Hi All, Not sure if it has been reported, builds of alpha allmodconfig have failed to build next-20220818 with the error: drivers/base/regmap/regmap-mmio.c: In function 'regmap_mmio_noinc_write': drivers/base/regmap/regmap-mmio.c:221:17: error: implicit declaration of function 'writesb'; did you mean 'writeb'? [-Werror=implicit-function-declaration] 221 | writesb(ctx->regs + reg, (const u8 *)val, val_count); | ^~~~~~~ | writeb drivers/base/regmap/regmap-mmio.c:224:17: error: implicit declaration of function 'writesw'; did you mean 'writew'? [-Werror=implicit-function-declaration] 224 | writesw(ctx->regs + reg, (const u16 *)val, val_count); | ^~~~~~~ | writew drivers/base/regmap/regmap-mmio.c:227:17: error: implicit declaration of function 'writesl'; did you mean 'writel'? [-Werror=implicit-function-declaration] 227 | writesl(ctx->regs + reg, (const u32 *)val, val_count); | ^~~~~~~ | writel drivers/base/regmap/regmap-mmio.c:231:17: error: implicit declaration of function 'writesq'; did you mean 'writeq'? [-Werror=implicit-function-declaration] 231 | writesq(ctx->regs + reg, (const u64 *)val, val_count); | ^~~~~~~ | writeq drivers/base/regmap/regmap-mmio.c: In function 'regmap_mmio_noinc_read': drivers/base/regmap/regmap-mmio.c:358:17: error: implicit declaration of function 'readsb'; did you mean 'readb'? [-Werror=implicit-function-declaration] 358 | readsb(ctx->regs + reg, (u8 *)val, val_count); | ^~~~~~ | readb drivers/base/regmap/regmap-mmio.c:361:17: error: implicit declaration of function 'readsw'; did you mean 'readw'? [-Werror=implicit-function-declaration] 361 | readsw(ctx->regs + reg, (u16 *)val, val_count); | ^~~~~~ | readw drivers/base/regmap/regmap-mmio.c:364:17: error: implicit declaration of function 'readsl'; did you mean 'readl'? [-Werror=implicit-function-declaration] 364 | readsl(ctx->regs + reg, (u32 *)val, val_count); | ^~~~~~ | readl drivers/base/regmap/regmap-mmio.c:368:17: error: implicit declaration of function 'readsq'; did you mean 'readq'? [-Werror=implicit-function-declaration] 368 | readsq(ctx->regs + reg, (u64 *)val, val_count); | ^~~~~~ | readq git bisect pointed to 81c0386c1376 ("regmap: mmio: Support accelerared noinc operations") And, reverting that commit has fixed the build failure. I will be happy to test any patch or provide any extra log if needed. -- Regards Sudip