linux-kernel - [PATCH] lib/zlib: remove redundation assignement of avail_in dfltcc

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Date:   Sat, 28 Jan 2023 08:50:48 -0800
From:   Tom Rix <trix@...hat.com>
To:     zaslonko@...ux.ibm.com, akpm@...ux-foundation.org,
        iii@...ux.ibm.com
Cc:     linux-kernel@...r.kernel.org, Tom Rix <trix@...hat.com>
Subject: [PATCH] lib/zlib: remove redundation assignement of avail_in dfltcc_gdht()

cppcheck reports
lib/zlib_dfltcc/dfltcc_deflate.c:65:21: warning: Redundant assignment of 'avail_in' to itself. [selfAssignment]
    size_t avail_in = avail_in = strm->avail_in;

Only setting avail_in once is needed.

Fixes: aa5b395b69b6 ("lib/zlib: add s390 hardware support for kernel zlib_deflate")
Signed-off-by: Tom Rix <trix@...hat.com>
---
 lib/zlib_dfltcc/dfltcc_deflate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/zlib_dfltcc/dfltcc_deflate.c b/lib/zlib_dfltcc/dfltcc_deflate.c
index 80924f067c24..b732b6d9e35d 100644
--- a/lib/zlib_dfltcc/dfltcc_deflate.c
+++ b/lib/zlib_dfltcc/dfltcc_deflate.c
@@ -62,7 +62,7 @@ static void dfltcc_gdht(
 {
     deflate_state *state = (deflate_state *)strm->state;
     struct dfltcc_param_v0 *param = &GET_DFLTCC_STATE(state)->param;
-    size_t avail_in = avail_in = strm->avail_in;
+    size_t avail_in = strm->avail_in;
 
     dfltcc(DFLTCC_GDHT,
            param, NULL, NULL,
-- 
2.26.3