Commit ba89709a authored by Paul Walmsley's avatar Paul Walmsley
Browse files

riscv: signal: fix some warnings reported by sparse 



Clean up a few warnings reported by sparse in
arch/riscv/kernel/signal.c.  These come from code that was added
recently; they were missed when I initially reviewed the patch.

Fixes: 818d78ba ("riscv: signal: abstract header saving for setup_sigcontext")
Cc: Andy Chiu <andybnac@gmail.com>
Reported-by: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202601171848.ydLTJYrz-lkp@intel.com/


[pjw@kernel.org: updated to apply]
Signed-off-by: default avatarPaul Walmsley <pjw@kernel.org>
parent 63804fed

arch/riscv/kernel/signal.c

+3 −3
Original line number Diff line number Diff line
@@ -145,14 +145,14 @@ struct arch_ext_priv { 
	long (*save)(struct pt_regs *regs, void __user *sc_vec);

};



struct arch_ext_priv arch_ext_list[] = {

static struct arch_ext_priv arch_ext_list[] = {

	{

		.magic = RISCV_V_MAGIC,

		.save = &save_v_state,

	},

};



const size_t nr_arch_exts = ARRAY_SIZE(arch_ext_list);

static const size_t nr_arch_exts = ARRAY_SIZE(arch_ext_list);



static long restore_sigcontext(struct pt_regs *regs,

	struct sigcontext __user *sc)
@@ -297,7 +297,7 @@ static long setup_sigcontext(struct rt_sigframe __user *frame, 
		} else {

			err |= __put_user(arch_ext->magic, &sc_ext_ptr->magic);

			err |= __put_user(ext_size, &sc_ext_ptr->size);

			sc_ext_ptr = (void *)sc_ext_ptr + ext_size;

			sc_ext_ptr = (void __user *)sc_ext_ptr + ext_size;

		}

	}

	/* Write zero to fp-reserved space and check it on restore_sigcontext */