[S] Change in flashrom[master]: flashrom: Fix probe_flash()

[Edward O'Callaghan (Code Review)]

Edward O'Callaghan has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/67361 )

Change subject: flashrom: Fix probe_flash()
......................................................................

flashrom: Fix probe_flash()

Change-Id: I99f54ae0e70ec8d089a9113a6d9e96bd79994418
Signed-off-by: Edward O'Callaghan 
---
M cli_classic.c
M flashrom.c
M include/flash.h
M libflashrom.c
4 files changed, 23 insertions(+), 8 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/61/67361/1

diff --git a/cli_classic.c b/cli_classic.c
index bac31d1..bb324f9 100644
--- a/cli_classic.c
+++ b/cli_classic.c
@@ -931,10 +931,13 @@
    msg_pdbg("The following protocols are supported: %s.\n", tempstr);
    free(tempstr);

+	/* TODO(quasisec): This cast works for the moment while types are isomorphic. */
+	struct flashrom_programmer *flashprog = (struct flashrom_programmer *)prog;
+
    for (j = 0; j < registered_master_count; j++) {
    	startchip = 0;
    	while (chipcount < (int)ARRAY_SIZE(flashes)) {
-			startchip = probe_flash(&registered_masters[j], startchip, &flashes[chipcount], 0);
+			startchip = probe_flash(flashprog, &registered_masters[j], startchip, &flashes[chipcount], 0);
    		if (startchip == -1)
    			break;
    		chipcount++;
@@ -977,7 +980,7 @@
    				  "chip, using the first one.\n");
    		for (j = 0; j < registered_master_count; j++) {
    			mst = &registered_masters[j];
-				startchip = probe_flash(mst, 0, &flashes[0], 1);
+				startchip = probe_flash(flashprog, mst, 0, &flashes[0], 1);
    			if (startchip != -1)
    				break;
    		}
diff --git a/flashrom.c b/flashrom.c
index 4706d89..9cff43a 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -707,11 +707,13 @@
    return ret;
 }

-int probe_flash(struct registered_master *mst, int startchip, struct flashctx *flash, int force)
+int probe_flash(const struct flashrom_programmer *const flashprog, struct registered_master *mst,
+		int startchip, struct flashctx *flash, int force)
 {
    const struct flashchip *chip;
    enum chipbustype buses_common;
    char *tmp;
+	const struct programmer_entry *prog = (struct programmer_entry *)flashprog;

for (chip = flashchips + startchip; chip && chip->name; chip++) {
    	if (chip_to_probe && strcmp(chip->name, chip_to_probe) != 0)
@@ -807,12 +809,12 @@
    	  flash->chip->vendor, flash->chip->name, flash->chip->total_size, tmp);
    free(tmp);
 #if CONFIG_INTERNAL == 1
-	if (programmer->map_flash_region == physmap)
+	if (prog->map_flash_region == physmap)
    	msg_cinfo("mapped at physical address 0x%0*" PRIxPTR ".\n",
    		  PRIxPTR_WIDTH, flash->physical_memory);
    else
 #endif
-		msg_cinfo("on %s.\n", programmer->name);
+		msg_cinfo("on %s.\n", prog->name);

/* Flash registers may more likely not be mapped if the chip was forced.
     * Lock info may be stored in registers, so avoid lock info printing. */
diff --git a/include/flash.h b/include/flash.h
index 79aaa64..ba1fb17 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -415,7 +415,7 @@
 void unmap_flash(struct flashctx *flash);
 int read_memmapped(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
 int erase_flash(struct flashctx *flash);
-int probe_flash(struct registered_master *mst, int startchip, struct flashctx *fill_flash, int force);
+int probe_flash(const struct flashrom_programmer *const flashprog, struct registered_master *mst, int startchip, struct flashctx *fill_flash, int force);
 int verify_range(struct flashctx *flash, const uint8_t *cmpbuf, unsigned int start, unsigned int len);
 void emergency_help_message(void);
 void print_version(void);
diff --git a/libflashrom.c b/libflashrom.c
index 2febf30..50da72e 100644
--- a/libflashrom.c
+++ b/libflashrom.c
@@ -244,10 +244,10 @@

for (i = 0; i < registered_master_count; ++i) {
    	int flash_idx = -1;
-		if (!ret || (flash_idx = probe_flash(&registered_masters[i], 0, *flashctx, 0)) != -1) {
+		if (!ret || (flash_idx = probe_flash(flashprog, &registered_masters[i], 0, *flashctx, 0)) != -1) {
    		ret = 0;
    		/* We found one chip, now check that there is no second match. */
-			if (probe_flash(&registered_masters[i], flash_idx + 1, &second_flashctx, 0) != -1) {
+			if (probe_flash(flashprog, &registered_masters[i], flash_idx + 1, &second_flashctx, 0) != -1) {
    			flashrom_layout_release(second_flashctx.default_layout);
    			free(second_flashctx.chip);
    			ret = 3;