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Message-ID: <486973921f89f70bcc5d42501eeca3fd105be2c4.camel@perches.com>
Date: Mon, 08 Jan 2024 02:21:10 -0800
From: Joe Perches <joe@...ches.com>
To: Sandeep C S <sandeep.cs@...sung.com>, Jiri Kosina <jikos@...nel.org>,
Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc: gaudium.lee@...sung.com, ih0923.kim@...sung.com,
suhyun_.kim@...sung.com, jitender.s21@...sung.com, junwan.cho@...sung.com,
linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [HID Patchsets for Samsung driver v2 2/6] HID: Samsung : Fix
the checkpatch complain.
On Mon, 2024-01-08 at 14:49 +0530, Sandeep C S wrote:
> Warning found by checkpatch.pl script.
[]
> diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c
[]
> @@ -67,20 +67,17 @@ static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
> rdesc[178] = 0x08;
> rdesc[180] = 0x06;
> rdesc[182] = 0x42;
> - } else
> - if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
> + } else if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
> rdesc[194] == 0x25 && rdesc[195] == 0x12) {
> samsung_irda_dev_trace(hdev, 203);
> rdesc[193] = 0x1;
> rdesc[195] = 0xf;
> - } else
> - if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
> + } else if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
> rdesc[126] == 0x25 && rdesc[127] == 0x11) {
> samsung_irda_dev_trace(hdev, 135);
> rdesc[125] = 0x1;
> rdesc[127] = 0xe;
> - } else
> - if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
> + } else if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
> rdesc[162] == 0x25 && rdesc[163] == 0x01) {
> samsung_irda_dev_trace(hdev, 171);
> rdesc[161] = 0x1;
For this block, I think a rewrite using memcmp would be clearer.
Something like:
---
drivers/hid/hid-samsung.c | 34 +++++++++++++++-------------------
1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c
index cf5992e970940..cd84fb5e68f69 100644
--- a/drivers/hid/hid-samsung.c
+++ b/drivers/hid/hid-samsung.c
@@ -58,33 +58,29 @@ static inline void samsung_irda_dev_trace(struct hid_device *hdev,
static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
- if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
- rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
- rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
- rdesc[182] == 0x40) {
+ if (*rsize == 184 &&
+ !memcmp(&rdesc[175], "\x25\x40\x75\x30\x95\x01", 6) &&
+ rdesc[182] == 0x40) {
samsung_irda_dev_trace(hdev, 184);
rdesc[176] = 0xff;
rdesc[178] = 0x08;
rdesc[180] = 0x06;
rdesc[182] = 0x42;
- } else
- if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
- rdesc[194] == 0x25 && rdesc[195] == 0x12) {
+ } else if (*rsize == 203 &&
+ !memcmp(&rdesc[192], "\x15\x00\x25\x12", 4)) {
samsung_irda_dev_trace(hdev, 203);
- rdesc[193] = 0x1;
- rdesc[195] = 0xf;
- } else
- if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
- rdesc[126] == 0x25 && rdesc[127] == 0x11) {
+ rdesc[193] = 0x01;
+ rdesc[195] = 0x0f;
+ } else if (*rsize == 135 &&
+ !memcmp(&rdesc[124], "\x15\x00\x25\x11", 4)) {
samsung_irda_dev_trace(hdev, 135);
- rdesc[125] = 0x1;
- rdesc[127] = 0xe;
- } else
- if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
- rdesc[162] == 0x25 && rdesc[163] == 0x01) {
+ rdesc[125] = 0x01;
+ rdesc[127] = 0x0e;
+ } else if (*rsize == 171 &&
+ !memcmp(&rdesc[160], "\x15\x00\x25\x01", 4)) {
samsung_irda_dev_trace(hdev, 171);
- rdesc[161] = 0x1;
- rdesc[163] = 0x3;
+ rdesc[161] = 0x01;
+ rdesc[163] = 0x03;
}
return rdesc;
}
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