[M] Change in flashrom[master]: cli_classic.c: Factor out rom bus limits exceeded validation

[Edward O'Callaghan (Code Review)]

Edward O'Callaghan has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/68661 )

Change subject: cli_classic.c: Factor out rom bus limits exceeded validation
......................................................................

cli_classic.c: Factor out rom bus limits exceeded validation

Cave out relevant logic relating to validating the rom decode
limits fit within the common buses with certain flash-programmer
pairingings into it's own function.

Move the comment to the top of the new symbol while we are here
and rewrite the grammar to be a bit more understandable.

Change-Id: Iba1c3c8ab2edc094ede59156ae5e846900fc0777
Signed-off-by: Edward O'Callaghan 
---
M cli_classic.c
1 file changed, 43 insertions(+), 12 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/61/68661/1

diff --git a/cli_classic.c b/cli_classic.c
index 4d327f4..19551b5 100644
--- a/cli_classic.c
+++ b/cli_classic.c
@@ -560,6 +560,31 @@
    return limitexceeded;
 }

+/**
+ * Sometimes chip and programmer combinations share more than one bus in common.
+ * If the rom decode limit is exceed on all relevent buses then return true unless
+ * overriden with a force flag, otherwise return false.
+ */
+static bool max_rom_decode_limitexceeded(const struct flashctx *flash, bool force)
+{
+	const unsigned int limitexceeded = count_max_decode_exceedings(fill_flash, &max_rom_decode);
+
+	if (limitexceeded > 0 && !force) {
+		enum chipbustype commonbuses = fill_flash->mst->buses_supported & fill_flash->chip->bustype;
+
+		if ((bitcount(commonbuses) > limitexceeded)) {
+			msg_pdbg("There is at least one interface available which could support the size of\n"
+				 "the selected flash chip.\n");
+		}
+		msg_cerr("This flash chip is too big for this programmer (--verbose/-V gives details).\n"
+			 "Use --force/-f to override at your own risk.\n");
+
+		return true;
+	}
+
+	return false;
+}
+
 int main(int argc, char *argv[])
 {
    const struct flashchip *chip = NULL;
@@ -1058,18 +1083,7 @@

print_chip_support_status(fill_flash->chip);

-	unsigned int limitexceeded = count_max_decode_exceedings(fill_flash, &max_rom_decode);
-	if (limitexceeded > 0 && !force) {
-		enum chipbustype commonbuses = fill_flash->mst->buses_supported & fill_flash->chip->bustype;
-
-		/* Sometimes chip and programmer have more than one bus in common,
-		 * and the limit is not exceeded on all buses. Tell the user. */
-		if ((bitcount(commonbuses) > limitexceeded)) {
-			msg_pdbg("There is at least one interface available which could support the size of\n"
-				 "the selected flash chip.\n");
-		}
-		msg_cerr("This flash chip is too big for this programmer (--verbose/-V gives details).\n"
-			 "Use --force/-f to override at your own risk.\n");
+	if (max_rom_decode_limitexceeded(fill_flash, force)) {
    	ret = 1;
    	goto out_shutdown;
    }