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From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
To: linux-sparse@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: [PATCH v1 12/28] scope: no memset() needed after __alloc_scope()
Date: Tue, 19 May 2020 02:57:12 +0200	[thread overview]
Message-ID: <20200519005728.84594-13-luc.vanoostenryck@gmail.com> (raw)
In-Reply-To: <20200519005728.84594-1-luc.vanoostenryck@gmail.com>

When starting some scopes, the newly allocated struct is
memset'ed with zero but this is unneeded since the allocator
always returns zeroed memory.

Remove the unneeded call to memset().

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 scope.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/scope.c b/scope.c
index 420c0f5a3f51..0e4fb3b42150 100644
--- a/scope.c
+++ b/scope.c
@@ -68,7 +68,6 @@ void rebind_scope(struct symbol *sym, struct scope *new)
 static void start_scope(struct scope **s)
 {
 	struct scope *scope = __alloc_scope(0);
-	memset(scope, 0, sizeof(*scope));
 	scope->next = *s;
 	*s = scope;
 }
@@ -77,7 +76,6 @@ void start_file_scope(void)
 {
 	struct scope *scope = __alloc_scope(0);
 
-	memset(scope, 0, sizeof(*scope));
 	scope->next = &builtin_scope;
 	file_scope = scope;
 
-- 
2.26.2

  parent reply	other threads:[~2020-05-19  0:57 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-19  0:57 [SPARSE v2 00/28] detect invalid branches Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 01/28] misc: fix testcase typeof-safe Luc Van Oostenryck
2020-05-20  0:33   ` Ramsay Jones
2020-05-20 15:34     ` Ramsay Jones
2020-05-20 16:12       ` Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 02/28] misc: s/fntype/rettype/ Luc Van Oostenryck
2020-05-20  0:35   ` Ramsay Jones
2020-05-20 16:39     ` Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 03/28] misc: always use the node for current_fn Luc Van Oostenryck
2020-05-20  0:37   ` Ramsay Jones
2020-05-19  0:57 ` [PATCH v1 04/28] bad-goto: add testcase for 'jump inside discarded expression statement' Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 05/28] bad-goto: add testcases for linearization of invalid labels Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 06/28] bad-goto: reorganize testcases and add some more Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 07/28] bad-goto: do not linearize if the IR will be invalid Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 08/28] bad-goto: reorg test in evaluate_goto_statement() Luc Van Oostenryck
2020-05-19  0:57   ` Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 09/28] bad-goto: simplify testing of undeclared labels Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 10/28] bad-goto: do not linearize function with " Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 11/28] bad-goto: catch labels with reserved names Luc Van Oostenryck
2020-05-19  0:57 ` Luc Van Oostenryck [this message]
2020-05-19  0:57 ` [PATCH v1 13/28] scope: move scope opening/ending inside compound_statement() Luc Van Oostenryck
2020-05-19  0:57   ` Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 14/28] scope: extract bind_symbol_with_scope() from bind_symbol() Luc Van Oostenryck
2020-05-20  0:44   ` Ramsay Jones
2020-05-19  0:57 ` [PATCH v1 15/28] scope: __func__ is special Luc Van Oostenryck
2020-05-20  0:45   ` Ramsay Jones
2020-05-19  0:57 ` [PATCH v1 16/28] scope: __label__ " Luc Van Oostenryck
2020-05-20  0:47   ` Ramsay Jones
2020-05-19  0:57 ` [PATCH v1 17/28] scope: s/{start,end}_symbol_scope/{start,end}_block_scope/ Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 18/28] scope: make function_scope invalid outside functions Luc Van Oostenryck
2020-05-19  1:38   ` Linus Torvalds
2020-05-19 20:57     ` Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 19/28] scope: let labels have their own scope Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 20/28] scope: add is_in_scope() Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 21/28] scope: give a scope for labels & gotos Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 22/28] bad-goto: jumping inside a statemet expression is an error Luc Van Oostenryck
2020-05-20  0:53   ` Ramsay Jones
2020-05-20 16:37     ` Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 23/28] bad-goto: label expression inside a statement expression is UB Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 24/28] bad-goto: extract check_label_declaration() Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 25/28] bad-goto: check declaration of label expressions Luc Van Oostenryck
2020-05-20  0:56   ` Ramsay Jones
2020-05-19  0:57 ` [PATCH v1 26/28] bad-label: check for unused labels Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 27/28] bad-label: mark labels as used when needed Luc Van Oostenryck
2020-05-19  0:57 ` [PATCH v1 28/28] bad-label: respect attribute((unused)) Luc Van Oostenryck
2020-05-19  1:41 ` [SPARSE v2 00/28] detect invalid branches Linus Torvalds
2020-05-19 21:16   ` Luc Van Oostenryck

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