unimore/kernel-hacking-2024-linux-steffo
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kallsyms: avoid repeated calculation of array size for markers

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Introduce the markers_cnt variable for readability.

No functional change intended.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2024-07-20 19:30:12 +09:00
parent c8578539de
commit bde6fb37bb
1 changed files with 4 additions and 3 deletions
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7
scripts/kallsyms.c
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@ -393,7 +393,7 @@ static void write_src(void)
{
unsigned int i, k, off;
unsigned int best_idx[256];
unsigned int *markers;
unsigned int *markers, markers_cnt;
char buf[KSYM_NAME_LEN];
printf("#include <asm/bitsperlong.h>\n");
@ -413,7 +413,8 @@ static void write_src(void)
/* table of offset markers, that give the offset in the compressed stream
* every 256 symbols */
markers = malloc(sizeof(unsigned int) * ((table_cnt + 255) / 256));
markers_cnt = (table_cnt + 255) / 256;
markers = malloc(sizeof(*markers) * markers_cnt);
if (!markers) {
fprintf(stderr, "kallsyms failure: "
"unable to allocate required memory\n");
@ -469,7 +470,7 @@ static void write_src(void)
}
output_label("kallsyms_markers");
for (i = 0; i < ((table_cnt + 255) >> 8); i++)
for (i = 0; i < markers_cnt; i++)
printf("\t.long\t%u\n", markers[i]);
printf("\n");