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From: Ondrej Zary <linux@zary.sk>
To: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Cc: Christoph Hellwig <hch@lst.de>,
	Sergey Shtylyov <s.shtylyov@omp.ru>, Jens Axboe <axboe@kernel.dk>,
	Tim Waugh <tim@cyberelk.net>,
	linux-block@vger.kernel.org, linux-parport@lists.infradead.org,
	linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 01/12] pata_parport: Remove pi_swab16 and pi_swab32
Date: Sat, 11 Feb 2023 15:42:21 +0100	[thread overview]
Message-ID: <20230211144232.15138-2-linux@zary.sk> (raw)
In-Reply-To: <20230211144232.15138-1-linux@zary.sk>

Convert comm and kbic drivers to use standard swab16.
Remove pi_swab16 and pi_swab32.

The funny thing: pi_swab32 was not swab32

Signed-off-by: Ondrej Zary <linux@zary.sk>
---
 drivers/ata/pata_parport/comm.c |  7 +++++--
 drivers/ata/pata_parport/kbic.c |  7 +++++--
 include/linux/pata_parport.h    | 17 -----------------
 3 files changed, 10 insertions(+), 21 deletions(-)

diff --git a/drivers/ata/pata_parport/comm.c b/drivers/ata/pata_parport/comm.c
index 1775e7ed9336..11ed9fb57744 100644
--- a/drivers/ata/pata_parport/comm.c
+++ b/drivers/ata/pata_parport/comm.c
@@ -165,11 +165,14 @@ static void comm_write_block( PIA *pi, char * buf, int count )
                 break;
 
         case 3: w3(0x48); (void)r1();
-                for (k=0;k<count/2;k++) w4w(pi_swab16(buf,k));
+		for (k = 0; k < count / 2; k++)
+			w4w(swab16(((u16 *)buf)[k]));
                 break;
 
         case 4: w3(0x48); (void)r1();
-                for (k=0;k<count/4;k++) w4l(pi_swab32(buf,k));
+		for (k = 0; k < count / 4; k++)
+			w4l(swab16(((u16 *)buf)[2 * k]) |
+			    swab16(((u16 *)buf)[2 * k + 1]) << 16);
                 break;
 
 
diff --git a/drivers/ata/pata_parport/kbic.c b/drivers/ata/pata_parport/kbic.c
index f0960eb68635..93430ca32a52 100644
--- a/drivers/ata/pata_parport/kbic.c
+++ b/drivers/ata/pata_parport/kbic.c
@@ -213,12 +213,15 @@ static void kbic_write_block( PIA *pi, char * buf, int count )
 		break;
 
 	case 4: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
-                for(k=0;k<count/2;k++) w4w(pi_swab16(buf,k));
+		for (k = 0; k < count / 2; k++)
+			w4w(swab16(((u16 *)buf)[k]));
                 w2(4); w2(0); w2(4);
                 break;
 
         case 5: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
-                for(k=0;k<count/4;k++) w4l(pi_swab32(buf,k));
+		for (k = 0; k < count / 4; k++)
+			w4l(swab16(((u16 *)buf)[2 * k]) |
+			    swab16(((u16 *)buf)[2 * k + 1]) << 16);
                 w2(4); w2(0); w2(4);
                 break;
 
diff --git a/include/linux/pata_parport.h b/include/linux/pata_parport.h
index 58781846f282..458544fe5e6c 100644
--- a/include/linux/pata_parport.h
+++ b/include/linux/pata_parport.h
@@ -54,23 +54,6 @@ typedef struct pi_adapter PIA;	/* for paride protocol modules */
 #define r4w()			(delay_p, inw(pi->port + 4))
 #define r4l()			(delay_p, inl(pi->port + 4))
 
-static inline u16 pi_swab16(char *b, int k)
-{
-	union { u16 u; char t[2]; } r;
-
-	r.t[0] = b[2 * k + 1]; r.t[1] = b[2 * k];
-	return r.u;
-}
-
-static inline u32 pi_swab32(char *b, int k)
-{
-	union { u32 u; char f[4]; } r;
-
-	r.f[0] = b[4 * k + 1]; r.f[1] = b[4 * k];
-	r.f[2] = b[4 * k + 3]; r.f[3] = b[4 * k + 2];
-	return r.u;
-}
-
 struct pi_protocol {
 	char name[8];
 
-- 
Ondrej Zary


  reply	other threads:[~2023-02-11 14:42 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-11 14:42 [PATCH 0/12] pata_parport: protocol drivers cleanups Ondrej Zary
2023-02-11 14:42 ` Ondrej Zary [this message]
2023-02-11 19:01   ` [PATCH 01/12] pata_parport: Remove pi_swab16 and pi_swab32 Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 02/12] pata_parport: Introduce module_pata_parport_driver macro Ondrej Zary
2023-02-12 12:19   ` Sergey Shtylyov
2023-02-12 18:19     ` Ondrej Zary
2023-02-11 14:42 ` [PATCH 03/12] pata_parport: remove devtype from struct pi_adapter Ondrej Zary
2023-02-11 19:11   ` Sergey Shtylyov
2023-02-11 20:47     ` Ondrej Zary
2023-02-12 12:17       ` Damien Le Moal
2023-02-11 14:42 ` [PATCH 04/12] pata_parport: remove device " Ondrej Zary
2023-02-12 17:36   ` Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 05/12] pata_parport: remove typedef struct PIA Ondrej Zary
2023-02-13 20:08   ` Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 06/12] pata_parport: remove verbose parameter from log_adapter() Ondrej Zary
2023-02-11 20:43   ` Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 07/12] pata_parport: remove scratch " Ondrej Zary
2023-02-12 17:14   ` Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 08/12] pata_parport: use dev_* and print_hex_* instead of printk Ondrej Zary
2023-02-14 20:55   ` Sergei Shtylyov
2023-02-11 14:42 ` [PATCH 09/12] pata_parport: remove verbose parameter from test_proto() Ondrej Zary
2023-02-11 19:56   ` Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 10/12] pata_parport: remove scratch " Ondrej Zary
2023-02-12 17:47   ` Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 11/12] pata_parport: remove obsolete changelogs Ondrej Zary
2023-02-13 20:42   ` Sergey Shtylyov
2023-02-11 14:42 ` [PATCH 12/12] pata_parport: move pata_parport.h to drivers/ata/pata_parport Ondrej Zary
2023-02-13 20:51   ` Sergey Shtylyov
2023-02-11 20:59 ` [PATCH 0/12] pata_parport: protocol drivers cleanups Sergey Shtylyov

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