From e12bc14b88d44e5c1456dccb59ff58103f6c6edc Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Tue, 31 Jan 2012 16:07:27 +0200 Subject: remoteproc: s/big switch/lookup table/ A lookup table would be easier to extend, and the resulting code is a bit cleaner. Reported-by: Grant Likely Signed-off-by: Ohad Ben-Cohen --- drivers/remoteproc/remoteproc_core.c | 45 ++++++++++++++++++------------------ 1 file changed, 23 insertions(+), 22 deletions(-) (limited to 'drivers/remoteproc') diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 567a3c59b4af..729911b67a9a 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -64,6 +64,8 @@ static DEFINE_KLIST(rprocs, klist_rproc_get, klist_rproc_put); typedef int (*rproc_handle_resources_t)(struct rproc *rproc, struct fw_resource *rsc, int len); +typedef int (*rproc_handle_resource_t)(struct rproc *rproc, + struct fw_resource *rsc); /* * This is the IOMMU fault handler we register with the IOMMU API @@ -658,44 +660,43 @@ free_mapping: return ret; } +/* + * A lookup table for resource handlers. The indices are defined in + * enum fw_resource_type. + */ +static rproc_handle_resource_t rproc_handle_rsc[] = { + [RSC_CARVEOUT] = rproc_handle_carveout, + [RSC_DEVMEM] = rproc_handle_devmem, + [RSC_TRACE] = rproc_handle_trace, + [RSC_VRING] = rproc_handle_vring, + [RSC_VIRTIO_DEV] = NULL, /* handled early upon registration */ +}; + /* handle firmware resource entries before booting the remote processor */ static int rproc_handle_boot_rsc(struct rproc *rproc, struct fw_resource *rsc, int len) { struct device *dev = rproc->dev; + rproc_handle_resource_t handler; int ret = 0; - while (len >= sizeof(*rsc)) { + for (; len >= sizeof(*rsc); rsc++, len -= sizeof(*rsc)) { dev_dbg(dev, "rsc: type %d, da 0x%llx, pa 0x%llx, len 0x%x, " "id %d, name %s, flags %x\n", rsc->type, rsc->da, rsc->pa, rsc->len, rsc->id, rsc->name, rsc->flags); - switch (rsc->type) { - case RSC_CARVEOUT: - ret = rproc_handle_carveout(rproc, rsc); - break; - case RSC_DEVMEM: - ret = rproc_handle_devmem(rproc, rsc); - break; - case RSC_TRACE: - ret = rproc_handle_trace(rproc, rsc); - break; - case RSC_VRING: - ret = rproc_handle_vring(rproc, rsc); - break; - case RSC_VIRTIO_DEV: - /* this one is handled early upon registration */ - break; - default: + if (rsc->type >= RSC_LAST) { dev_warn(dev, "unsupported resource %d\n", rsc->type); - break; + continue; } + handler = rproc_handle_rsc[rsc->type]; + if (!handler) + continue; + + ret = handler(rproc, rsc); if (ret) break; - - rsc++; - len -= sizeof(*rsc); } return ret; -- cgit v1.2.3