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util/nvmutil: do not write non-changes to disk

fsdg20230625
Leah Rowe 2023-01-28 21:19:29 +00:00
parent 3e150bf303
commit adc76e3814
1 changed files with 5 additions and 0 deletions
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5
util/nvmutil/nvmutil.c
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@ -129,6 +129,8 @@ main(int argc, char *argv[])
if (gbeFileModified)
writeGbeFile(&fd, FILENAME);
else if ((cmd != &cmd_dump))
printf("File `%s` not modified.\n", FILENAME);
nvmutil_exit:
if ((errno != 0) && (cmd != &cmd_dump))
@ -406,6 +408,9 @@ word(int pos16, int partnum)
void
setWord(int pos16, int partnum, uint16_t val16)
{
if (word(pos16, partnum) == val16)
return;
uint8_t *nbuf = (uint8_t *) gbe[partnum];
uint8_t val8[2] = {(uint8_t) (val16 & 0xff), (uint8_t) (val16 >> 8)};
uint16_t pos8 = pos16 << 1;