diff options
author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2024-07-09 19:41:29 +0200 |
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committer | Nishanth Menon <nm@ti.com> | 2024-08-06 22:33:32 +0200 |
commit | d9483b44c94eba6fa7451caf27cc7e993c8cc568 (patch) | |
tree | e4e19e4444f4c20d660fbd8624861764091c5e7c /drivers/soc | |
parent | Linux 6.11-rc1 (diff) | |
download | linux-d9483b44c94eba6fa7451caf27cc7e993c8cc568.tar.xz linux-d9483b44c94eba6fa7451caf27cc7e993c8cc568.zip |
soc: ti: k3-ringacc: Constify struct k3_ring_ops
'struct k3_ring_ops' is not modified in this driver.
Constifying this structure 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
17090 3304 32 20426 4fca drivers/soc/ti/k3-ringacc.o
After:
=====
text data bss dec hex filename
17266 3144 32 20442 4fda drivers/soc/ti/k3-ringacc.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/cb9dfc18cdf890afa2c53cd74b0b330d6f1c30ab.1720546863.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Nishanth Menon <nm@ti.com>
Diffstat (limited to 'drivers/soc')
-rw-r--r-- | drivers/soc/ti/k3-ringacc.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/soc/ti/k3-ringacc.c b/drivers/soc/ti/k3-ringacc.c index fd4251d75935..8c0102968351 100644 --- a/drivers/soc/ti/k3-ringacc.c +++ b/drivers/soc/ti/k3-ringacc.c @@ -161,7 +161,7 @@ struct k3_ring { struct k3_ringacc_proxy_target_regs __iomem *proxy; dma_addr_t ring_mem_dma; void *ring_mem_virt; - struct k3_ring_ops *ops; + const struct k3_ring_ops *ops; u32 size; enum k3_ring_size elm_size; enum k3_ring_mode mode; @@ -268,17 +268,17 @@ static int k3_ringacc_ring_pop_mem(struct k3_ring *ring, void *elem); static int k3_dmaring_fwd_pop(struct k3_ring *ring, void *elem); static int k3_dmaring_reverse_pop(struct k3_ring *ring, void *elem); -static struct k3_ring_ops k3_ring_mode_ring_ops = { +static const struct k3_ring_ops k3_ring_mode_ring_ops = { .push_tail = k3_ringacc_ring_push_mem, .pop_head = k3_ringacc_ring_pop_mem, }; -static struct k3_ring_ops k3_dmaring_fwd_ops = { +static const struct k3_ring_ops k3_dmaring_fwd_ops = { .push_tail = k3_ringacc_ring_push_mem, .pop_head = k3_dmaring_fwd_pop, }; -static struct k3_ring_ops k3_dmaring_reverse_ops = { +static const struct k3_ring_ops k3_dmaring_reverse_ops = { /* Reverse side of the DMA ring can only be popped by SW */ .pop_head = k3_dmaring_reverse_pop, }; @@ -288,7 +288,7 @@ static int k3_ringacc_ring_pop_io(struct k3_ring *ring, void *elem); static int k3_ringacc_ring_push_head_io(struct k3_ring *ring, void *elem); static int k3_ringacc_ring_pop_tail_io(struct k3_ring *ring, void *elem); -static struct k3_ring_ops k3_ring_mode_msg_ops = { +static const struct k3_ring_ops k3_ring_mode_msg_ops = { .push_tail = k3_ringacc_ring_push_io, .push_head = k3_ringacc_ring_push_head_io, .pop_tail = k3_ringacc_ring_pop_tail_io, @@ -300,7 +300,7 @@ static int k3_ringacc_ring_push_tail_proxy(struct k3_ring *ring, void *elem); static int k3_ringacc_ring_pop_head_proxy(struct k3_ring *ring, void *elem); static int k3_ringacc_ring_pop_tail_proxy(struct k3_ring *ring, void *elem); -static struct k3_ring_ops k3_ring_mode_proxy_ops = { +static const struct k3_ring_ops k3_ring_mode_proxy_ops = { .push_tail = k3_ringacc_ring_push_tail_proxy, .push_head = k3_ringacc_ring_push_head_proxy, .pop_tail = k3_ringacc_ring_pop_tail_proxy, |