Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 45CD9C6379F for ; Tue, 14 Feb 2023 23:01:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233248AbjBNXBY (ORCPT ); Tue, 14 Feb 2023 18:01:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232662AbjBNXAj (ORCPT ); Tue, 14 Feb 2023 18:00:39 -0500 Received: from hosting.gsystem.sk (hosting.gsystem.sk [212.5.213.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E6AAB303F1; Tue, 14 Feb 2023 15:00:28 -0800 (PST) Received: from gsql.ggedos.sk (off-20.infotel.telecom.sk [212.5.213.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by hosting.gsystem.sk (Postfix) with ESMTPSA id CC2487A072D; Wed, 15 Feb 2023 00:00:20 +0100 (CET) From: Ondrej Zary To: Damien Le Moal Cc: Christoph Hellwig , Sergey Shtylyov , Jens Axboe , Tim Waugh , linux-block@vger.kernel.org, linux-parport@lists.infradead.org, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 16/18] pata_parport: remove scratch parameter from test_proto() Date: Wed, 15 Feb 2023 00:00:08 +0100 Message-Id: <20230214230010.20318-17-linux@zary.sk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20230214230010.20318-1-linux@zary.sk> References: <20230214230010.20318-1-linux@zary.sk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Don't pass around a pointer to scratch buffer. Use local buffers in protocols that need it. Signed-off-by: Ondrej Zary --- drivers/ata/pata_parport/bpck.c | 2 +- drivers/ata/pata_parport/epat.c | 3 ++- drivers/ata/pata_parport/epia.c | 3 ++- drivers/ata/pata_parport/friq.c | 3 ++- drivers/ata/pata_parport/frpw.c | 3 ++- drivers/ata/pata_parport/pata_parport.c | 23 +++++++++++------------ include/linux/pata_parport.h | 2 +- 7 files changed, 21 insertions(+), 18 deletions(-) diff --git a/drivers/ata/pata_parport/bpck.c b/drivers/ata/pata_parport/bpck.c index 2072e291fd16..ecb98bf0e6de 100644 --- a/drivers/ata/pata_parport/bpck.c +++ b/drivers/ata/pata_parport/bpck.c @@ -274,7 +274,7 @@ static void bpck_force_spp(struct pi_adapter *pi) #define TEST_LEN 16 -static int bpck_test_proto(struct pi_adapter *pi, char *scratch) +static int bpck_test_proto(struct pi_adapter *pi) { int i, e, l, h, om; char buf[TEST_LEN]; diff --git a/drivers/ata/pata_parport/epat.c b/drivers/ata/pata_parport/epat.c index da3398941f81..26d1b6d438bc 100644 --- a/drivers/ata/pata_parport/epat.c +++ b/drivers/ata/pata_parport/epat.c @@ -246,10 +246,11 @@ static void epat_disconnect(struct pi_adapter *pi) w2(pi->saved_r2); } -static int epat_test_proto(struct pi_adapter *pi, char *scratch) +static int epat_test_proto(struct pi_adapter *pi) { int k, j, f, cc; int e[2] = {0,0}; + char scratch[512]; epat_connect(pi); cc = RR(0xd); diff --git a/drivers/ata/pata_parport/epia.c b/drivers/ata/pata_parport/epia.c index a83685ed9dde..101a0d9f1aa6 100644 --- a/drivers/ata/pata_parport/epia.c +++ b/drivers/ata/pata_parport/epia.c @@ -232,10 +232,11 @@ static void epia_write_block(struct pi_adapter *pi, char *buf, int count) } -static int epia_test_proto(struct pi_adapter *pi, char *scratch) +static int epia_test_proto(struct pi_adapter *pi) { int j, k, f; int e[2] = {0,0}; + char scratch[512]; epia_connect(pi); for (j=0;j<2;j++) { diff --git a/drivers/ata/pata_parport/friq.c b/drivers/ata/pata_parport/friq.c index 7ace1f7eea34..9c4a6487b2a9 100644 --- a/drivers/ata/pata_parport/friq.c +++ b/drivers/ata/pata_parport/friq.c @@ -178,10 +178,11 @@ static void friq_disconnect(struct pi_adapter *pi) w2(pi->saved_r2); } -static int friq_test_proto(struct pi_adapter *pi, char *scratch) +static int friq_test_proto(struct pi_adapter *pi) { int j, k, r; int e[2] = {0,0}; + char scratch[512]; pi->saved_r0 = r0(); w0(0xff); udelay(20); CMD(0x3d); /* turn the power on */ diff --git a/drivers/ata/pata_parport/frpw.c b/drivers/ata/pata_parport/frpw.c index d04a11889066..024b5c0737e0 100644 --- a/drivers/ata/pata_parport/frpw.c +++ b/drivers/ata/pata_parport/frpw.c @@ -219,10 +219,11 @@ static int frpw_test_pnp(struct pi_adapter *pi) a hack :-( */ -static int frpw_test_proto(struct pi_adapter *pi, char *scratch) +static int frpw_test_proto(struct pi_adapter *pi) { int j, k, r; int e[2] = {0,0}; + char scratch[512]; if ((pi->private>>1) != pi->port) pi->private = frpw_test_pnp(pi) + 2*pi->port; diff --git a/drivers/ata/pata_parport/pata_parport.c b/drivers/ata/pata_parport/pata_parport.c index 27aa2419af02..77a3e5a3f062 100644 --- a/drivers/ata/pata_parport/pata_parport.c +++ b/drivers/ata/pata_parport/pata_parport.c @@ -276,7 +276,7 @@ static void pi_release(struct pi_adapter *pi) module_put(pi->proto->owner); } -static int default_test_proto(struct pi_adapter *pi, char *scratch) +static int default_test_proto(struct pi_adapter *pi) { int j, k; int e[2] = { 0, 0 }; @@ -300,21 +300,21 @@ static int default_test_proto(struct pi_adapter *pi, char *scratch) return e[0] && e[1]; /* not here if both > 0 */ } -static int pi_test_proto(struct pi_adapter *pi, char *scratch) +static int pi_test_proto(struct pi_adapter *pi) { int res; parport_claim_or_block(pi->pardev); if (pi->proto->test_proto) - res = pi->proto->test_proto(pi, scratch); + res = pi->proto->test_proto(pi); else - res = default_test_proto(pi, scratch); + res = default_test_proto(pi); parport_release(pi->pardev); return res; } -static bool pi_probe_mode(struct pi_adapter *pi, int max, char *scratch) +static bool pi_probe_mode(struct pi_adapter *pi, int max) { int best, range; @@ -326,7 +326,7 @@ static bool pi_probe_mode(struct pi_adapter *pi, int max, char *scratch) range = 8; if (range == 8 && pi->port % 8) return false; - return !pi_test_proto(pi, scratch); + return !pi_test_proto(pi); } best = -1; for (pi->mode = 0; pi->mode < max; pi->mode++) { @@ -335,14 +335,14 @@ static bool pi_probe_mode(struct pi_adapter *pi, int max, char *scratch) range = 8; if (range == 8 && pi->port % 8) break; - if (!pi_test_proto(pi, scratch)) + if (!pi_test_proto(pi)) best = pi->mode; } pi->mode = best; return best > -1; } -static bool pi_probe_unit(struct pi_adapter *pi, int unit, char *scratch) +static bool pi_probe_unit(struct pi_adapter *pi, int unit) { int max, s, e; @@ -367,14 +367,14 @@ static bool pi_probe_unit(struct pi_adapter *pi, int unit, char *scratch) for (pi->unit = s; pi->unit < e; pi->unit++) { if (pi->proto->probe_unit(pi)) { parport_release(pi->pardev); - return pi_probe_mode(pi, max, scratch); + return pi_probe_mode(pi, max); } } parport_release(pi->pardev); return false; } - return pi_probe_mode(pi, max, scratch); + return pi_probe_mode(pi, max); } static void pata_parport_dev_release(struct device *dev) @@ -419,7 +419,6 @@ static struct pi_adapter *pi_init_one(struct parport *parport, struct pi_protocol *pr, int mode, int unit, int delay) { struct pardev_cb par_cb = { }; - char scratch[512]; const struct ata_port_info *ppi[] = { &pata_parport_port_info }; struct ata_host *host; struct pi_adapter *pi; @@ -469,7 +468,7 @@ static struct pi_adapter *pi_init_one(struct parport *parport, if (!pi->pardev) goto out_module_put; - if (!pi_probe_unit(pi, unit, scratch)) { + if (!pi_probe_unit(pi, unit)) { dev_info(&pi->dev, "Adapter not found\n"); goto out_unreg_parport; } diff --git a/include/linux/pata_parport.h b/include/linux/pata_parport.h index e45bb1896003..bbfa4e63ee85 100644 --- a/include/linux/pata_parport.h +++ b/include/linux/pata_parport.h @@ -67,7 +67,7 @@ struct pi_protocol { int (*test_port)(struct pi_adapter *pi); int (*probe_unit)(struct pi_adapter *pi); - int (*test_proto)(struct pi_adapter *pi, char *scratch); + int (*test_proto)(struct pi_adapter *pi); void (*log_adapter)(struct pi_adapter *pi); int (*init_proto)(struct pi_adapter *pi); -- Ondrej Zary