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Subject: media: venus: Constify struct dec_bufsize_ops and enc_bufsize_ops
Author: Christophe JAILLET <christophe.jail...@wanadoo.fr>
Date: Sun Jun 2 16:27:34 2024 +0200
"struct dec_bufsize_ops and "struct enc_bufsize_ops" are not modified in
this driver.
Constifying these structures moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig:
Before:
text data bss dec hex filename
12494 822 0 13316 3404
drivers/media/platform/qcom/venus/hfi_plat_bufs_v6.o
After:
text data bss dec hex filename
12766 566 0 13332 3414
drivers/media/platform/qcom/venus/hfi_plat_bufs_v6.o
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
Reviewed-by: Bryan O'Donoghue <bryan.odonog...@linaro.org>
Signed-off-by: Stanimir Varbanov <stanimir.k.varba...@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/platform/qcom/venus/hfi_plat_bufs_v6.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
---
diff --git a/drivers/media/platform/qcom/venus/hfi_plat_bufs_v6.c
b/drivers/media/platform/qcom/venus/hfi_plat_bufs_v6.c
index f5a655973c08..6289166786ec 100644
--- a/drivers/media/platform/qcom/venus/hfi_plat_bufs_v6.c
+++ b/drivers/media/platform/qcom/venus/hfi_plat_bufs_v6.c
@@ -1063,51 +1063,51 @@ struct enc_bufsize_ops {
u32 (*persist)(void);
};
-static struct dec_bufsize_ops dec_h264_ops = {
+static const struct dec_bufsize_ops dec_h264_ops = {
.scratch = h264d_scratch_size,
.scratch1 = h264d_scratch1_size,
.persist1 = h264d_persist1_size,
};
-static struct dec_bufsize_ops dec_h265_ops = {
+static const struct dec_bufsize_ops dec_h265_ops = {
.scratch = h265d_scratch_size,
.scratch1 = h265d_scratch1_size,
.persist1 = h265d_persist1_size,
};
-static struct dec_bufsize_ops dec_vp8_ops = {
+static const struct dec_bufsize_ops dec_vp8_ops = {
.scratch = vpxd_scratch_size,
.scratch1 = vp8d_scratch1_size,
.persist1 = vp8d_persist1_size,
};
-static struct dec_bufsize_ops dec_vp9_ops = {
+static const struct dec_bufsize_ops dec_vp9_ops = {
.scratch = vpxd_scratch_size,
.scratch1 = vp9d_scratch1_size,
.persist1 = vp9d_persist1_size,
};
-static struct dec_bufsize_ops dec_mpeg2_ops = {
+static const struct dec_bufsize_ops dec_mpeg2_ops = {
.scratch = mpeg2d_scratch_size,
.scratch1 = mpeg2d_scratch1_size,
.persist1 = mpeg2d_persist1_size,
};
-static struct enc_bufsize_ops enc_h264_ops = {
+static const struct enc_bufsize_ops enc_h264_ops = {
.scratch = h264e_scratch_size,
.scratch1 = h264e_scratch1_size,
.scratch2 = enc_scratch2_size,
.persist = enc_persist_size,
};
-static struct enc_bufsize_ops enc_h265_ops = {
+static const struct enc_bufsize_ops enc_h265_ops = {
.scratch = h265e_scratch_size,
.scratch1 = h265e_scratch1_size,
.scratch2 = enc_scratch2_size,
.persist = enc_persist_size,
};
-static struct enc_bufsize_ops enc_vp8_ops = {
+static const struct enc_bufsize_ops enc_vp8_ops = {
.scratch = vp8e_scratch_size,
.scratch1 = vp8e_scratch1_size,
.scratch2 = enc_scratch2_size,
@@ -1186,7 +1186,7 @@ static int bufreq_dec(struct hfi_plat_buffers_params
*params, u32 buftype,
u32 codec = params->codec;
u32 width = params->width, height = params->height, out_min_count;
u32 out_width = params->out_width, out_height = params->out_height;
- struct dec_bufsize_ops *dec_ops;
+ const struct dec_bufsize_ops *dec_ops;
bool is_secondary_output = params->dec.is_secondary_output;
bool is_interlaced = params->dec.is_interlaced;
u32 max_mbs_per_frame = params->dec.max_mbs_per_frame;
@@ -1260,7 +1260,7 @@ static int bufreq_enc(struct hfi_plat_buffers_params
*params, u32 buftype,
struct hfi_buffer_requirements *bufreq)
{
enum hfi_version version = params->version;
- struct enc_bufsize_ops *enc_ops;
+ const struct enc_bufsize_ops *enc_ops;
u32 width = params->width;
u32 height = params->height;
bool is_tenbit = params->enc.is_tenbit;
