Re: [PATCH v8 1/3] lib: zstd: Add kernel-specific API
From: Oleksandr Natalenko <hidden>
Date: 2021-03-27 21:49:11
Also in:
linux-btrfs, linux-f2fs-devel, lkml, oe-kbuild-all
Subsystem:
library code, the rest, zstd · Maintainers:
Andrew Morton, Linus Torvalds, Nick Terrell, David Sterba
Hello. On Sat, Mar 27, 2021 at 05:48:01PM +0800, kernel test robot wrote:
quoted
quoted
ERROR: modpost: "ZSTD_maxCLevel" [fs/f2fs/f2fs.ko] undefined!
Since f2fs can be built as a module, the following correction seems to be needed:
diff --git a/lib/zstd/compress/zstd_compress.c b/lib/zstd/compress/zstd_compress.c
index 9c998052a0e5..584c92c51169 100644
--- a/lib/zstd/compress/zstd_compress.c
+++ b/lib/zstd/compress/zstd_compress.c
@@ -4860,6 +4860,7 @@ size_t ZSTD_endStream(ZSTD_CStream* zcs, ZSTD_outBuffer* output)
#define ZSTD_MAX_CLEVEL 22
int ZSTD_maxCLevel(void) { return ZSTD_MAX_CLEVEL; }
+EXPORT_SYMBOL(ZSTD_maxCLevel);
int ZSTD_minCLevel(void) { return (int)-ZSTD_TARGETLENGTH_MAX; }
static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEVEL+1] = {
Not sure if the same should be done for `ZSTD_minCLevel()` since I don't see it being used anywhere else. -- Oleksandr Natalenko (post-factum)