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'struct cdns_reg_pairs' is not modified in this driver. Constifying this structure moves some data to a read-only section, so increase overall security. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 60489 4342 16 64847 fd4f drivers/phy/cadence/phy-cadence-sierra.o After: ===== text data bss dec hex filename 60521 4310 16 64847 fd4f drivers/phy/cadence/phy-cadence-sierra.o Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/c57ee8206ebba8c222d7d954335654384072b9ac.1720723132.git.christophe.jaillet@wanadoo.fr Signed-off-by: Vinod Koul <vkoul@kernel.org>