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HID: bpf: drop unneeded casts discarding const

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In commit 33c0fb85b5 ("HID: bpf: make part of struct hid_device writable")
the const qualifier was dropped from struct hid_bpf_ctx::hid.
The casts are now unnecessary.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20241127-hid-bpf-cast-v1-1-f26424960e84@weissschuh.net
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
This commit is contained in:
Thomas Weißschuh 2024-11-27 17:42:47 +01:00 committed by Benjamin Tissoires
parent f9a11da1d9
commit 0b1b0c1124
1 changed files with 3 additions and 12 deletions
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15
drivers/hid/bpf/hid_bpf_dispatch.c
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@ -352,7 +352,6 @@ __hid_bpf_hw_check_params(struct hid_bpf_ctx *ctx, __u8 *buf, size_t *buf__sz,
{
struct hid_report_enum *report_enum;
struct hid_report *report;
struct hid_device *hdev;
u32 report_len;
/* check arguments */
@ -371,9 +370,7 @@ __hid_bpf_hw_check_params(struct hid_bpf_ctx *ctx, __u8 *buf, size_t *buf__sz,
if (*buf__sz < 1)
return -EINVAL;
hdev = (struct hid_device *)ctx->hid; /* discard const */
report_enum = hdev->report_enum + rtype;
report_enum = ctx->hid->report_enum + rtype;
report = hid_ops->hid_get_report(report_enum, buf);
if (!report)
return -EINVAL;
@ -402,7 +399,6 @@ hid_bpf_hw_request(struct hid_bpf_ctx *ctx, __u8 *buf, size_t buf__sz,
enum hid_report_type rtype, enum hid_class_request reqtype)
{
struct hid_bpf_ctx_kern *ctx_kern;
struct hid_device *hdev;
size_t size = buf__sz;
u8 *dma_data;
int ret;
@ -429,13 +425,11 @@ hid_bpf_hw_request(struct hid_bpf_ctx *ctx, __u8 *buf, size_t buf__sz,
return -EINVAL;
}
hdev = (struct hid_device *)ctx->hid; /* discard const */
dma_data = kmemdup(buf, size, GFP_KERNEL);
if (!dma_data)
return -ENOMEM;
ret = hid_ops->hid_hw_raw_request(hdev,
ret = hid_ops->hid_hw_raw_request(ctx->hid,
dma_data[0],
dma_data,
size,
@ -464,7 +458,6 @@ __bpf_kfunc int
hid_bpf_hw_output_report(struct hid_bpf_ctx *ctx, __u8 *buf, size_t buf__sz)
{
struct hid_bpf_ctx_kern *ctx_kern;
struct hid_device *hdev;
size_t size = buf__sz;
u8 *dma_data;
int ret;
@ -478,13 +471,11 @@ hid_bpf_hw_output_report(struct hid_bpf_ctx *ctx, __u8 *buf, size_t buf__sz)
if (ret)
return ret;
hdev = (struct hid_device *)ctx->hid; /* discard const */
dma_data = kmemdup(buf, size, GFP_KERNEL);
if (!dma_data)
return -ENOMEM;
ret = hid_ops->hid_hw_output_report(hdev, dma_data, size, (u64)(long)ctx, true);
ret = hid_ops->hid_hw_output_report(ctx->hid, dma_data, size, (u64)(long)ctx, true);
kfree(dma_data);
return ret;