[dhowells-fs:fscache-iter 38/59] fs/fscache/read_helper.c:88:2-5: WARNING: Use BUG_ON instead of if condition followed by BUG.

[dhowells-fs:fscache-iter 38/59] fs/fscache/read_helper.c:88:2-5: WARNING: Use BUG_ON instead of if condition followed by BUG.

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
TO: David Howells <dhowells@redhat.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter
head:   fef70d709fde3f284e93e5baae6591f90e6e4a95
commit: 2c7d3b597c2d56663f17fb0c9921158e5304de04 [38/59] fscache: Add read helper
:::::: branch date: 20 hours ago
:::::: commit date: 23 hours ago
config: arc-randconfig-c003-20200627 (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>


coccinelle warnings: (new ones prefixed by >>)

>> fs/fscache/read_helper.c:88:2-5: WARNING: Use BUG_ON instead of if condition followed by BUG.
   Please make sure the condition has no side effects (see conditional BUG_ON definition in include/asm-generic/bug.h)

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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[PATCH] fscache: fix bugon.cocci warnings

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
TO: David Howells <dhowells@redhat.com>

From: kernel test robot <lkp@intel.com>

fs/fscache/read_helper.c:88:2-5: WARNING: Use BUG_ON instead of if condition followed by BUG.
Please make sure the condition has no side effects (see conditional BUG_ON definition in include/asm-generic/bug.h)

 Use BUG_ON instead of a if condition followed by BUG.

Semantic patch information:
 This makes an effort to find cases where BUG() follows an if
 condition on an expression and replaces the if condition and BUG()
 with a BUG_ON having the conditional expression of the if statement
 as argument.

Generated by: scripts/coccinelle/misc/bugon.cocci

Fixes: 2c7d3b597c2d ("fscache: Add read helper")
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter
head:   fef70d709fde3f284e93e5baae6591f90e6e4a95
commit: 2c7d3b597c2d56663f17fb0c9921158e5304de04 [38/59] fscache: Add read helper
:::::: branch date: 20 hours ago
:::::: commit date: 23 hours ago

Please take the patch only if it's a positive warning. Thanks!

 read_helper.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/fs/fscache/read_helper.c
+++ b/fs/fscache/read_helper.c
@@ -84,8 +84,7 @@ static void fscache_read_copy_to_cache(s
 
 	BUG_ON(work_pending(&req->work));
 	INIT_WORK(&req->work, fscache_do_read_copy_to_cache);
-	if (!queue_work(fscache_op_wq, &req->work))
-		BUG();
+	BUG_ON(!queue_work(fscache_op_wq, &req->work));
 }
 
 /*