From: marek.vasut@gmail.com
To: linux-pci@vger.kernel.org
Cc: Marek Vasut <marek.vasut+renesas@gmail.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Phil Edworthy <phil.edworthy@renesas.com>,
Simon Horman <horms+renesas@verge.net.au>,
Wolfram Sang <wsa@the-dreams.de>,
linux-renesas-soc@vger.kernel.org
Subject: [PATCH V2 4/6] PCI: rcar: Replace (8 * n) with (n << 3)
Date: Fri, 22 Mar 2019 03:38:42 +0100 [thread overview]
Message-ID: <20190322023844.18574-4-marek.vasut@gmail.com> (raw)
In-Reply-To: <20190322023844.18574-1-marek.vasut@gmail.com>
From: Marek Vasut <marek.vasut+renesas@gmail.com>
Replace (8 * n) with (n << 3) to make bit shift operations consistent.
No functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: linux-renesas-soc@vger.kernel.org
To: linux-pci@vger.kernel.org
---
V2: Bundle this patch with other cleanups before resending
---
drivers/pci/controller/pcie-rcar.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
index 66599e0c4bb4..0ab05803bb70 100644
--- a/drivers/pci/controller/pcie-rcar.c
+++ b/drivers/pci/controller/pcie-rcar.c
@@ -169,7 +169,7 @@ enum {
static void rcar_rmw32(struct rcar_pcie *pcie, int where, u32 mask, u32 data)
{
- unsigned int shift = 8 * (where & 3);
+ unsigned int shift = (where & 3) << 3;
u32 val = rcar_pci_read_reg(pcie, where & ~3);
val &= ~(mask << shift);
@@ -179,7 +179,7 @@ static void rcar_rmw32(struct rcar_pcie *pcie, int where, u32 mask, u32 data)
static u32 rcar_read_conf(struct rcar_pcie *pcie, int where)
{
- unsigned int shift = 8 * (where & 3);
+ unsigned int shift = (where & 3) << 3;
u32 val = rcar_pci_read_reg(pcie, where & ~3);
return val >> shift;
@@ -280,9 +280,9 @@ static int rcar_pcie_read_conf(struct pci_bus *bus, unsigned int devfn,
}
if (size == 1)
- *val = (*val >> (8 * (where & 3))) & 0xff;
+ *val = (*val >> ((where & 3) << 3)) & 0xff;
else if (size == 2)
- *val = (*val >> (8 * (where & 2))) & 0xffff;
+ *val = (*val >> ((where & 2) << 3)) & 0xffff;
dev_dbg(&bus->dev, "pcie-config-read: bus=%3d devfn=0x%04x where=0x%04x size=%d val=0x%08lx\n",
bus->number, devfn, where, size, (unsigned long)*val);
@@ -307,11 +307,11 @@ static int rcar_pcie_write_conf(struct pci_bus *bus, unsigned int devfn,
bus->number, devfn, where, size, (unsigned long)val);
if (size == 1) {
- shift = 8 * (where & 3);
+ shift = (where & 3) << 3;
data &= ~(0xff << shift);
data |= ((val & 0xff) << shift);
} else if (size == 2) {
- shift = 8 * (where & 2);
+ shift = (where & 2) << 3;
data &= ~(0xffff << shift);
data |= ((val & 0xffff) << shift);
} else
--
2.20.1
next prev parent reply other threads:[~2019-03-22 2:38 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-22 2:38 [PATCH V2 1/6] PCI: rcar: Clean up remaining macros defining bits marek.vasut
2019-03-22 2:38 ` [PATCH V2 2/6] PCI: rcar: Replace unsigned long with u32 in register accessors marek.vasut
2019-03-22 8:20 ` Wolfram Sang
2019-03-22 2:38 ` [PATCH V2 3/6] PCI: rcar: Replace various variable types with unsigned ones for register values marek.vasut
2019-03-22 8:22 ` Wolfram Sang
2019-03-22 8:41 ` Wolfram Sang
2019-03-23 1:28 ` Marek Vasut
2019-03-22 2:38 ` marek.vasut [this message]
2019-03-22 8:32 ` [PATCH V2 4/6] PCI: rcar: Replace (8 * n) with (n << 3) Wolfram Sang
2019-03-22 2:38 ` [PATCH V2 5/6] PCI: rcar: Clean up debug messages marek.vasut
2019-03-22 8:32 ` Wolfram Sang
2019-03-22 2:38 ` [PATCH V2 6/6] PCI: rcar: Allow 64bit MSI addresses marek.vasut
2019-03-22 8:34 ` Wolfram Sang
2019-03-23 1:52 ` Marek Vasut
2019-03-22 8:20 ` [PATCH V2 1/6] PCI: rcar: Clean up remaining macros defining bits Wolfram Sang
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=20190322023844.18574-4-marek.vasut@gmail.com \
--to=marek.vasut@gmail.com \
--cc=geert+renesas@glider.be \
--cc=horms+renesas@verge.net.au \
--cc=linux-pci@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=marek.vasut+renesas@gmail.com \
--cc=phil.edworthy@renesas.com \
--cc=wsa@the-dreams.de \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).