zephyr/.checkpatch.conf
Carles Cufi 3c420a4828 checkpatch: Adapt the braces check to Zephyr
scripts/checkpatch.pl was written originally for the Linux kernel, and
its code reflects the kernel's coding style. In particular, it has
checks for unneeded braces around single-statement if/else/for/while
conditions. In Zephyr however, braces are always required, and so the
checks needed modifying to verify the opposite condition.

In order to enable the now-compatible checks, we also remove the
--ignore BRACES statement in .checkpatch.conf.

Limitations: the current code works well if there are not conditional
statements (e.g. #if, #ifdef or #endif) next to the if/else/for/while
conditions. This is rarely the case, but triggers with the Bluetooth
controller in code like this:

```
 #if defined(CONFIG_BT_PERIPHERAL)
        if (!lll->is_hdcd)
 #endif /* CONFIG_BT_PERIPHERAL */
        {
```

```
        } else
 #endif /* CONFIG_BT_CTLR_PRIVACY */
        {

```

```
 #if defined(CONFIG_BT_CTLR_DF_ADV_CTE_TX)
        if (lll->cte_started) {
                radio_switch_complete(phy_s, 0, phy_s, 0);
        } else
 #endif /* CONFIG_BT_CTLR_DF_ADV_CTE_TX */
        {
```

```
 #ifdef DUAL_BANK
        while ((FLASH_STM32_REGS(dev)->SR1 & FLASH_SR_QW) ||
               (FLASH_STM32_REGS(dev)->SR2 & FLASH_SR_QW))
 #else
        while (FLASH_STM32_REGS(dev)->SR1 & FLASH_SR_QW)
 #endif
        {
```

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2024-12-30 21:46:47 +01:00

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--emacs
--summary-file
--show-types
--max-line-length=100
--min-conf-desc-length=1
--typedefsfile=scripts/checkpatch/typedefsfile
--ignore PRINTK_WITHOUT_KERN_LEVEL
--ignore SPLIT_STRING
--ignore VOLATILE
--ignore CONFIG_EXPERIMENTAL
--ignore PREFER_KERNEL_TYPES
--ignore PREFER_SECTION
--ignore AVOID_EXTERNS
--ignore NETWORKING_BLOCK_COMMENT_STYLE
--ignore DATE_TIME
--ignore MINMAX
--ignore CONST_STRUCT
--ignore FILE_PATH_CHANGES
--ignore SPDX_LICENSE_TAG
--ignore C99_COMMENT_TOLERANCE
--ignore REPEATED_WORD
--ignore UNDOCUMENTED_DT_STRING
--ignore DT_SPLIT_BINDING_PATCH
--ignore DT_SCHEMA_BINDING_PATCH
--ignore TRAILING_SEMICOLON
--ignore COMPLEX_MACRO
--ignore MULTISTATEMENT_MACRO_USE_DO_WHILE
--ignore ENOSYS
--ignore IS_ENABLED_CONFIG
--ignore EXPORT_SYMBOL