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SubjectRe: [PATCH 04/17] firmware: qcom_scm: Remove unused qcom_scm_get_version
On Mon 04 Nov 17:27 PST 2019, Elliot Berman wrote:

> Remove unused qcom_scm_get_version.
>
> Signed-off-by: Elliot Berman <eberman@codeaurora.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

> ---
> drivers/firmware/qcom_scm-32.c | 36 ------------------------------------
> include/linux/qcom_scm.h | 2 --
> 2 files changed, 38 deletions(-)
>
> diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c
> index b09fddf..b7f9f28 100644
> --- a/drivers/firmware/qcom_scm-32.c
> +++ b/drivers/firmware/qcom_scm-32.c
> @@ -291,42 +291,6 @@ static s32 qcom_scm_call_atomic2(u32 svc, u32 cmd, u32 arg1, u32 arg2)
> return r0;
> }
>
> -u32 qcom_scm_get_version(void)
> -{
> - int context_id;
> - static u32 version = -1;
> - register u32 r0 asm("r0");
> - register u32 r1 asm("r1");
> -
> - if (version != -1)
> - return version;
> -
> - mutex_lock(&qcom_scm_lock);
> -
> - r0 = 0x1 << 8;
> - r1 = (u32)&context_id;
> - do {
> - asm volatile(
> - __asmeq("%0", "r0")
> - __asmeq("%1", "r1")
> - __asmeq("%2", "r0")
> - __asmeq("%3", "r1")
> -#ifdef REQUIRES_SEC
> - ".arch_extension sec\n"
> -#endif
> - "smc #0 @ switch to secure world\n"
> - : "=r" (r0), "=r" (r1)
> - : "r" (r0), "r" (r1)
> - : "r2", "r3", "r12");
> - } while (r0 == QCOM_SCM_INTERRUPTED);
> -
> - version = r1;
> - mutex_unlock(&qcom_scm_lock);
> -
> - return version;
> -}
> -EXPORT_SYMBOL(qcom_scm_get_version);
> -
> /**
> * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus
> * @entry: Entry point function for the cpus
> diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h
> index f8b6525..05a1c7a 100644
> --- a/include/linux/qcom_scm.h
> +++ b/include/linux/qcom_scm.h
> @@ -59,7 +59,6 @@ extern bool qcom_scm_hdcp_available(void);
> extern int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
> u32 *resp);
> extern int qcom_scm_qsmmu500_wait_safe_toggle(bool en);
> -extern u32 qcom_scm_get_version(void);
> extern bool qcom_scm_is_available(void);
> #else
>
> @@ -101,7 +100,6 @@ static inline int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
> u32 *resp) { return -ENODEV; }
> static inline int qcom_scm_qsmmu500_wait_safe_toggle(bool en)
> { return -ENODEV; }
> -static inline u32 qcom_scm_get_version(void) { return 0; }
> static inline bool qcom_scm_is_available(void) { return false; }
> #endif
> #endif
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>

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