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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2025-01-18 22:10:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-03 16:29:53 +0100 |
| commit | 51333bfbf18f730a78bbb85895f9c9e4c994d883 (patch) | |
| tree | 28844b0061329ee7e5225051d8fd60c4f883f5ba /Documentation/driver-api | |
| parent | 42bc7faaf3a0da2adff71e292efe3eb428018c07 (diff) | |
| download | linux-51333bfbf18f730a78bbb85895f9c9e4c994d883.tar.gz | |
usb: musb: Constify struct musb_fifo_cfg
'struct musb_fifo_cfg' are not modified in these drivers.
Constifying these structures moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
64381 5537 202 70120 111e8 drivers/usb/musb/musb_core.o
After:
=====
text data bss dec hex filename
64957 4929 202 70088 111c8 drivers/usb/musb/musb_core.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/26e6f3e25dc8e785d0034dd7e59918e455563e60.1737234596.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/driver-api')
| -rw-r--r-- | Documentation/driver-api/usb/writing_musb_glue_layer.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/driver-api/usb/writing_musb_glue_layer.rst b/Documentation/driver-api/usb/writing_musb_glue_layer.rst index e755c8551bbaef..0bb96ecdf527b4 100644 --- a/Documentation/driver-api/usb/writing_musb_glue_layer.rst +++ b/Documentation/driver-api/usb/writing_musb_glue_layer.rst @@ -613,7 +613,7 @@ endpoints configuration from the hardware, so we use line 12 instruction to bypass reading the configuration from silicon, and rely on a hard-coded table that describes the endpoints configuration instead:: - static struct musb_fifo_cfg jz4740_musb_fifo_cfg[] = { + static const struct musb_fifo_cfg jz4740_musb_fifo_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 64, }, |