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fs/squashfs: sqfs_decompressor: simplify code

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Switch to if (CONFIG_IS_ENABLED()) instead of #if when possible and
remove unnecessary cases.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: João Marcos Costa <joaomarcos.costa@bootlin.com>
This commit is contained in:
Richard Genoud 2026-03-13 11:42:24 +01:00 committed by Tom Rini
parent f0b4f502bd
commit 0fe2801730
1 changed files with 12 additions and 37 deletions
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49
fs/squashfs/sqfs_decompressor.c
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@ -33,57 +33,32 @@ int sqfs_decompressor_init(struct squashfs_ctxt *ctxt)
{
u16 comp_type = get_unaligned_le16(&ctxt->sblk->compression);
switch (comp_type) {
#if CONFIG_IS_ENABLED(LZO)
case SQFS_COMP_LZO:
break;
#endif
#if CONFIG_IS_ENABLED(ZLIB)
case SQFS_COMP_ZLIB:
break;
#endif
#if CONFIG_IS_ENABLED(LZ4)
case SQFS_COMP_LZ4:
break;
#endif
if (((CONFIG_IS_ENABLED(LZO) && comp_type == SQFS_COMP_LZO)) ||
((CONFIG_IS_ENABLED(ZLIB) && comp_type == SQFS_COMP_ZLIB)) ||
((CONFIG_IS_ENABLED(LZ4) && comp_type == SQFS_COMP_LZ4)))
return 0;
#if CONFIG_IS_ENABLED(ZSTD)
case SQFS_COMP_ZSTD:
if (comp_type == SQFS_COMP_ZSTD) {
ctxt->zstd_workspace = malloc(zstd_dctx_workspace_bound());
if (!ctxt->zstd_workspace)
return -ENOMEM;
break;
#endif
default:
printf("Error: unknown compression type.\n");
return -EINVAL;
return 0;
}
#endif
return 0;
printf("Error: unknown compression type.\n");
return -EINVAL;
}
void sqfs_decompressor_cleanup(struct squashfs_ctxt *ctxt)
{
#if CONFIG_IS_ENABLED(ZSTD)
u16 comp_type = get_unaligned_le16(&ctxt->sblk->compression);
switch (comp_type) {
#if CONFIG_IS_ENABLED(LZO)
case SQFS_COMP_LZO:
break;
#endif
#if CONFIG_IS_ENABLED(ZLIB)
case SQFS_COMP_ZLIB:
break;
#endif
#if CONFIG_IS_ENABLED(LZ4)
case SQFS_COMP_LZ4:
break;
#endif
#if CONFIG_IS_ENABLED(ZSTD)
case SQFS_COMP_ZSTD:
if (comp_type == SQFS_COMP_ZSTD)
free(ctxt->zstd_workspace);
break;
#endif
}
}
#if CONFIG_IS_ENABLED(ZLIB)