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zlib: export S390 symbols for zlib modules

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Fix build errors when ZLIB_INFLATE=m and ZLIB_DEFLATE=m and ZLIB_DFLTCC=y
by exporting the 2 needed symbols in dfltcc_inflate.c.

Fixes these build errors:

  ERROR: modpost: "dfltcc_inflate" [lib/zlib_inflate/zlib_inflate.ko] undefined!
  ERROR: modpost: "dfltcc_can_inflate" [lib/zlib_inflate/zlib_inflate.ko] undefined!

Fixes: 1261961000 ("lib/zlib: add s390 hardware support for kernel zlib_inflate")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Link: https://lkml.kernel.org/r/20201123191712.4882-1-rdunlap@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Randy Dunlap 2020-12-05 22:14:38 -08:00 committed by Linus Torvalds
parent 33256ce194
commit 11fb479ff5
1 changed files with 3 additions and 0 deletions
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3
lib/zlib_dfltcc/dfltcc_inflate.c
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@ -4,6 +4,7 @@
#include "dfltcc_util.h" #include "dfltcc_util.h"
#include "dfltcc.h" #include "dfltcc.h"
#include <asm/setup.h> #include <asm/setup.h>
#include <linux/export.h>
#include <linux/zutil.h> #include <linux/zutil.h>
/* /*
@ -29,6 +30,7 @@ int dfltcc_can_inflate(
return is_bit_set(dfltcc_state->af.fns, DFLTCC_XPND) && return is_bit_set(dfltcc_state->af.fns, DFLTCC_XPND) &&
is_bit_set(dfltcc_state->af.fmts, DFLTCC_FMT0); is_bit_set(dfltcc_state->af.fmts, DFLTCC_FMT0);
} }
EXPORT_SYMBOL(dfltcc_can_inflate);
static int dfltcc_was_inflate_used( static int dfltcc_was_inflate_used(
z_streamp strm z_streamp strm
@ -147,3 +149,4 @@ dfltcc_inflate_action dfltcc_inflate(
return (cc == DFLTCC_CC_OP1_TOO_SHORT || cc == DFLTCC_CC_OP2_TOO_SHORT) ? return (cc == DFLTCC_CC_OP1_TOO_SHORT || cc == DFLTCC_CC_OP2_TOO_SHORT) ?
DFLTCC_INFLATE_BREAK : DFLTCC_INFLATE_CONTINUE; DFLTCC_INFLATE_BREAK : DFLTCC_INFLATE_CONTINUE;
} }
EXPORT_SYMBOL(dfltcc_inflate);