On 04/09/2016 11:06 AM, Takashi Iwai wrote:
On Fri, 08 Apr 2016 00:23:03 +0200, Harvey, Ryan wrote:
Hello,
I receive a set of checkpatch warnings against my switch fallthru structure in readable_registers(). I¹m able to eliminate these warnings with a preceding comment, but that does messy the code. Is there a method better than switch for accomplishing this?
static bool cs43130_readable_register(struct device *dev, unsigned int reg) { switch (reg) { case CS43130_DEVID_AB ... CS43130_SYS_CLK_CTL_1: case CS43130_PWDN_CTL: case CS43130_PLL_SET_1 ... CS43130_PLL_SET_6: case CS43130_PLL_SET_7: case CS43130_PLL_SET_8: case CS43130_PLL_SET_9: case CS43130_PLL_SET_10: case CS43130_CLKOUT_CTL: case CS43130_ASP_NUM_1 ... CS43130_ASP_FRAME_CONF: case CS43130_HP_OUT_CTL_1: case CS43130_PCM_FILT_OPT ... CS43130_PCM_PATH_CTL_2: case CS43130_CLASS_H_CTL: case CS43130_HP_DETECT ... CS43130_HP_STATUS: case CS43130_HP_LOAD_1: case CS43130_HP_LOAD_STAT: case CS43130_INT_MASK_1 ... CS43130_INT_MASK_5: return true; default: return false; } }
140: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_PLL_SET_7:
141: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_PLL_SET_8:
142: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_PLL_SET_9:
143: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_PLL_SET_10:
144: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_CLKOUT_CTL:
152: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_HP_OUT_CTL_1:
154: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_CLASS_H_CTL:
156: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_HP_LOAD_1:
160: [WARNING] Possible switch case/default not preceeded by break or fallthrough comment
- case CS43130_HP_LOAD_STAT:
You may ignore the warnings. The purpose of checkpatch is to improve the code readability, and what it suggests is exactly opposite.
It's a bug in checkpatch. It seems to get confused by the "...". The best approach to solving those warnings is to create a fix for checkpatch.