diff options
| author | Leah Rowe <leah@libreboot.org> | 2023-09-19 16:05:34 +0100 |
|---|---|---|
| committer | Leah Rowe <leah@libreboot.org> | 2023-09-19 16:05:34 +0100 |
| commit | d9bed115018bae46ca6b20a9f8f55ee434dd8cfa (patch) | |
| tree | 15764c5ec6f64017d00b44909c91f2e74b78ebad /util/nvmutil | |
| parent | 5e8013601a7592721a908252625eb785ae9f7a8b (diff) | |
util/nvmutil: further optimise swap command
don't swap pointers at all. handle it in the for loop.
258 sloccount now, versus 261.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Diffstat (limited to 'util/nvmutil')
| -rw-r--r-- | util/nvmutil/nvmutil.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/util/nvmutil/nvmutil.c b/util/nvmutil/nvmutil.c index 79b0cee..36ef6b0 100644 --- a/util/nvmutil/nvmutil.c +++ b/util/nvmutil/nvmutil.c @@ -279,15 +279,12 @@ void writeGbeFile(void) { errno = 0; - if (cmd == writeGbeFile) { - err_if(!(validChecksum(0) || validChecksum(1))); - xorswap(gbe[0], gbe[1]); - } - for (int p = 0; p < 2; p++) { - if ((!nvmPartModified[p]) && (gbe[0] <= gbe[1])) + err_if((cmd == writeGbeFile) && !(validChecksum(0) || validChecksum(1))); + for (int p = 0, x = (cmd == writeGbeFile) ? 1 : 0; p < 2; p++) { + if ((!nvmPartModified[p]) && (cmd != writeGbeFile)) continue; - handle_endianness(p); - err_if(pwrite(fd, (uint8_t *) gbe[p], nf, p << 12) == -1); + handle_endianness(p^x); + err_if(pwrite(fd, (uint8_t *) gbe[p^x], nf, p << 12) == -1); } err_if(close(fd) == -1); } |