checks: centralize printing of property names in failure messages

Some failure messages apply to a specific property. Add a FAIL_PROP()
macro for failure messages which are specific to a property. With that,
failure messages can print the property name in a standard way. Once
source line numbers are supported, then the file and line number of the
property can be used instead of the node file and line number.

Convert the existing messages related to properties to use the FAIL_PROP
macro and reword the messages as necessary.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

checks.c

@@ -72,8 +72,9 @@ struct check {
 #define CHECK(nm_, fn_, d_, ...) \
 	CHECK_ENTRY(nm_, fn_, d_, false, false, __VA_ARGS__)
 
-static inline void  PRINTF(4, 5) check_msg(struct check *c, struct dt_info *dti,
+static inline void  PRINTF(5, 6) check_msg(struct check *c, struct dt_info *dti,
 					   struct node *node,
+					   struct property *prop,
 					   const char *fmt, ...)
 {
 	va_list ap;
@@ -84,8 +85,12 @@ static inline void  PRINTF(4, 5) check_msg(struct check *c, struct dt_info *dti,
 		fprintf(stderr, "%s: %s (%s): ",
 			strcmp(dti->outname, "-") ? dti->outname : "<stdout>",
 			(c->error) ? "ERROR" : "Warning", c->name);
-		if (node)
-			fprintf(stderr, "%s: ", node->fullpath);
+		if (node) {
+			fprintf(stderr, "%s", node->fullpath);
+			if (prop)
+				fprintf(stderr, ":%s", prop->name);
+			fputs(": ", stderr);
+		}
 		vfprintf(stderr, fmt, ap);
 		fprintf(stderr, "\n");
 	}
@@ -96,9 +101,17 @@ static inline void  PRINTF(4, 5) check_msg(struct check *c, struct dt_info *dti,
 	do {								\
 		TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__);	\
 		(c)->status = FAILED;					\
-		check_msg((c), dti, node, __VA_ARGS__);			\
+		check_msg((c), dti, node, NULL, __VA_ARGS__);		\
+	} while (0)
+
+#define FAIL_PROP(c, dti, node, prop, ...)				\
+	do {								\
+		TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__);	\
+		(c)->status = FAILED;					\
+		check_msg((c), dti, node, prop, __VA_ARGS__);		\
 	} while (0)
 
+
 static void check_nodes_props(struct check *c, struct dt_info *dti, struct node *node)
 {
 	struct node *child;
@@ -129,7 +142,7 @@ static bool run_check(struct check *c, struct dt_info *dti)
 		error = error || run_check(prq, dti);
 		if (prq->status != PASSED) {
 			c->status = PREREQ;
-			check_msg(c, dti, NULL, "Failed prerequisite '%s'",
+			check_msg(c, dti, NULL, NULL, "Failed prerequisite '%s'",
 				  c->prereq[i]->name);
 		}
 	}
@@ -174,7 +187,7 @@ static void check_is_string(struct check *c, struct dt_info *dti,
 		return; /* Not present, assumed ok */
 
 	if (!data_is_one_string(prop->val))
-		FAIL(c, dti, node, "\"%s\" property is not a string", propname);
+		FAIL_PROP(c, dti, node, prop, "property is not a string");
 }
 #define WARNING_IF_NOT_STRING(nm, propname) \
 	WARNING(nm, check_is_string, (propname))
@@ -198,8 +211,7 @@ static void check_is_string_list(struct check *c, struct dt_info *dti,
 	while (rem > 0) {
 		l = strnlen(str, rem);
 		if (l == rem) {
-			FAIL(c, dti, node, "\"%s\" property is not a string list",
-			     propname);
+			FAIL_PROP(c, dti, node, prop, "property is not a string list");
 			break;
 		}
 		rem -= l + 1;
@@ -222,8 +234,7 @@ static void check_is_cell(struct check *c, struct dt_info *dti,
 		return; /* Not present, assumed ok */
 
 	if (prop->val.len != sizeof(cell_t))
-		FAIL(c, dti, node, "\"%s\" property is not a single cell",
-		     propname);
+		FAIL_PROP(c, dti, node, prop, "property is not a single cell");
 }
 #define WARNING_IF_NOT_CELL(nm, propname) \
 	WARNING(nm, check_is_cell, (propname))
@@ -258,8 +269,7 @@ static void check_duplicate_property_names(struct check *c, struct dt_info *dti,
 			if (prop2->deleted)
 				continue;
 			if (streq(prop->name, prop2->name))
-				FAIL(c, dti, node, "Duplicate property name %s",
-				     prop->name);
+				FAIL_PROP(c, dti, node, prop, "Duplicate property name");
 		}
 	}
 }
@@ -332,8 +342,8 @@ static void check_property_name_chars(struct check *c, struct dt_info *dti,
 		int n = strspn(prop->name, c->data);
 
 		if (n < strlen(prop->name))
-			FAIL(c, dti, node, "Bad character '%c' in property name \"%s\"",
-			     prop->name[n], prop->name);
+			FAIL_PROP(c, dti, node, prop, "Bad character '%c' in property name",
+				  prop->name[n]);
 	}
 }
 ERROR(property_name_chars, check_property_name_chars, PROPNODECHARS);
@@ -364,8 +374,8 @@ static void check_property_name_chars_strict(struct check *c,
 			n = strspn(name, c->data);
 		}
 		if (n < strlen(name))
-			FAIL(c, dti, node, "Character '%c' not recommended in property name \"%s\"",
-			     name[n], prop->name);
+			FAIL_PROP(c, dti, node, prop, "Character '%c' not recommended in property name",
+				  name[n]);
 	}
 }
 CHECK(property_name_chars_strict, check_property_name_chars_strict, PROPNODECHARSSTRICT);
@@ -438,8 +448,8 @@ static cell_t check_phandle_prop(struct check *c, struct dt_info *dti,
 		return 0;
 
 	if (prop->val.len != sizeof(cell_t)) {
-		FAIL(c, dti, node, "bad length (%d) %s property",
-		     prop->val.len, prop->name);
+		FAIL_PROP(c, dti, node, prop, "bad length (%d) %s property",
+			  prop->val.len, prop->name);
 		return 0;
 	}
 
@@ -464,7 +474,7 @@ static cell_t check_phandle_prop(struct check *c, struct dt_info *dti,
 	phandle = propval_cell(prop);
 
 	if ((phandle == 0) || (phandle == -1)) {
-		FAIL(c, dti, node, "bad value (0x%x) in %s property",
+		FAIL_PROP(c, dti, node, prop, "bad value (0x%x) in %s property",
 		     phandle, prop->name);
 		return 0;
 	}
@@ -644,14 +654,12 @@ static void check_alias_paths(struct check *c, struct dt_info *dti,
 
 	for_each_property(node, prop) {
 		if (!prop->val.val || !get_node_by_path(dti->dt, prop->val.val)) {
-			FAIL(c, dti, node, "aliases property '%s' is not a valid node (%s)",
-			     prop->name, prop->val.val);
+			FAIL_PROP(c, dti, node, prop, "aliases property is not a valid node (%s)",
+				  prop->val.val);
 			continue;
 		}
 		if (strspn(prop->name, LOWERCASE DIGITS "-") != strlen(prop->name))
-			FAIL(c, dti, node, "aliases property name '%s' is not valid",
-			     prop->name);
-
+			FAIL(c, dti, node, "aliases property name must include only lowercase and '-'");
 	}
 }
 WARNING(alias_paths, check_alias_paths, NULL);
@@ -696,16 +704,16 @@ static void check_reg_format(struct check *c, struct dt_info *dti,
 	}
 
 	if (prop->val.len == 0)
-		FAIL(c, dti, node, "\"reg\" property is empty");
+		FAIL_PROP(c, dti, node, prop, "property is empty");
 
 	addr_cells = node_addr_cells(node->parent);
 	size_cells = node_size_cells(node->parent);
 	entrylen = (addr_cells + size_cells) * sizeof(cell_t);
 
 	if (!entrylen || (prop->val.len % entrylen) != 0)
-		FAIL(c, dti, node, "\"reg\" property has invalid length (%d bytes) "
-		     "(#address-cells == %d, #size-cells == %d)",
-		     prop->val.len, addr_cells, size_cells);
+		FAIL_PROP(c, dti, node, prop, "property has invalid length (%d bytes) "
+			  "(#address-cells == %d, #size-cells == %d)",
+			  prop->val.len, addr_cells, size_cells);
 }
 WARNING(reg_format, check_reg_format, NULL, &addr_size_cells);
 
@@ -720,7 +728,7 @@ static void check_ranges_format(struct check *c, struct dt_info *dti,
 		return;
 
 	if (!node->parent) {
-		FAIL(c, dti, node, "Root node has a \"ranges\" property");
+		FAIL_PROP(c, dti, node, prop, "Root node has a \"ranges\" property");
 		return;
 	}
 
@@ -732,20 +740,20 @@ static void check_ranges_format(struct check *c, struct dt_info *dti,
 
 	if (prop->val.len == 0) {
 		if (p_addr_cells != c_addr_cells)
-			FAIL(c, dti, node, "empty \"ranges\" property but its "
-			     "#address-cells (%d) differs from %s (%d)",
-			     c_addr_cells, node->parent->fullpath,
-			     p_addr_cells);
+			FAIL_PROP(c, dti, node, prop, "empty \"ranges\" property but its "
+				  "#address-cells (%d) differs from %s (%d)",
+				  c_addr_cells, node->parent->fullpath,
+				  p_addr_cells);
 		if (p_size_cells != c_size_cells)
-			FAIL(c, dti, node, "empty \"ranges\" property but its "
-			     "#size-cells (%d) differs from %s (%d)",
-			     c_size_cells, node->parent->fullpath,
-			     p_size_cells);
+			FAIL_PROP(c, dti, node, prop, "empty \"ranges\" property but its "
+				  "#size-cells (%d) differs from %s (%d)",
+				  c_size_cells, node->parent->fullpath,
+				  p_size_cells);
 	} else if ((prop->val.len % entrylen) != 0) {
-		FAIL(c, dti, node, "\"ranges\" property has invalid length (%d bytes) "
-		     "(parent #address-cells == %d, child #address-cells == %d, "
-		     "#size-cells == %d)", prop->val.len,
-		     p_addr_cells, c_addr_cells, c_size_cells);
+		FAIL_PROP(c, dti, node, prop, "\"ranges\" property has invalid length (%d bytes) "
+			  "(parent #address-cells == %d, child #address-cells == %d, "
+			  "#size-cells == %d)", prop->val.len,
+			  p_addr_cells, c_addr_cells, c_size_cells);
 	}
 }
 WARNING(ranges_format, check_ranges_format, NULL, &addr_size_cells);
@@ -784,14 +792,14 @@ static void check_pci_bridge(struct check *c, struct dt_info *dti, struct node *
 		return;
 	}
 	if (prop->val.len != (sizeof(cell_t) * 2)) {
-		FAIL(c, dti, node, "bus-range must be 2 cells");
+		FAIL_PROP(c, dti, node, prop, "value must be 2 cells");
 		return;
 	}
 	cells = (cell_t *)prop->val.val;
 	if (fdt32_to_cpu(cells[0]) > fdt32_to_cpu(cells[1]))
-		FAIL(c, dti, node, "bus-range 1st cell must be less than or equal to 2nd cell");
+		FAIL_PROP(c, dti, node, prop, "1st cell must be less than or equal to 2nd cell");
 	if (fdt32_to_cpu(cells[1]) > 0xff)
-		FAIL(c, dti, node, "bus-range maximum bus number must be less than 256");
+		FAIL_PROP(c, dti, node, prop, "maximum bus number must be less than 256");
 }
 WARNING(pci_bridge, check_pci_bridge, NULL,
 	&device_type_is_string, &addr_size_cells);
@@ -821,8 +829,8 @@ static void check_pci_device_bus_num(struct check *c, struct dt_info *dti, struc
 		max_bus = fdt32_to_cpu(cells[0]);
 	}
 	if ((bus_num < min_bus) || (bus_num > max_bus))
-		FAIL(c, dti, node, "PCI bus number %d out of range, expected (%d - %d)",
-		     bus_num, min_bus, max_bus);
+		FAIL_PROP(c, dti, node, prop, "PCI bus number %d out of range, expected (%d - %d)",
+			  bus_num, min_bus, max_bus);
 }
 WARNING(pci_device_bus_num, check_pci_device_bus_num, NULL, &reg_format, &pci_bridge);
 
@@ -845,16 +853,16 @@ static void check_pci_device_reg(struct check *c, struct dt_info *dti, struct no
 
 	cells = (cell_t *)prop->val.val;
 	if (cells[1] || cells[2])
-		FAIL(c, dti, node, "PCI reg config space address cells 2 and 3 must be 0");
+		FAIL_PROP(c, dti, node, prop, "PCI reg config space address cells 2 and 3 must be 0");
 
 	reg = fdt32_to_cpu(cells[0]);
 	dev = (reg & 0xf800) >> 11;
 	func = (reg & 0x700) >> 8;
 
 	if (reg & 0xff000000)
-		FAIL(c, dti, node, "PCI reg address is not configuration space");
+		FAIL_PROP(c, dti, node, prop, "PCI reg address is not configuration space");
 	if (reg & 0x000000ff)
-		FAIL(c, dti, node, "PCI reg config space address register number must be 0");
+		FAIL_PROP(c, dti, node, prop, "PCI reg config space address register number must be 0");
 
 	if (func == 0) {
 		snprintf(unit_addr, sizeof(unit_addr), "%x", dev);
@@ -1028,8 +1036,8 @@ static void check_obsolete_chosen_interrupt_controller(struct check *c,
 
 	prop = get_property(chosen, "interrupt-controller");
 	if (prop)
-		FAIL(c, dti, node, "/chosen has obsolete \"interrupt-controller\" "
-		     "property");
+		FAIL_PROP(c, dti, node, prop,
+			  "/chosen has obsolete \"interrupt-controller\" property");
 }
 WARNING(obsolete_chosen_interrupt_controller,
 	check_obsolete_chosen_interrupt_controller, NULL);
@@ -1075,7 +1083,7 @@ static void check_chosen_node_stdout_path(struct check *c, struct dt_info *dti,
 		prop = get_property(node, "linux,stdout-path");
 		if (!prop)
 			return;
-		FAIL(c, dti, node, "Use 'stdout-path' instead of 'linux,stdout-path'");
+		FAIL_PROP(c, dti, node, prop, "Use 'stdout-path' instead");
 	}
 
 	c->data = prop->name;
@@ -1099,8 +1107,9 @@ static void check_property_phandle_args(struct check *c,
 	int cell, cellsize = 0;
 
 	if (prop->val.len % sizeof(cell_t)) {
-		FAIL(c, dti, node, "property '%s' size (%d) is invalid, expected multiple of %zu",
-		     prop->name, prop->val.len, sizeof(cell_t));
+		FAIL_PROP(c, dti, node, prop,
+			  "property size (%d) is invalid, expected multiple of %zu",
+			  prop->val.len, sizeof(cell_t));
 		return;
 	}
 
@@ -1131,14 +1140,16 @@ static void check_property_phandle_args(struct check *c,
 					break;
 			}
 			if (!m)
-				FAIL(c, dti, node, "Property '%s', cell %d is not a phandle reference",
-				     prop->name, cell);
+				FAIL_PROP(c, dti, node, prop,
+					  "cell %d is not a phandle reference",
+					  cell);
 		}
 
 		provider_node = get_node_by_phandle(root, phandle);
 		if (!provider_node) {
-			FAIL(c, dti, node, "Could not get phandle node for %s(cell %d)",
-			     prop->name, cell);
+			FAIL_PROP(c, dti, node, prop,
+				  "Could not get phandle node for (cell %d)",
+				  cell);
 			break;
 		}
 
@@ -1156,8 +1167,9 @@ static void check_property_phandle_args(struct check *c,
 		}
 
 		if (prop->val.len < ((cell + cellsize + 1) * sizeof(cell_t))) {
-			FAIL(c, dti, node, "%s property size (%d) too small for cell size %d",
-			     prop->name, prop->val.len, cellsize);
+			FAIL_PROP(c, dti, node, prop,
+				  "property size (%d) too small for cell size %d",
+				  prop->val.len, cellsize);
 		}
 	}
 }
@@ -1259,8 +1271,8 @@ static void check_deprecated_gpio_property(struct check *c,
 		if (!streq(str, "gpio"))
 			continue;
 
-		FAIL(c, dti, node, "'[*-]gpio' is deprecated, use '[*-]gpios' instead for %s",
-		     prop->name);
+		FAIL_PROP(c, dti, node, prop,
+			  "'[*-]gpio' is deprecated, use '[*-]gpios' instead");
 	}
 
 }
@@ -1294,8 +1306,8 @@ static void check_interrupts_property(struct check *c,
 		return;
 
 	if (irq_prop->val.len % sizeof(cell_t))
-		FAIL(c, dti, node, "property '%s' size (%d) is invalid, expected multiple of %zu",
-		     irq_prop->name, irq_prop->val.len, sizeof(cell_t));
+		FAIL_PROP(c, dti, node, irq_prop, "size (%d) is invalid, expected multiple of %zu",
+		     irq_prop->val.len, sizeof(cell_t));
 
 	while (parent && !prop) {
 		if (parent != node && node_is_interrupt_provider(parent)) {
@@ -1313,7 +1325,7 @@ static void check_interrupts_property(struct check *c,
 
 			irq_node = get_node_by_phandle(root, phandle);
 			if (!irq_node) {
-				FAIL(c, dti, node, "Bad interrupt-parent phandle");
+				FAIL_PROP(c, dti, parent, prop, "Bad phandle");
 				return;
 			}
 			if (!node_is_interrupt_provider(irq_node))
@@ -1339,9 +1351,9 @@ static void check_interrupts_property(struct check *c,
 
 	irq_cells = propval_cell(prop);
 	if (irq_prop->val.len % (irq_cells * sizeof(cell_t))) {
-		FAIL(c, dti, node,
-		     "interrupts size is (%d), expected multiple of %d",
-		     irq_prop->val.len, (int)(irq_cells * sizeof(cell_t)));
+		FAIL_PROP(c, dti, node, prop,
+			  "size is (%d), expected multiple of %d",
+			  irq_prop->val.len, (int)(irq_cells * sizeof(cell_t)));
 	}
 }
 WARNING(interrupts_property, check_interrupts_property, &phandle_references);