Re: [PATCH v2 2/2] mmc, sdhci, bcm-kona, LLVMLinux: Remove use of __initconst

From: Behan Webster
Date: Wed Sep 24 2014 - 14:22:02 EST


On 09/24/14 02:22, Arnd Bergmann wrote:
On Tuesday 23 September 2014 15:55:08 behanw@xxxxxxxxxxxxxxxxxx wrote:
--- a/drivers/mmc/host/sdhci-bcm-kona.c
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -225,7 +225,7 @@ static struct sdhci_pltfm_data sdhci_pltfm_data_kona = {
SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
};
-static struct __initconst of_device_id sdhci_bcm_kona_of_match[] = {
+static struct of_device_id const sdhci_bcm_kona_of_match[] = {
{ .compatible = "brcm,kona-sdhci"},
{ .compatible = "bcm,kona-sdhci"}, /* deprecated name */
{}

Sorry for giving you trouble over such a simple patch (especially
one that I have acked already), but I just noticed that this is
not following the common style we use in the kernel.
It's all good. It's not like you haven't saved me a tonne of time already! :)

Almost everywhere in Linux, we use

static const struct of_device_id sdhci_bcm_kona_of_match[] = {

not

static struct of_device_id const sdhci_bcm_kona_of_match[] = {
True enough. I put the const where I did to be in keeping with the intent of __initconst, making the array const instead of the contained type.

AFAICT they behave in identical ways,
Indeed. For C in both cases the resulting array of struct of_device_id ends up in .rodata, so functionally equivalent.

but the first one seems
easier to read for someone familiar with kernel code.
No worries. Happy to post a v3.

Linus Walleij: Would you like me to respin the "gpio, bcm-kona, LLVMLinux: Remove use of __initconst" patch as well?

Behan

--
Behan Webster
behanw@xxxxxxxxxxxxxxxxxx

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