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util/nvmutil: tidy up cmd_brick

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-04 02:06:33 +00:00
parent 2f782b8a01
commit 947211fc3c
1 changed files with 13 additions and 4 deletions
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util/nvmutil/nvmutil.c
+13 -4
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@@ -547,11 +547,20 @@ cmd_setchecksum(void)
static void static void
cmd_brick(void) cmd_brick(void)
{ {
if (!good_checksum(part)) uint16_t checksum_word;
err(ECANCELED, "brick p%d, file '%s'", part, fname);
set_word(NVM_CHECKSUM_WORD, part, if (!good_checksum(part)) {
((word(NVM_CHECKSUM_WORD, part)) ^ 0xFF)); err(ECANCELED,
"Part %d checksum already invalid in file '%s'",
part, fname);
}
/*
* We know checksum_word is valid, so we need only
* flip one bit to invalidate it.
*/
checksum_word = word(NVM_CHECKSUM_WORD, part);
set_word(NVM_CHECKSUM_WORD, part, checksum_word ^ 1);
} }
static void static void