All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Leonardo Brás" <leobras.c@gmail.com>
To: lkcamp@lists.libreplanetbr.org
Cc: Matthew Wilcox <willy6545@gmail.com>,
	Andy Lutomirski <luto@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>,
	linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org
Subject: [PATCH 4/4] Changes macro usage to avoid shadowing a variable.
Date: Tue, 16 Oct 2018 21:09:43 -0300	[thread overview]
Message-ID: <20181017000943.GA21382@WindFlash> (raw)

Changes the usage of DEF_FIELD_ADDR in this function to create a
reference and operate over it using an aux variable.
It also changes the loop logic used to find duplicates, to avoid
creating another variable.

Signed-off-by: Leonardo Brás <leobras.c@gmail.com>
---
 scripts/mod/file2alias.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 7be43697ff84..9ea1db2aefdb 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -641,25 +641,27 @@ static void do_pnp_card_entries(void *symval, unsigned long size,
 	unsigned int i;
 
 	device_id_check(mod->name, "pnp", size, id_size, symval);
+	DEF_FIELD_ADDR(symval, pnp_card_device_id, devs);
+	typeof(devs) devs_last;
 
 	for (i = 0; i < count; i++) {
 		unsigned int j;
-		DEF_FIELD_ADDR(symval + i*id_size, pnp_card_device_id, devs);
+		devs_last = devs + i * id_size;
 
 		for (j = 0; j < PNP_MAX_DEVICES; j++) {
-			const char *id = (char *)(*devs)[j].id;
-			int i2, j2;
+			const char *id = (char *)(*devs_last)[j].id;
+			int j2;
 			int dup = 0;
 
 			if (!id[0])
 				break;
 
 			/* find duplicate, already added value */
-			for (i2 = 0; i2 < i && !dup; i2++) {
-				DEF_FIELD_ADDR(symval + i2*id_size, pnp_card_device_id, devs);
+			while ((devs_last -= id_size) >= devs) {
 
 				for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) {
-					const char *id2 = (char *)(*devs)[j2].id;
+					const char *id2 =
+						(char *)(*devs_last)[j2].id;
 
 					if (!id2[0])
 						break;
-- 
2.19.1

             reply	other threads:[~2018-10-17  8:02 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-17  0:09 Leonardo Brás [this message]
2018-10-17  4:18 ` [Lkcamp] [PATCH 4/4] Changes macro usage to avoid shadowing a variable Helen Koike
2018-10-18  1:48   ` Leonardo Bras

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20181017000943.GA21382@WindFlash \
    --to=leobras.c@gmail.com \
    --cc=bp@alien8.de \
    --cc=hpa@zytor.com \
    --cc=linux-kbuild@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lkcamp@lists.libreplanetbr.org \
    --cc=luto@kernel.org \
    --cc=michal.lkml@markovi.net \
    --cc=mingo@redhat.com \
    --cc=tglx@linutronix.de \
    --cc=willy6545@gmail.com \
    --cc=x86@kernel.org \
    --cc=yamada.masahiro@socionext.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.