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authorColeman Kane <[email protected]>2021-12-05 15:18:46 -0500
committerBrian Behlendorf <[email protected]>2021-12-07 12:28:22 -0800
commita78f19d3ec8e5c0f82c860870f1ddc442ca45e25 (patch)
tree626336f5cc42f7c63f1acf943a7f8e1f59727729
parent1e767532f20030385897fea2cf84fb59b69bd13c (diff)
Linux 5.16: Resolve ZSTD_isError symbol collision in Linux kernel
Newer zstd code introduced in the main kernel tree now creates a symbol collision with ZSTD_isError in our ZSTD code. This change relabels our implementation with a ZFS-specific symbol name, and undoes some macro-based micro-optimizations that conflict with the attempt to rename our internal-use version. Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Coleman Kane <[email protected]> Closes #12819
-rw-r--r--module/zstd/include/zstd_compat_wrapper.h1
-rw-r--r--module/zstd/lib/zstd.c2
2 files changed, 1 insertions, 2 deletions
diff --git a/module/zstd/include/zstd_compat_wrapper.h b/module/zstd/include/zstd_compat_wrapper.h
index 71adc7804..339713590 100644
--- a/module/zstd/include/zstd_compat_wrapper.h
+++ b/module/zstd/include/zstd_compat_wrapper.h
@@ -406,6 +406,7 @@
zfs_ZSTD_insertAndFindFirstIndex_internal
#define ZSTD_insertBlock zfs_ZSTD_insertBlock
#define ZSTD_invalidateRepCodes zfs_ZSTD_invalidateRepCodes
+#define ZSTD_isError zfs_ZSTD_isError
#define ZSTD_isFrame zfs_ZSTD_isFrame
#define ZSTD_ldm_adjustParameters zfs_ZSTD_ldm_adjustParameters
#define ZSTD_ldm_blockCompress zfs_ZSTD_ldm_blockCompress
diff --git a/module/zstd/lib/zstd.c b/module/zstd/lib/zstd.c
index acdd4d9da..2766e5b74 100644
--- a/module/zstd/lib/zstd.c
+++ b/module/zstd/lib/zstd.c
@@ -6340,7 +6340,6 @@ extern "C" {
/* ---- static assert (debug) --- */
#define ZSTD_STATIC_ASSERT(c) DEBUG_STATIC_ASSERT(c)
-#define ZSTD_isError ERR_isError /* for inlining */
#define FSE_isError ERR_isError
#define HUF_isError ERR_isError
@@ -7347,7 +7346,6 @@ const char* ZSTD_versionString(void) { return ZSTD_VERSION_STRING; }
/*-****************************************
* ZSTD Error Management
******************************************/
-#undef ZSTD_isError /* defined within zstd_internal.h */
/*! ZSTD_isError() :
* tells if a return value is an error code
* symbol is required for external callers */