Function prototype or declaration at include/linux/mailbox_client.h, line 49 References: drivers/crypto/bcm/cipher.c, line 4550 drivers/crypto/bcm/cipher.c, line 4561 drivers/dma/bcm-sba-raid.c, line 1750 drivers/dma/bcm-sba-raid.c, line 1764 drivers/firmware/arm_scpi.c, line 898 drivers/firmware/raspberrypi.c, line 220 drivers/firmware/tegra/bpmp.c, line 847 drivers/firmware/ti_sci.c, line 1941 drivers/firmware/ti_sci.c, line 1943 drivers/firmware/ti_sci.c, line 1972 drivers/firmware/ti_sci.c, line 1973 drivers/hwmon/xgene-hwmon.c, line 770 drivers/hwmon/xgene-hwmon.c, line 786 drivers/i2c/busses/i2c-xgene-slimpro.c, line 576 drivers/i2c/busses/i2c-xgene-slimpro.c, line 590 drivers/mailbox/mailbox-test.c, line 422 drivers/mailbox/mailbox-test.c, line 424 drivers/mailbox/mailbox.c, line 363 drivers/mailbox/mailbox.c, line 407 drivers/mailbox/mailbox.c, line 427 drivers/mailbox/mailbox.c, line 510 drivers/mailbox/omap-mailbox.c, line 458 drivers/remoteproc/omap_remoteproc.c, line 158 drivers/remoteproc/omap_remoteproc.c, line 175 drivers/remoteproc/st_remoteproc.c, line 372 drivers/remoteproc/st_remoteproc.c, line 393 drivers/rpmsg/qcom_glink_native.c, line 1637 drivers/soc/qcom/smp2p.c, line 562 drivers/soc/qcom/smp2p.c, line 582 drivers/soc/ti/wkup_m3_ipc.c, line 471 drivers/soc/ti/wkup_m3_ipc.c, line 477 include/linux/mailbox_client.h, line 49