Re: [PATCH 2/2] test-hexdump.c: Fix initconst confusion

From: Andrew Morton
Date: Wed Apr 08 2015 - 18:36:00 EST


On Wed, 8 Apr 2015 06:06:45 -0700 Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
>
> const char *...[] is not const, but an array of pointer to const.
> So these arrays cannot be __initconst, but must be __initdata
>
> This fixes section conflicts with LTO.
>
> --- a/lib/test-hexdump.c
> +++ b/lib/test-hexdump.c
> @@ -18,26 +18,26 @@ static const unsigned char data_b[] = {
>
> static const unsigned char data_a[] = ".2.{....p..$}.4...1.....L...C...";
>
> -static const char *test_data_1_le[] __initconst = {
> +static const char * const test_data_1_le[] __initconst = {

const char * const __initconst

> "be", "32", "db", "7b", "0a", "18", "93", "b2",
> "70", "ba", "c4", "24", "7d", "83", "34", "9b",
> "a6", "9c", "31", "ad", "9c", "0f", "ac", "e9",
> "4c", "d1", "19", "99", "43", "b1", "af", "0c",
> };
>
> +static const char *test_data_2_le[] __initdata = {
> +static const char *test_data_4_le[] __initdata = {
> +static const char *test_data_8_le[] __initdata = {

const char * __initdata

Why is test_data_1_le[] different?

Can we make them all "const char * const __initconst"? That would make
checkpatch happy ;)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/