From 3ff4675d732291002d947f8837504376bfa8a43c Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Wed, 27 Jul 2022 17:24:23 +0200 Subject: [PATCH] lz4: Fix compile warning comparison of distinct pointer types MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In file included from include/linux/bitops.h:22, from include/log.h:15, from include/linux/printk.h:4, from include/common.h:20, from lib/lz4_wrapper.c:6: lib/lz4_wrapper.c: In function ‘ulz4fn’: include/linux/kernel.h:184:17: warning: comparison of distinct pointer types lacks a cast (void) (&_min1 == &_min2); \ ^~ lib/lz4_wrapper.c:104:18: note: in expansion of macro ‘min’ size_t size = min((ptrdiff_t)block_size, end - out); ^~~ Signed-off-by: Pali Rohár --- lib/lz4_wrapper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/lz4_wrapper.c b/lib/lz4_wrapper.c index 0d2a3655a8..67dea2ff39 100644 --- a/lib/lz4_wrapper.c +++ b/lib/lz4_wrapper.c @@ -80,7 +80,7 @@ int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn) } if (block_header & LZ4F_BLOCKUNCOMPRESSED_FLAG) { - size_t size = min((ptrdiff_t)block_size, end - out); + size_t size = min((ptrdiff_t)block_size, (ptrdiff_t)(end - out)); memcpy(out, in, size); out += size; if (size < block_size) { -- 2.39.5