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lib: sbi: improve the definition of SBI_IPI_EVENT_MAX
The previous definition had the assumption that the machine word length is equal to the word length of LONG. Remove this assumption and add a static check to prevent errors in subsequent modifications. Signed-off-by: Xiang W <wxjstz@126.com> Reviewed-by: Anup Patel <anup@brainfault.org>
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2 changed files with 6 additions and 1 deletions
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@ -14,7 +14,7 @@
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/* clang-format off */
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#define SBI_IPI_EVENT_MAX __riscv_xlen
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#define SBI_IPI_EVENT_MAX (8 * __SIZEOF_LONG__)
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/* clang-format on */
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@ -27,6 +27,11 @@ struct sbi_ipi_data {
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unsigned long ipi_type;
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};
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_Static_assert(
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8 * sizeof(((struct sbi_ipi_data*)0)->ipi_type) == SBI_IPI_EVENT_MAX,
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"type of sbi_ipi_data.ipi_type has changed, please redefine SBI_IPI_EVENT_MAX"
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);
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static unsigned long ipi_data_off;
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static const struct sbi_ipi_device *ipi_dev = NULL;
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static const struct sbi_ipi_event_ops *ipi_ops_array[SBI_IPI_EVENT_MAX];
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