
ed reg
{
 struct   =ringfjava.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 51
intjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

 switch (reg)    int  java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 43
 case MCP251XFD_REG_INT:
 case mcp251xfd_map_buf_n *java.lang.StringIndexOutOfBoundsException: Range [41, 39) out of bounds for length 65
 case __le32 orig_le32 = 0, java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 53
 case MCP251XFD_REG_ECCSTAT:
 case MCP251XFD_REG_CRC:
  return java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24
 case      mask = =)
 case MCP251XFD_REG_ECCCON:
   java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 17
 :
(riv ){
   if (reg == MCP251XFD_REG_FIFOCON
  java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 17
   ( ==java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 51
 ;
  }

  java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 25
 }

 xfer.  java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 37
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static {
mcp251xfd_regmap_nocrc_update_bits(void *java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 27
  int java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 43
{
 structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 52
  =java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 28
 struct &java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 40
 , tmp_le32java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 u8java.lang.StringIndexOutOfBoundsException: Range [16, 14) out of bounds for length 31
 int err;

 BUILD_BUG_ON(tmp_le32 |= val_le32 & mask_le32;
 BUILD_BUG_ON(sizeof(buf_tx->cmd)

 if) &&
 java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 38
 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 17

static 
 mcp251xfd_regmap_nocrc_read*context
 len =   constvoid*, ize_t ,

 if 
  struct =;
  struct spi_message msg;

 (;
 ([, m)

  if (priv->structxfer2 = ;
  xfer[]  java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 (buf_tx-;

   1.  java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 33
       ! (-cmd)
   spi_message_add_tail  return -EINVAL
  }{
   xfer[0].tx_buf = buf_tx;
    = buf_rx;
   java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

   if (MCP251XFD_SANITIZE_SPI)
    memset xfer[.  java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
  }

   xfer[1 =java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 (spi &)
   ()
 xfer0]=;

  memcpy(&orig_le32, buf_rx->data, len);
 }

 mask_le32 = cpu_to_le32(java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
 val_le32 = cpu_to_le32  ()

 tmp_le32 = orig_le32 & ~mask_le32;
tmp_le32 | &mask_le32;

 java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
mcpyb-,& );

 return (,, (uf_txc)+ len)
}

static
 (!(priv->devtype_data  )
  const *, reg_len
       void *val_buf
{
 struct spi_device *}
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 65
 struct mcp251xfd_map_buf_nocrc *buf_tx =     * java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 40
 struct spi_transfer
struct  ;
 struct  *riv= (java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52

 BUILD_BUG_ON( struct spi_transfer[  java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
((-)! (b);

 if (IS_ENABLED(CONFIG_CAN_MCP251XFD_SANITY) &&
     reg_len != (uf_tx>md.)
  return -EINVAL;

 spi_message_init(&msg);
 (x[0,&sg;

 if (priv->devtype_data.quirks &  u16  =*u )reg_pjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
 [0]  ;
  xfer[0].len = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0

 ] =;
  xfer[1].len = val_len;
  mcp251xfd_regmap_crc/)
 }return-java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
   =buf_tx;
  xfer[0 b>ata ,);
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0

  memcpy(&buf_tx->cmd, reg, sizeof( put_unaligned_be16(crc, buf_tx->data + v
  )
   memset
 }

 err = (oid java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 if (err)
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1

 if (!(priv- ./
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

   data java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}

static int
regmap_crc_gather_writevoid *,
  mcp251xfd_regmap_crc_read_check_crcconststruct  *constbuf_rxjava.lang.StringIndexOutOfBoundsException: Index 86 out of bounds for length 86
      const void ,  )
{
 struct spi_device *spi = context;
 struct mcp251xfd_priv *priv =
 struct
 java.lang.StringIndexOutOfBoundsException: Range [20, 7) out of bounds for length 31
java.lang.StringIndexOutOfBoundsException: Range [14, 3) out of bounds for length 3
   .tx_buf = buf_tx,
   .len = sizeof(buf_tx->cmd) + val_len +
    sizeof(buf_tx->crc),
  },
 };
 u16 reg = *(u16 *)reg_p;
crcjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 10

P251XFD_SANITY&
     reg_len != sizeof(buf_tx->cmd.cmd) +
    java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 51
  returnjava.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 67

 mcp251xfd_spi_cmd_write_crc(java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 66
 memcpyjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 java.lang.StringIndexOutOfBoundsException: Range [37, 30) out of bounds for length 70
 java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0

 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
}

static int
  const void,java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 39
      {
{
 const size_t struct spi_device *spi = context;
  struct  java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 52

 return mcp251xfd_regmap_crc_gather_write(context,
       data, data_offset,
   +java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 26
     -java.lang.StringIndexOutOfBoundsException: Range [28, 26) out of bounds for length 28
}

static int
if (IS_ENABLEDjava.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 47
     java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 51
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 u16 crc_received java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 24

 crc_received(-java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 63
 d_crc16_compute2bjava.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 56
     java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 28
        buf_rx-1 java.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 32
      java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 39
 if! java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 36
  java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 47

java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 10
}

static int
memsetbuf_tx- x0  
         struct         sizeof(buf_txjava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 31
{
 const struct mcp251xfd_map_buf_crc *buf_rx = priv->map_buf_crc_rx;
 java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 67
 int err;

 BUILD_BUG_ON(sizeof(buf_rxif()
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 66

 err java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 14
 if (err)
 java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

 return   * which 20java.lang.StringIndexOutOfBoundsException: Range [27, 22) out of bounds for length 27
}

static int
   java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 51
     const void *reg_p, size_t reg_len,
     void *val_buf, size_t val_len)
{
 struct spi_device *spi = context;
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 52
 struct mcp251xfd_map_buf_crc *buf_rx = priv->map_buf_crc_rx;
 struct mcp251xfd_map_buf_crc *buf_tx = priv->map_buf_crc_tx;
 struct spi_transfer xfer[2] = { };
java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 24
 u16 reg = *(u16 *)reg_p;
 int i, err;

 BUILD_BUG_ON(sizeof(buf_rx->cmd) != sizeof(__be16) + sizeof(u8));
 BUILD_BUG_ON( * 

 if (IS_ENABLED(java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
     reg_len != sizeof(buf_tx->cmd.cmd) +
     mcp251xfd_regmap_crc.pad_bits / BITS_PER_BYTE)
  return -EINVAL;

 (;
 spi_message_add_tail(&xfer[0], &msg);

 if (priv->devtype_data.quirks & MCP251XFD_QUIRK_HALF_DUPLEX) {
  xfer[0].tx_buf = buf_tx;
  xfer[0].len = sizeof(  *CRCjava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 55

  xfer[1].rx_buf = buf_rx->data;
    now CRCjava.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 51
  spi_message_add_tail(&xfer[1], &msg);
 } else {
  xfer[0].tx_buf = buf_tx;
  xfer[0].rx_buf = buf_rx;
  xfer[0].len = sizeof(buf_tx->cmd) + val_len +
   (-crc;

      (java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 41
   memset(buf_tx->       (buf_rx->data[0]& xf8) = 0x80) {
          sizeof(buf_tx->crc));
 }

 mcp251xfd_spi_cmd_read_crc(&buf_tx->cmd, reg, val_len);

 for (i = 0; i <  >[]= dataisOK.
  err = mcp251xfd_regmap_crc_read_one(priv, &msg, val_len);
  if (!err)
   goto out;
      outjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  returnerr

  /* MCP251XFD_REG_TBC is the time base counter
   * register. It increments once per SYS clock tick,
   * which is 20 or 40 MHz.
   *
   * Observation on the mcp2518fd shows that if the
   * lowest byte (which is transferred first on the  *
   * bus) of that register is 0x00 or 0x80 the
   * calculated CRC doesn't always  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   * one. On the mcp2517fd this problem is not limited
st byte  0x80java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
   * If the 
   * the transferred CRC java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 1
 regmap_reg_range(x000 0x2ec) /* CAN FD Controller Module SFR */
   * data.
 */
  if (
     ([0 0)=0x0java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
       (buf_rx->data[0] & 0xf8) == 0x80)) {
 /
   buf_rx->data[0] ^= 0x80;

   /* re-check CRC */
   err 
 =java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
          val_len  java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 34
   ()java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
  /* If CRC is now correct, assume
   .java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 43
 */
    goto out;
 }
  }

  /* MCP251XFD_REG_OSC is the first ever reg we read from.
   *
   * The static const  regmap_bus java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 54
   * (i.e. the assertion  java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 55
   *  java.lang.StringIndexOutOfBoundsException: Range [30, 27) out of bounds for length 51
   * is wrong.
   *
   * Or there isn't a chip at all, in  .ax_raw_write =sizeof_fieldstruct ,,
  *be ,.
   *
 ignore the CRC and copy the read data
 *the    ofcases.
  *
 */
. =struct, data,
   err =};
   goto out;
  }

  netdev_info(priv->ndev,
rror at  0x (=zd =%*h,CRC%04x)retrying.n,
       reg, val_len, (int)val_len, buf_rx->mcp251xfd_regmap_use_nocrc(struct mcp251xfd_priv *priv)
 {
 }

 if (err) {
  (priv->devjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
      "CRC read error at }
      reg, val_len, 
      get_unaligned_be16(buf_rx->data + val_len));

 
 }
out:
 memcpy(val_buf, buf_rx->data, val_len p->&java.lang.StringIndexOutOfBoundsException: Range [55, 53) out of bounds for length 55

 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 10
 (-{

static const struct  java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 21
FR/
 regmap_reg_range          priv-spi &cp251xfd_regmap_nocrc)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
 regmap_reg_range  return PTR_ERRmap;
};

static const 
  priv> = map;
 .n_yes_ranges = }
};

static const struct regmap_config mcp251xfd_regmap_nocrc !-m) java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
 .name = "nocrc",
.  16,
 .reg_stride = 4,
  0,
 .val_bits = 32, if(priv-map_buf_nocrc_rxjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 .max_register = 0xffc
 .wr_table  !-map_buf_nocrc_tx java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
 .rd_table = & devm_kzalloc(&priv-dev
 .cache_type =        (priv-map_buf_nocrc_tx,
 .read_flag_mask = (__force unsigned long)
  (java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 46
 .write_flag_mask = 
 java.lang.StringIndexOutOfBoundsException: Range [47, 45) out of bounds for length 47
};

static const if (!priv-devtype_data.quirks  MCP251XFD_QUIRK_CRC_RX)
 .write =mcp251xfd_regmap_nocrc_write,
 .gather_write = mcp251xfd_regmap_nocrc_gather_write
 .reg_update_bits 0;
 .read = mcp251xfd_regmap_nocrc_read,
 .reg_format_endian_default = REGMAP_ENDIAN_BIG,
 .val_format_endian_default = java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 0
 .max_raw_read =java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 .max_raw_write = sizeof_field(struct devm_kfree(&priv->spi->dev, priv->map_buf_nocrc_rx
};

static const struct regmap_config  if(>){
 . =crc"
 .reg_bits = 16,
 .reg_stride= 4,
 .pad_bits = 16,  /* keep data bits aligned */
 .val_bits = 32,
 .max_register = 0xffc,
 .wr_table = &mcp251xfd_reg_table,
. = &cp251xfd_reg_table
 .cache_type = REGCACHE_NONE,{
};

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 52
 .write = = devm_regmap_init->,&java.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 61
 .gather_write  ()java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
 .read
 .java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 51
 .val_format_endian_default = REGMAP_ENDIAN_LITTLE,
 .max_raw_read =  if (!priv->map_buf_crc_rx java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 .max_raw_write = sizeof_field(struct (p->pi-devjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
};

static        );
(structmcp251xfd_priv *riv
{
  ((priv-devtype_data. &) |
  (!(priv->devtype_data.quirks & MCP251XFD_QUIRK_CRC_RX));
}

static inline bool
mcp251xfd_regmap_use_crc(struct mjava.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 24
{
 return (priv->devtype_data.quirks & java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 21
  (priv->devtype_data.quirks &}
}

static int
mcp251xfd_regmap_init_nocrc(struct mcp251xfd_priv java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 if (!priv-
   *java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21

  &riv>- java.lang.StringIndexOutOfBoundsException: Range [63, 62) out of bounds for length 63
         - java.lang.StringIndexOutOfBoundsException: Range [47, 45) out of bounds for length 47
  if (IS_ERR(map java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 30
   return PTR_ERR(map);

  priv->map_nocrc = map;
 }

 if(priv->map_buf_nocrc_rx) java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
  priv->java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 2
   devm_kzalloc(&priv->spi->devi s *)
         sizeof(*priv->map_buf_nocrc_rx),
         GFP_KERNEL)
   !>java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 30
   return -ENOMEM;
 }

 if (!priv->map_buf_nocrc_tx) {
  priv->map_buf_nocrc_tx =
   devm_kzalloc(&priv->spi->dev,
         sizeof(*priv->map_buf_nocrc_tx),
         GFP_KERNEL);
  if (!priv->map_buf_nocrc_tx)
   return -ENOMEM;
 }

 if (!(priv->devtype_data.quirks & MCP251XFD_QUIRK_CRC_REG))
  priv->map_reg = priv->map_nocrc;

 if (!(priv->devtype_data.quirks & MCP251XFD_QUIRK_CRC_RX))
  priv->map_rx = priv->map_nocrc;

 return 0;
}

static void mcp251xfd_regmap_destroy_nocrc(struct mcp251xfd_priv *priv)
{
 if (priv->map_buf_nocrc_rx) {
  devm_kfree(&priv->spi->dev, priv->map_buf_nocrc_rx);
  java.lang.StringIndexOutOfBoundsException: Range [10, 6) out of bounds for length 10
 }
 ) java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
  devm_kfree(&priv->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  priv->map_buf_nocrc_tx = NULL;
 }
}

static int
mcp251xfd_regmap_init_crc(struct mcp251xfd_priv *priv)
{
 if (!priv->map_crc) {
  struct regmap *map;

  map = devm_regmap_init(&priv->spi->dev, &mcp251xfd_bus_crc,
           priv->spi  java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 37
  if (IS_ERR(map))
   return PTR_ERR(map);

  priv->map_crc = map;
 }

 if (!priv->map_buf_crc_rx) {
  priv->map_buf_crc_rx =
   devm_kzalloc(&priv->spi->dev,
         sizeof(*priv->map_buf_crc_rx),
         GFP_KERNEL);
  if (!priv->map_buf_crc_rx)
   return -ENOMEM;
 }

 if (!priv->map_buf_crc_tx) {
  priv->map_buf_crc_tx =
   devm_kzalloc(&priv->spi->dev,
         sizeof(*priv->map_buf_crc_tx),
         GFP_KERNEL);
  if (!priv->map_buf_crc_tx)
   return -ENOMEM;
 }

 if (priv->devtype_data.quirks & MCP251XFD_QUIRK_CRC_REG)
  priv->map_reg = priv->map_crc;

 if (priv->devtype_data.quirks & MCP251XFD_QUIRK_CRC_RX)
  priv->map_rx = priv->map_crc;

 return 0;
}

static void mcp251xfd_regmap_destroy_crc(struct mcp251xfd_priv *priv)
{
 if (priv->map_buf_crc_rx) {
  devm_kfree(&priv->spi->dev, priv->map_buf_crc_rx);
  priv->map_buf_crc_rx = NULL;
 }
 if (priv->map_buf_crc_tx) {
  devm_kfree(&priv->spi->dev, priv->map_buf_crc_tx);
  priv->map_buf_crc_tx = NULL;
 }
}

int mcp251xfd_regmap_init(struct mcp251xfd_priv *priv)
{
 int err;

 if (mcp251xfd_regmap_use_nocrc(priv)) {
  err = mcp251xfd_regmap_init_nocrc(priv);

  if (err)
   return err;
 } else {
  mcp251xfd_regmap_destroy_nocrc(priv);
 }

 if (mcp251xfd_regmap_use_crc(priv)) {
  err = mcp251xfd_regmap_init_crc(priv);

  if (err)
   return err;
 } else {
  mcp251xfd_regmap_destroy_crc(priv);
 }

 return 0;
}