powerpc's asm/prom.h brings some headers that it doesn't need itself.
Once those headers are removed from asm/prom.h, the following errors occur:
CC [M] drivers/scsi/cxlflash/ocxl_hw.o drivers/scsi/cxlflash/ocxl_hw.c: In function 'afu_map_irq': drivers/scsi/cxlflash/ocxl_hw.c:195:16: error: implicit declaration of function 'irq_create_mapping' [-Werror=implicit-function-declaration] 195 | virq = irq_create_mapping(NULL, irq->hwirq); | ^~~~~~~~~~~~~~~~~~ drivers/scsi/cxlflash/ocxl_hw.c:222:9: error: implicit declaration of function 'irq_dispose_mapping' [-Werror=implicit-function-declaration] 222 | irq_dispose_mapping(virq); | ^~~~~~~~~~~~~~~~~~~ drivers/scsi/cxlflash/ocxl_hw.c: In function 'afu_unmap_irq': drivers/scsi/cxlflash/ocxl_hw.c:264:13: error: implicit declaration of function 'irq_find_mapping'; did you mean 'is_cow_mapping'? [-Werror=implicit-function-declaration] 264 | if (irq_find_mapping(NULL, irq->hwirq)) { | ^~~~~~~~~~~~~~~~ | is_cow_mapping cc1: some warnings being treated as errors
Fix it by including linux/irqdomain.h
Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu --- drivers/scsi/cxlflash/ocxl_hw.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c index 244fc27215dc..631eda2d467e 100644 --- a/drivers/scsi/cxlflash/ocxl_hw.c +++ b/drivers/scsi/cxlflash/ocxl_hw.c @@ -16,6 +16,7 @@ #include <linux/poll.h> #include <linux/sched/signal.h> #include <linux/interrupt.h> +#include <linux/irqdomain.h> #include <asm/xive.h> #include <misc/ocxl.h>